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Species found: 3730

• Ablepharus grayanus (STOLICZKA, 1872)
• Ablepharus sikimmensis (BLYTH, 1854)
• Abronia antauges (COPE, 1866)
• Abronia deppii (WIEGMANN, 1828)
• Abronia gadovii (BOULENGER, 1913)
• Abronia graminea (COPE, 1864)
• Abronia martindelcampoi FLORES-VILLELA & SÁNCHEZ-H., 2003
• Abronia oaxacae (GÜNTHER, 1885)
• Abronia ochoterenai (MARTIN DEL CAMPO, 1939)
• Abronia taeniata (WIEGMANN, 1828)
• Abronia viridiflava (BOCOURT, 1873)
• Acanthocercus atricollis (SMITH, 1849)
• Acanthocercus branchi WAGNER, GREENBAUM & BAUER, 2012
• Acanthocercus cyanocephalus (FALK, 1925)
• Acanthocercus gregorii (GÜNTHER, 1894)
• Acanthodactylus blanfordii BOULENGER, 1919
• Acanthodactylus boskianus (DAUDIN, 1802)
• Acanthodactylus cantoris GÜNTHER, 1864
• Acanthodactylus grandis BOULENGER, 1909
• Acanthodactylus hardyi HAAS, 1957
• Acanthodactylus margaritae TAMAR, GENIEZ, BRITO & CROCHET, 2017
• Acanthodactylus micropholis BLANFORD, 1874
• Acanthodactylus opheodurus ARNOLD, 1980
• Acanthodactylus orientalis ANGEL, 1936
• Acanthodactylus schmidti HAAS, 1957
• Acanthodactylus scutellatus (AUDOUIN, 1827)
• Acanthodactylus tristrami (GÜNTHER, 1864)
• Acanthophis antarcticus (SHAW, 1802)
• Acanthophis cryptamydros MADDOCK, ELLIS, DOUGHTY, SMITH & WÜSTER, 2015
• Acanthophis hawkei WELLS & WELLINGTON, 1985
• Acanthophis pyrrhus BOULENGER, 1898
• Acanthophis wellsi HOSER, 1998
• Acanthosaura armata (GRAY, 1827)
• Acanthosaura crucigera BOULENGER, 1885
• Acanthosaura lepidogaster (CUVIER, 1829)
• Achalinus ater BOURRET, 1937
• Achalinus meiguensis HU & ZHAO, 1966
• Achalinus rufescens BOULENGER, 1888
• Achalinus spinalis PETERS, 1869
• Achalinus werneri VAN DENBURGH, 1912
• Acontias breviceps ESSEX, 1925
• Acontias lineatus PETERS, 1879
• Acontias lineicauda HEWITT, 1937
• Acontias meleagris (LINNAEUS, 1758)
• Acontias orientalis HEWITT, 1937
• Acontias plumbeus BIANCONI, 1849
• Acontias rieppeli (LAMB, BISWAS & BAUER, 2010)
• Acrantophis dumerili JAN, 1860
• Acrantophis madagascariensis (DUMÉRIL & BIBRON, 1844)
• Acrochordus granulatus (SCHNEIDER, 1799)
• Acrochordus javanicus HORNSTEDT, 1787
• Adelphicos newmanorum TAYLOR, 1950
• Adelphicos quadrivirgatum JAN, 1862
• Adelphicos veraepacis STUART, 1941
• Adelphostigma occipitalis (JAN, 1863)
• Adelphostigma quadriocellata (SANTOS, DI-BERNARDO & DE LEMA, 2008)
• Adolfus africanus (BOULENGER, 1906)
• Aeluroscalabotes felinus (GÜNTHER, 1864)
• Afroedura africana (BOULENGER, 1888)
• Afroedura haackei ONDERSTALL, 1984
• Afroedura halli (HEWITT, 1935)
• Afroedura hawequensis MOUTON & MOSTET, 1985
• Afroedura karroica (HEWITT, 1925)
• Afroedura loveridgei BROADLEY, 1963
• Afroedura major ONDERSTALL, 1984
• Afroedura marleyi (FITZSIMONS, 1930)
• Afroedura multiporis (HEWITT, 1925)
• Afroedura namaquensis (FITZSIMONS, 1938)
• Afroedura otjihipa CONRADIE, SCHMITZ, LOBÓN-ROVIRA, BECKER, VAZ-PINTO & HAUPTFLEISCH, 2022
• Afroedura pondolia (HEWITT, 1925)
• Afroedura tirasensis HAACKE, 1965
• Afroedura transvaalica (HEWITT, 1925)
• Afronatrix anoscopus (COPE, 1861)
• Afrotyphlops angolensis (BOCAGE, 1866)
• Afrotyphlops anomalus (BOCAGE, 1873)
• Afrotyphlops bibronii (SMITH, 1846)
• Afrotyphlops brevis (SCORTECCI, 1929)
• Afrotyphlops calabresii (GANS & LAURENT, 1965)
• Afrotyphlops congestus (DUMÉRIL & BIBRON, 1844)
• Afrotyphlops cuneirostris (PETERS, 1879)
• Afrotyphlops dinga (PETERS, 1854)
• Afrotyphlops fornasinii (BIANCONI, 1849)
• Afrotyphlops gierrai (MOCQUARD, 1897)
• Afrotyphlops liberiensis (HALLOWELL, 1848)
• Afrotyphlops lineolatus (JAN, 1864)
• Afrotyphlops nanus BROADLEY & WALLACH, 2009
• Afrotyphlops nigrocandidus (BROADLEY & WALLACH, 2000)
• Afrotyphlops obtusus (PETERS, 1865)
• Afrotyphlops punctatus (LEACH, 1819)
• Afrotyphlops rondoensis (LOVERIDGE, 1942)
• Afrotyphlops schlegelii (BIANCONI, 1849)
• Afrotyphlops schmidti (LAURENT, 1956)
• Afrotyphlops steinhausi (WERNER, 1909)
• Agama aculeata MERREM, 1820
• Agama africana (HALLOWELL, 1844)
• Agama agama (LINNAEUS, 1758)
• Agama anchietae BOCAGE, 1896
• Agama armata PETERS, 1854
• Agama atra DAUDIN, 1802
• Agama etoshae MCLACHLAN, 1981
• Agama kirkii BOULENGER, 1885
• Agama knobeli BOULENGER & POWER, 1921
• Agama mossambica PETERS, 1854
• Agama paragama GRANDISON, 1968
• Agkistrodon bilineatus GÜNTHER, 1863
• Agkistrodon conanti GLOYD, 1969
• Agkistrodon contortrix (LINNAEUS, 1766)
• Agkistrodon howardgloydi CONANT, 1984
• Agkistrodon laticinctus GLOYD & CONANT, 1934
• Agkistrodon piscivorus (LACÉPÈDE, 1789)
• Agkistrodon russeolus GLOYD, 1972
• Agkistrodon taylori BURGER & ROBERTSON, 1951
• Ahaetulla anomala (ANNANDALE, 1906)
• Ahaetulla fasciolata (FISCHER, 1885)
• Ahaetulla flavescens (WALL, 1910)
• Ahaetulla fronticincta (GÜNTHER, 1858)
• Ahaetulla fusca (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Ahaetulla laudankia DEEPAK, NARAYANAN, SARKAR, DUTTA & MOHAPATRA, 2019
• Ahaetulla mycterizans (LINNAEUS, 1758)
• Ahaetulla nasuta (LACÉPÈDE, 1789)
• Ahaetulla oxyrhynca (BELL, 1825)
• Ahaetulla perroteti (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Ahaetulla prasina (BOIE, 1827)
• Ahaetulla pulverulenta (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Aipysurus duboisii BAVAY, 1869
• Aipysurus eydouxii (GRAY, 1849)
• Aipysurus laevis LACÉPÈDE, 1804
• Aipysurus pooleorum SMITH, 1974
• Alluaudina bellyi MOCQUARD, 1894
• Alluaudina mocquardi ANGEL, 1939
• Alopecion guttatum (SMITH, 1843)
• Alopoglossus amazonius RUTHVEN, 1924
• Alopoglossus angulatus (LINNAEUS, 1758)
• Alopoglossus brevifrontalis (BOULENGER, 1912)
• Alopoglossus carinicaudatus (COPE, 1876)
• Alopoglossus plicatus TAYLOR, 1949
• Alsophis antillensis (SCHLEGEL, 1837)
• Alsophis danforthi COCHRAN, 1938
• Alsophis rijgersmaei COPE, 1870
• Alsophis sanctonum BARBOUR, 1915
• Amalosia jacovae (COUPER, KEIM & HOSKIN, 2007)
• Amalosia lesueurii (DUMÉRIL & BIBRON, 1836)
• Amalosia obscura (KING, 1985)
• Amalosia rhombifer (GRAY, 1845)
• Amastridium sapperi (WERNER, 1903)
• Amastridium veliferum COPE, 1861
• Amblyodipsas concolor (SMITH, 1849)
• Amblyodipsas dimidiata (GÜNTHER, 1888)
• Amblyodipsas katangensis DE WITTE & LAURENT, 1942
• Amblyodipsas microphthalma (BIANCONI, 1852)
• Amblyodipsas polylepis (BOCAGE, 1873)
• Amblyodipsas unicolor (REINHARDT, 1843)
• Amblyodipsas ventrimaculata (ROUX, 1907)
• Ameiva aggerecusans KOCH, VENEGAS, RÖDDER, FLECKS & BÖHME, 2013
• Ameiva ameiva (LINNAEUS, 1758)
• Amerotyphlops amoipira (RODRIGUES & JUNCÁ, 2002)
• Amerotyphlops arenensis GRABOSKI, PEREIRA-FILHO, SILVA, COSTA PRUDENTE & ZAHER, 2015
• Amerotyphlops brongersmianus (VANZOLINI, 1976)
• Amerotyphlops costaricensis (JIMÉNEZ & SAVAGE, 1963)
• Amerotyphlops lehneri (ROUX, 1926)
• Amerotyphlops microstomus (COPE, 1866)
• Amerotyphlops minuisquamus (DIXON & HENDRICKS, 1979)
• Amerotyphlops paucisquamus (DIXON & HENDRICKS, 1979)
• Amerotyphlops reticulatus (LINNAEUS, 1758)
• Amerotyphlops tenuis (SALVIN, 1860)
• Amerotyphlops yonenagae (RODRIGUES, 1991)
• Amnisiophis amoenus (JAN, 1863)
• Amphibolurus muricatus (WHITE, 1790)
• Amphiesma monticola (JERDON, 1853)
• Amphiesma stolatum (LINNAEUS, 1758)
• Amphiesmoides ornaticeps (WERNER, 1924)
• Amphisbaena alba LINNAEUS, 1758
• Amphisbaena brasiliana (GRAY, 1865)
• Amphisbaena darwinii DUMÉRIL & BIBRON, 1839
• Amphisbaena fuliginosa LINNAEUS, 1758
• Amphisbaena occidentalis COPE, 1875
• Amphisbaena prunicolor (COPE, 1885)
• Amphisbaena townsendi STEJNEGER, 1911
• Amyda cartilaginea (BODDAERT, 1770)
• Anelytropsis papillosus COPE, 1885
• Anguiculus rappii (GÜNTHER, 1860)
• Anguis fragilis LINNAEUS, 1758
• Anilios australis GRAY, 1845
• Anilios batillus (WAITE, 1894)
• Anilios broomi (BOULENGER, 1898)
• Anilios diversus (WAITE, 1894)
• Anilios grypus (WAITE, 1918)
• Anilios guentheri (PETERS, 1865)
• Anilios leptosoma (ROBB, 1972)
• Anilios margaretae (STORR, 1981)
• Anilios minimus (KINGHORN, 1929)
• Anilios nema (SHEA & HORNER, 1997)
• Anilios nigrescens GRAY, 1845
• Anilios pinguis (WAITE, 1897)
• Anilios proximus (WAITE, 1893)
• Anilios torresianus (BOULENGER, 1889)
• Anilios unguirostris (PETERS, 1867)
• Anilios wiedii (PETERS, 1867)
• Anilios yirrikalae (KINGHORN, 1942)
• Anilius scytale (LINNAEUS, 1758)
• Anniella geronimensis SHAW, 1940
• Anniella pulchra GRAY, 1852
• Anolis carolinensis VOIGT, 1832
• Anolis chrysolepis DUMÉRIL & BIBRON, 1837
• Anolis cymbops COPE, 1864
• Anolis damulus COPE, 1864
• Anolis dunni SMITH, 1936
• Anolis fuscoauratus D’ORBIGNY, 1837
• Anolis gadovii BOULENGER, 1905
• Anolis impetigosus COPE, 1864
• Anolis laeviventris (WIEGMANN, 1834)
• Anolis liogaster BOULENGER, 1905
• Anolis megapholidotus SMITH, 1933
• Anolis milleri SMITH, 1950
• Anolis nebuloides BOCOURT, 1873
• Anolis nebulosus (WIEGMANN, 1834)
• Anolis ophiolepis COPE, 1861
• Anolis ortonii COPE, 1868
• Anolis punctatus DAUDIN, 1802
• Anolis rodriguezii BOCOURT, 1873
• Anolis sagrei DUMÉRIL & BIBRON, 1837
• Anolis sericeus HALLOWELL, 1856
• Anolis tandai AVILA-PIRES, 1995
• Anolis taylori SMITH & SPIELER, 1945
• Anomalepis flavapices PETERS, 1957
• Anomalepis mexicana JAN, 1860
• Anomalopus leuckartii (WEINLAND, 1863)
• Anomochilus weberi (LIDTH DE JEUDE, 1890)
• Anoplohydrus aemulans WERNER, 1909
• Antaioserpens warro (DE VIS, 1884)
• Antaresia childreni (GRAY, 1842)
• Antaresia maculosa (PETERS, 1873)
• Antaresia perthensis (STULL, 1932)
• Antillotyphlops annae (BREUIL, 1999)
• Antillotyphlops monensis (SCHMIDT, 1926)
• Antillotyphlops platycephalus (DUMÉRIL & BIBRON, 1844)
• Antillotyphlops richardii (DUMÉRIL & BIBRON, 1844)
• Apalone mutica (LESUEUR, 1827)
• Apalone spinifera (LESUEUR, 1827)
• Aparallactus capensis SMITH, 1849
• Aparallactus guentheri BOULENGER, 1895
• Aparallactus jacksonii (GÜNTHER, 1888)
• Aparallactus lineatus (PETERS, 1870)
• Aparallactus lunulatus (PETERS, 1854)
• Aparallactus modestus (GÜNTHER, 1859)
• Aparallactus niger BOULENGER, 1897
• Aphaniotis fusca (PETERS, 1864)
• Aplopeltura boa (BOIE, 1828)
• Apodora papuana (PETERS & DORIA, 1878)
• Apostolepis albicollaris DE LEMA, 2002
• Apostolepis ambiniger (PETERS, 1869)
• Apostolepis assimilis (REINHARDT, 1861)
• Apostolepis cearensis GOMES, 1915
• Apostolepis dimidiata (JAN, 1862)
• Apostolepis dorbignyi (SCHLEGEL, 1837)
• Apostolepis flavotorquata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Apostolepis gaboi RODRIGUES, 1993
• Apostolepis intermedia KOSLOWSKY, 1898
• Apostolepis niceforoi AMARAL, 1935
• Apostolepis nigrolineata (PETERS, 1869)
• Apostolepis nigroterminata BOULENGER, 1896
• Apostolepis phillipsae HARVEY, 1999
• Apostolepis pymi BOULENGER, 1903
• Apostolepis quinquelineata (BOULENGER, 1896)
• Apostolepis quirogai GIRAUDO & SCROCCHI, 1998
• Apostolepis rondoni AMARAL, 1925
• Archelaphe bella (STANLEY, 1917)
• Argyrophis bothriorhynchus (GÜNTHER, 1864)
• Argyrophis diardii (SCHLEGEL, 1839)
• Argyrophis fuscus (DUMÉRIL, 1851)
• Argyrophis hypsobothrius (WERNER, 1917)
• Argyrophis muelleri (SCHLEGEL, 1839)
• Argyrophis siamensis (GÜNTHER, 1864)
• Aristelliger georgeensis (BOCOURT, 1873)
• Arizona elegans KENNICOTT, 1859
• Arrhyton redimitum (COPE, 1862)
• Arrhyton taeniatum GÜNTHER, 1858
• Arrhyton vittatum (GUNDLACH, 1861)
• Asaccus andersoni TORKI, FATHINIA, ROSTAMI, GHARZI & NAZARI-SERENJEH, 2011
• Asaccus elisae (WERNER, 1896)
• Aspidelaps lubricus (LAURENTI, 1768)
• Aspidelaps scutatus (SMITH, 1849)
• Aspidites melanocephalus (KREFFT, 1864)
• Aspidites ramsayi (MACLEAY, 1882)
• Aspidomorphus muelleri (SCHLEGEL, 1837)
• Aspidomorphus schlegelii (GÜNTHER, 1872)
• Aspidoscelis angusticeps (COPE, 1878)
• Aspidoscelis burti (TAYLOR, 1938)
• Aspidoscelis carmenensis (MASLIN & SECOY, 1986)
• Aspidoscelis communis (COPE, 1878)
• Aspidoscelis cozumela (GADOW, 1906)
• Aspidoscelis danheimae (BURT, 1929)
• Aspidoscelis deppii (WIEGMANN, 1834)
• Aspidoscelis exsanguis (LOWE, 1956)
• Aspidoscelis gularis (BAIRD & GIRARD, 1852)
• Aspidoscelis hyperythrus (COPE, 1863)
• Aspidoscelis inornatus (BAIRD, 1859)
• Aspidoscelis labialis (STEJNEGER, 1890)
• Aspidoscelis lineattissimus (COPE, 1878)
• Aspidoscelis marmoratus (BAIRD & GIRARD, 1852)
• Aspidoscelis martyris (STEJNEGER, 1891)
• Aspidoscelis maslini (FRITTS, 1969)
• Aspidoscelis maximus (COPE, 1863)
• Aspidoscelis mexicanus (PETERS, 1869)
• Aspidoscelis motaguae (SACKETT, 1941)
• Aspidoscelis neomexicanus (LOWE & ZWEIFEL, 1952)
• Aspidoscelis pictus (VAN DENBURGH & SLEVIN, 1921)
• Aspidoscelis scalaris (COPE, 1892)
• Aspidoscelis sexlineatus (LINNAEUS, 1766)
• Aspidoscelis sonorae (LOWE & WRIGHT, 1964)
• Aspidoscelis stictogrammus (BURGER, 1950)
• Aspidoscelis tesselatus (SAY, 1822)
• Aspidoscelis tigris (BAIRD & GIRARD, 1852)
• Aspidoscelis uniparens (WRIGHT & LOWE, 1965)
• Aspidoscelis velox (SPRINGER, 1928)
• Aspidoscelis xanthonotus (DUELLMAN & LOWE, 1953)
• Aspidura brachyorrhos (BOIE, 1827)
• Aspidura trachyprocta COPE, 1860
• Asthenodipsas borneensis QUAH, GRISMER, LIM, ANUAR & CHAN, 2020
• Asthenodipsas ingeri QUAH, LIM & GRISMER, 2021
• Asthenodipsas laevis (BOIE, 1827)
• Asthenodipsas malaccanus PETERS, 1864
• Asthenodipsas stuebingi QUAH, GRISMER, LIM, ANUAR & IMBUN, 2019
• Asthenodipsas tropidonotus (LIDTH DE JEUDE, 1923)
• Asthenodipsas vertebralis (BOULENGER, 1900)
• Ateuchosaurus chinensis GRAY, 1845
• Atheris anisolepis MOCQUARD, 1887
• Atheris barbouri LOVERIDGE, 1930
• Atheris ceratophora WERNER, 1896
• Atheris chlorechis (PEL, 1852)
• Atheris hispida LAURENT, 1955
• Atheris mabuensis BRANCH & BAYLISS, 2009
• Atheris matildae MENEGON, DAVENPORT & HOWELL, 2011
• Atheris nitschei TORNIER, 1902
• Atheris rungweensis BOGERT, 1940
• Atheris squamigera HALLOWELL, 1854
• Atheris subocularis FISCHER, 1888
• Atractaspis andersonii BOULENGER, 1905
• Atractaspis aterrima GÜNTHER, 1863
• Atractaspis bibronii SMITH, 1849
• Atractaspis boulengeri MOCQUARD, 1897
• Atractaspis congica PETERS, 1877
• Atractaspis corpulenta (HALLOWELL, 1854)
• Atractaspis dahomeyensis BOCAGE, 1887
• Atractaspis duerdeni GOUGH, 1907
• Atractaspis engaddensis HAAS, 1950
• Atractaspis engdahli LÖNNBERG & ANDERSSON, 1913
• Atractaspis fallax PETERS, 1867
• Atractaspis irregularis (REINHARDT, 1843)
• Atractaspis microlepidota GÜNTHER, 1866
• Atractaspis micropholis GÜNTHER, 1872
• Atractaspis reticulata SJÖSTEDT, 1896
• Atractaspis watsoni BOULENGER, 1908
• Atractus albuquerquei CUNHA & NASCIMENTO, 1983
• Atractus andinus PRADO, 1944
• Atractus arangoi PRADO, 1940
• Atractus atlas PASSOS, SCANFERLA, MELO-SAMPAIO, BRITO & ALMENDARIZ, 2018
• Atractus badius (BOIE, 1827)
• Atractus biseriatus PRADO, 1941
• Atractus bocki WERNER, 1909
• Atractus bocourti BOULENGER, 1894
• Atractus boulengerii PERACCA, 1896
• Atractus carrioni PARKER, 1930
• Atractus collaris PERACCA, 1897
• Atractus crassicaudatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Atractus dapsilis MELO-SAMPAIO, PASSOS, FOUQUET, COSTA-PRUDENTE & TORRES-CARVAJAL, 2019
• Atractus dunni SAVAGE, 1955
• Atractus elaps (GÜNTHER, 1858)
• Atractus emigdioi GONZÁLEZ-SPONGA, 1971
• Atractus favae (DE FILIPPI, 1840)
• Atractus flammigerus (BOIE, 1827)
• Atractus fuliginosus (HALLOWELL, 1845)
• Atractus gigas MYERS & SCHARGEL, 2006
• Atractus guentheri (WUCHERER, 1861)
• Atractus indistinctus PRADO, 1940
• Atractus iridescens PERACCA, 1896
• Atractus lancinii ROZE, 1961
• Atractus lasallei AMARAL, 1931
• Atractus latifrons (GÜNTHER, 1868)
• Atractus lehmanni BOETTGER, 1898
• Atractus loveridgei AMARAL, 1930
• Atractus maculatus (GÜNTHER, 1858)
• Atractus major BOULENGER, 1894
• Atractus manizalesensis PRADO, 1940
• Atractus medusa PASSOS, MUESES-CISNEROS, LYNCH & FERNANDES, 2009
• Atractus melas BOULENGER, 1908
• Atractus microrhynchus (COPE, 1868)
• Atractus obesus MARX, 1960
• Atractus occidentalis SAVAGE, 1955
• Atractus occipitoalbus (JAN, 1862)
• Atractus paraguayensis WERNER, 1924
• Atractus paucidens (DESPAX, 1910)
• Atractus poeppigi (JAN, 1862)
• Atractus potschi FERNANDES, 1995
• Atractus reticulatus (BOULENGER, 1885)
• Atractus roulei DESPAX, 1910
• Atractus sanguineus PRADO, 1944
• Atractus schach (BOIE, 1827)
• Atractus snethlageae CUNHA & NASCIMENTO, 1983
• Atractus steyermarki ROZE, 1958
• Atractus tamessari KOK, 2006
• Atractus thalesdelemai PASSOS, FERNANDES & ZANELLA, 2005
• Atractus titanicus PASSOS, ARREDONDO, FERNANDES & LYNCH, 2009
• Atractus torquatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Atractus touzeti SCHARGEL, LAMAR, PASSOS, VALENCIA, CISNEROS-HEREDIA & CAMPBELL, 2013
• Atractus trilineatus WAGLER, 1828
• Atractus ukupacha MELO-SAMPAIO, PASSOS, PRUDENTE, VENEGAS & TORRES-CARVAJAL, 2021
• Atractus vertebrolineatus PRADO, 1941
• Atractus vittatus BOULENGER, 1894
• Atractus wagleri PRADO, 1945
• Atractus zebrinus (JAN, 1862)
• Atretium schistosum (DAUDIN, 1803)
• Atropoides picadoi (DUNN, 1939)
• Austrelaps labialis (JAN, 1859)
• Austrelaps ramsayi (KREFFT, 1864)
• Austrelaps superbus (GÜNTHER, 1858)
• Austroablepharus kinghorni (COPLAND, 1947)
• Azemiops feae BOULENGER, 1888
• Azemiops kharini ORLOV, RYABOV & NGUYEN, 2013
• Bachia dorbignyi (DUMÉRIL & BIBRON, 1839)
• Bachia trisanale (COPE, 1868)
• Baikia africana GRAY, 1865
• Barisia ciliaris (SMITH, 1942)
• Barisia imbricata (WIEGMANN, 1828)
• Barisia planifrons (BOCOURT, 1878)
• Basiliscus basiliscus (LINNAEUS, 1758)
• Basiliscus vittatus WIEGMANN, 1828
• Batagur baska (GRAY, 1831)
• Batagur borneoensis (SCHLEGEL & MÜLLER, 1844)
• Bitia hydroides GRAY, 1842
• Bitis albanica HEWITT, 1937
• Bitis arietans (MERREM, 1820)
• Bitis armata (SMITH, 1826)
• Bitis atropos (LINNAEUS, 1758)
• Bitis caudalis (SMITH, 1839)
• Bitis cornuta (DAUDIN, 1803)
• Bitis gabonica (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Bitis harenna GOWER, WADE, SPAWLS, BÖHME, BUECHLEY, SYKES & COLSTON, 2016
• Bitis heraldica (BOCAGE, 1889)
• Bitis inornata (SMITH, 1838)
• Bitis nasicornis (SHAW & NODDER, 1792)
• Bitis parviocula BÖHME, 1977
• Bitis peringueyi (BOULENGER, 1888)
• Bitis rhinoceros (SCHLEGEL, 1855)
• Bitis rubida BRANCH, 1997
• Bitis schneideri (BOETTGER, 1886)
• Bitis worthingtoni PARKER, 1932
• Bitis xeropaga HAACKE, 1975
• Blythia hmuifang VOGEL, LALREMSANGA & VANLALHRIMA, 2017
• Blythia reticulata (BLYTH, 1855)
• Boa constrictor LINNAEUS, 1758
• Boa imperator DAUDIN, 1803
• Boa orophias LINNAEUS, 1758
• Boa sigma (SMITH, 1943)
• Boaedon angolensis (BOCAGE, 1895)
• Boaedon arabicus PARKER, 1930
• Boaedon branchi HALLERMANN, CERÍACO, SCHMITZ, ERNST, CONRADIE, VERBURGT, MARQUES & BAUER, 2020
• Boaedon capensis DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Boaedon fuliginosus (BOIE, 1827)
• Boaedon geometricus (SCHLEGEL, 1837)
• Boaedon lineatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Boaedon longilineatus TRAPE & MEDIANNIKOV, 2016
• Boaedon maculatus PARKER, 1932
• Boaedon olivaceus (DUMÉRIL, 1856)
• Boaedon paralineatus TRAPE & MEDIANNIKOV, 2016
• Boaedon perisilvestris TRAPE & MEDIANNIKOV, 2016
• Boaedon subflavus TRAPE & MEDIANNIKOV, 2016
• Boaedon subtaeniatus LAURENT, 1954
• Boaedon upembae (LAURENT, 1954)
• Boaedon variegatus (BOCAGE, 1867)
• Boaedon virgatus (HALLOWELL, 1854)
• Bogertophis rosaliae (MOCQUARD, 1899)
• Bogertophis subocularis (BROWN, 1902)
• Boiga andamanensis (WALL, 1909)
• Boiga barnesii (GÜNTHER, 1869)
• Boiga beddomei (WALL, 1909)
• Boiga bengkuluensis ORLOV, KUDRYAVTZEV, RYABOV & SHUMAKOV, 2003
• Boiga bourreti TILLACK, ZIEGLER & KHAC QUYET, 2004
• Boiga ceylonensis (GÜNTHER, 1858)
• Boiga cyanea (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Boiga cynodon (BOIE, 1827)
• Boiga dendrophila (BOIE, 1827)
• Boiga dightoni (BOULENGER, 1894)
• Boiga drapiezii (BOIE, 1827)
• Boiga flaviviridis VOGEL & GANESH, 2013
• Boiga forsteni (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Boiga gocool (GRAY, 1834)
• Boiga guangxiensis WEN, 1998
• Boiga hoeseli RAMADHAN, ISKANDAR & SUBASRI, 2010
• Boiga irregularis (BECHSTEIN, 1802)
• Boiga jaspidea (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Boiga kraepelini STEJNEGER, 1902
• Boiga melanota (BOULENGER, 1896)
• Boiga multifasciata (BLYTH, 1861)
• Boiga multomaculata (BOIE, 1827)
• Boiga nigriceps (GÜNTHER, 1863)
• Boiga nuchalis (GÜNTHER, 1875)
• Boiga philippina (PETERS, 1867)
• Boiga quincunciata (WALL, 1908)
• Boiga saengsomi NUTAPHAND, 1985
• Boiga siamensis NUTAPHAND, 1971
• Boiga stoliczkae (WALL, 1909)
• Boiga tanahjampeana ORLOV & RYABOV, 2002
• Boiga trigonata (SCHNEIDER, 1802)
• Boiga wallachi DAS, 1998
• Boiga westermanni (REINHARDT, 1863)
• Boiruna maculata (BOULENGER, 1896)
• Boiruna sertaneja ZAHER, 1996
• Bolyeria multocarinata (BOIE, 1827)
• Borikenophis portoricensis (REINHARDT & LÜTKEN, 1862)
• Borikenophis sanctaecrucis (COPE, 1862)
• Bothriechis aurifer (SALVIN, 1860)
• Bothriechis bicolor (BOCOURT, 1868)
• Bothriechis guifarroi TOWNSEND, MEDINA-FLORES, WILSON, JADIN & AUSTIN, 2013
• Bothriechis hussaini ARTEAGA, PYRON, BATISTA, VIEIRA, MENESES-PELAYO, SMITH, BARRIO-AMORÓS, KOCH, AGNE, VALENCIA, BUSTAMANTE & HARRIS, 2024
• Bothriechis lateralis PETERS, 1862
• Bothriechis marchi (BARBOUR & LOVERIDGE, 1929)
• Bothriechis nigroadspersus (STEINDACHNER, 1870)
• Bothriechis nigroviridis PETERS, 1859
• Bothriechis nitidus (GÜNTHER, 1859)
• Bothriechis nubestris DOAN, MASON, CASTOE, SASA & PARKINSON, 2016
• Bothriechis rahimi ARTEAGA, PYRON, BATISTA, VIEIRA, MENESES-PELAYO, SMITH, BARRIO-AMORÓS, KOCH, AGNE, VALENCIA, BUSTAMANTE & HARRIS, 2024
• Bothriechis rowleyi (BOGERT, 1968)
• Bothriechis schlegelii (BERTHOLD, 1846)
• Bothriechis supraciliaris (TAYLOR, 1954)
• Bothriechis thalassinus CAMPBELL & SMITH, 2000
• Bothriechis torvus (POSADA-ARANGO, 1889)
• Bothrochilus boa (SCHLEGEL, 1837)
• Bothrocophias andianus (AMARAL, 1923)
• Bothrocophias campbelli (FREIRE-LASCANO, 1991)
• Bothrocophias colombianus (RENDAHL & VESTERGREN, 1940)
• Bothrocophias hyoprora (AMARAL, 1935)
• Bothrocophias lojanus (PARKER, 1930)
• Bothrocophias microphthalmus (COPE, 1875)
• Bothrocophias myersi GUTBERLET & CAMPBELL, 2001
• Bothrolycus ater GÜNTHER, 1874
• Bothrophthalmus brunneus GÜNTHER, 1863
• Bothrophthalmus lineatus (PETERS, 1863)
• Bothrops alternatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Bothrops ammodytoides LEYBOLD, 1873
• Bothrops asper (GARMAN, 1883)
• Bothrops atrox (LINNAEUS, 1758)
• Bothrops bilineatus (WIED-NEUWIED, 1821)
• Bothrops brazili HOGE, 1954
• Bothrops chloromelas (BOULENGER, 1912)
• Bothrops cotiara (GOMES, 1913)
• Bothrops diporus COPE, 1862
• Bothrops erythromelas (AMARAL, 1923)
• Bothrops fonsecai HOGE & BELLUOMINI, 1959
• Bothrops insularis (AMARAL, 1922)
• Bothrops itapetiningae (BOULENGER, 1907)
• Bothrops jararaca (WIED-NEUWIED, 1824)
• Bothrops jararacussu LACERDA, 1884
• Bothrops jonathani HARVEY, 1994
• Bothrops leucurus WAGLER, 1824
• Bothrops lutzi (MIRANDA-RIBEIRO, 1915)
• Bothrops marajoensis HOGE, 1966
• Bothrops mattogrossensis AMARAL, 1925
• Bothrops moojeni HOGE, 1966
• Bothrops muriciensis FERRAREZZI & FREIRE, 2001
• Bothrops neuwiedi WAGLER, 1824
• Bothrops oligolepis (WERNER, 1901)
• Bothrops pauloensis AMARAL, 1925
• Bothrops pictus (TSCHUDI, 1845)
• Bothrops pirajai AMARAL, 1923
• Bothrops pubescens (COPE, 1870)
• Bothrops pulcher (PETERS, 1862)
• Bothrops punctatus (GARCIA, 1896)
• Bothrops sanctaecrucis HOGE, 1966
• Bothrops taeniatus WAGLER, 1824
• Bothrops venezuelensis SANDNER-MONTILLA, 1952
• Brachyophis cornii SCORTECCI, 1932
• Brachyophis krameri LANZA, 1966
• Brachyophis revoili MOCQUARD, 1888
• Brachyurophis approximans (GLAUERT, 1954)
• Brachyurophis roperi (KINGHORN, 1931)
• Brachyurophis semifasciatus GÜNTHER, 1863
• Bradypodion gutturale (SMITH, 1849)
• Bradypodion setaroi RAW, 1976
• Bradypodion taeniabronchum (SMITH, 1831)
• Bradypodion thamnobates RAW, 1976
• Bradypodion ventrale (GRAY, 1845)
• Brasiliscincus agilis (RADDI, 1823)
• Brasiliscincus heathi (SCHMIDT & INGER, 1951)
• Broadleysaurus major (DUMÉRIL, 1851)
• Bronchocela cristatella (KUHL, 1820)
• Brygophis coulangesi (DOMERGUE, 1988)
• Buhoma depressiceps (WERNER, 1897)
• Buhoma marlieri (LAURENT, 1956)
• Buhoma procterae (LOVERIDGE, 1922)
• Buhoma vauerocegae (TORNIER, 1902)
• Bungarus bungaroides (CANTOR, 1839)
• Bungarus caeruleus (SCHNEIDER, 1801)
• Bungarus candidus (LINNAEUS, 1758)
• Bungarus ceylonicus GÜNTHER, 1864
• Bungarus fasciatus (SCHNEIDER, 1801)
• Bungarus flaviceps REINHARDT, 1843
• Bungarus lividus CANTOR, 1839
• Bungarus multicinctus BLYTH, 1861
• Bungarus niger WALL, 1908
• Bungarus sindanus BOULENGER, 1897
• Bungarus slowinskii KUCH, KIZIRIAN, NGUYEN, LAWSON, DONNELLY & MEBS, 2005
• Bungarus walli WALL, 1907
• Bungarus wanghaotingi POPE, 1928
• Bunopus blanfordii STRAUCH, 1887
• Bunopus tuberculatus BLANFORD, 1874
• Caaeteboia amarali (WETTSTEIN, 1930)
• Caaeteboia gaeli MONTINGELLI, BARBO, PEREIRA-FILHO, SANTANA, RODRIGUES-FRANÇA, GRAZZIOTIN & ZAHER, 2020
• Cachryx defensor COPE, 1866
• Cacophis harriettae KREFFT, 1869
• Cacophis krefftii GÜNTHER, 1863
• Cacophis squamulosus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Calabaria reinhardtii (SCHLEGEL, 1851)
• Calamaria abramovi ORLOV, 2009
• Calamaria abstrusa INGER & MARX, 1965
• Calamaria acutirostris BOULENGER, 1896
• Calamaria albiventer (GRAY, 1834)
• Calamaria alidae BOULENGER, 1920
• Calamaria andersoni YANG & ZHENG, 2018
• Calamaria apraeocularis SMITH, 1927
• Calamaria battersbyi INGER & MARX, 1965
• Calamaria berezowskii GÜNTHER, 1896
• Calamaria bicolor DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Calamaria buchi MARX & INGER, 1955
• Calamaria crassa LIDTH DE JEUDE, 1922
• Calamaria doederleini GOUGH, 1902
• Calamaria eiselti INGER & MARX, 1965
• Calamaria everetti BOULENGER, 1893
• Calamaria forcarti INGER & MARX, 1965
• Calamaria gervaisii DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Calamaria gialaiensis ZIEGLER, SANG & TRUONG, 2008
• Calamaria grabowskyi FISCHER, 1885
• Calamaria griswoldi LOVERIDGE, 1938
• Calamaria ingeri GRISMER, KAISER & YAAKOB, 2004
• Calamaria javanica BOULENGER, 1891
• Calamaria lateralis MOCQUARD, 1890
• Calamaria lautensis DE ROOIJ, 1917
• Calamaria leucogaster BLEEKER, 1860
• Calamaria linnaei BOIE, 1827
• Calamaria lovii BOULENGER, 1887
• Calamaria lumbricoidea BOIE, 1827
• Calamaria margaritophora BLEEKER, 1860
• Calamaria mecheli SCHENKEL, 1901
• Calamaria modesta DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Calamaria pavimentata DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Calamaria pfefferi STEJNEGER, 1901
• Calamaria prakkei LIDTH DE JEUDE, 1893
• Calamaria schlegeli DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Calamaria schmidti MARX & INGER, 1955
• Calamaria septentrionalis BOULENGER, 1890
• Calamaria suluensis TAYLOR, 1922
• Calamaria sumatrana EDELING, 1870
• Calamaria thanhi ZIEGLER & QUYET, 2005
• Calamaria ulmeri SACKETT, 1940
• Calamaria virgulata BOIE, 1827
• Calamaria yunnanensis CHERNOV, 1962
• Calamophis jobiensis MEYER, 1874
• Calamorhabdium acuticeps AHL, 1933
• Calliophis bibroni (JAN, 1858)
• Calliophis bivirgatus (BOIE, 1827)
• Calliophis castoe SMITH, OGALE, DEEPAK & GIRI, 2012
• Calliophis gracilis GRAY, 1834
• Calliophis intestinalis (LAURENTI, 1768)
• Calliophis maculiceps (GÜNTHER, 1858)
• Calliophis melanurus (SHAW, 1802)
• Calliophis nigrescens (GÜNTHER, 1862)
• Calliophis nigrotaeniatus PETERS, 1863
• Calliophis philippinus (GÜNTHER, 1864)
• Callisaurus draconoides BLAINVILLE, 1835
• Calloselasma rhodostoma (KUHL, 1824)
• Calotes emma GRAY, 1845
• Calotes mystaceus DUMÉRIL & BIBRON, 1837
• Calotes versicolor (DAUDIN, 1802)
• Calyptotis scutirostrum (PETERS, 1874)
• Candoia aspera (GÜNTHER, 1877)
• Candoia bibroni (DUMÉRIL & BIBRON, 1844)
• Candoia carinata (SCHNEIDER, 1801)
• Candoia paulsoni (STULL, 1956)
• Candoia superciliosa (GÜNTHER, 1863)
• Cantoria violacea GIRARD, 1858
• Caraiba andreae (REINHARDT & LÜTKEN, 1862)
• Caretta caretta (LINNAEUS, 1758)
• Carettochelys insculpta RAMSAY, 1886
• Carphodactylus laevis GÜNTHER, 1897
• Carphophis amoenus (SAY, 1825)
• Carphophis vermis (KENNICOTT, 1859)
• Casarea dussumieri (SCHLEGEL, 1837)
• Cathetorhinus melanocephalus DUMÉRIL & BIBRON, 1844
• Causus bilineatus BOULENGER, 1905
• Causus defilippii (JAN, 1863)
• Causus lichtensteinii (JAN, 1859)
• Causus maculatus (HALLOWELL, 1842)
• Causus resimus (PETERS, 1862)
• Causus rhombeatus (LICHTENSTEIN, 1823)
• Cemophora coccinea (BLUMENBACH, 1788)
• Cemophora lineri WILLIAMS, BROWN & WILSON, 1966
• Cerastes cerastes (LINNAEUS, 1758)
• Cerastes gasperettii LEVITON & ANDERSON, 1967
• Cerastes vipera (LINNAEUS, 1758)
• Cerberus australis (GRAY, 1842)
• Cerberus rynchops (SCHNEIDER, 1799)
• Cerberus schneiderii (SCHLEGEL, 1837)
• Cercophis auratus (SCHLEGEL, 1837)
• Cercosaura argulus PETERS, 1862
• Cercosaura bassleri RUIBAL, 1952
• Cercosaura eigenmanni (GRIFFIN, 1917)
• Cerrophidion godmani (GÜNTHER, 1863)
• Cerrophidion sasai JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
• Cerrophidion wilsoni JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
• Chalcides ocellatus (FORSKÅL, 1775)
• Chamaeleo chamaeleon (LINNAEUS, 1758)
• Chamaeleo dilepis LEACH, 1819
• Chamaeleo gracilis HALLOWELL, 1844
• Chamaeleo laevigatus GRAY, 1863
• Chamaeleo namaquensis SMITH, 1831
• Chamaelycus christyi BOULENGER, 1919
• Chamaelycus fasciatus (GÜNTHER, 1858)
• Chamaelycus parkeri (ANGEL, 1934)
• Chamaesaura aenea (FITZINGER, 1843)
• Chamaesaura anguina LINNAEUS, 1758
• Chamaesaura miopropus BOULENGER, 1895
• Charina bottae (BLAINVILLE, 1835)
• Chelonia mydas (LINNAEUS, 1758)
• Chelydra serpentina (LINNAEUS, 1758)
• Chersobius boulengeri (DUERDEN, 1906)
• Chersobius signatus (GMELIN, 1789)
• Chersobius solus (BRANCH, 2007)
• Chersodromus liebmanni REINHARDT, 1861
• Chersodromus rubriventris (TAYLOR, 1949)
• Chilabothrus angulifer (COCTEAU & BIBRON, 1840)
• Chilabothrus argentum REYNOLDS, PUENTE-ROLÓN, GENEVA, AVILES-RODRIGUEZ & HERRMANN, 2016
• Chilabothrus chrysogaster (COPE, 1871)
• Chilabothrus exsul (NETTING & GOIN, 1944)
• Chilabothrus fordii (GÜNTHER, 1861)
• Chilabothrus gracilis FISCHER, 1888
• Chilabothrus inornatus (REINHARDT, 1843)
• Chilabothrus monensis (ZENNECK, 1898)
• Chilabothrus schwartzi (BUDEN, 1975)
• Chilabothrus striatus (FISCHER, 1856)
• Chilabothrus strigilatus (COPE, 1862)
• Chilabothrus subflavus (STEJNEGER, 1901)
• Chilorhinophis butleri WERNER, 1907
• Chilorhinophis gerardi (BOULENGER, 1913)
• Chironius bicarinatus (WIED-NEUWIED, 1820)
• Chironius carinatus (LINNAEUS, 1758)
• Chironius challenger KOK, 2010
• Chironius cochranae HOGE & ROMANO, 1969
• Chironius dixoni WIEST, 1978
• Chironius exoletus (LINNAEUS, 1758)
• Chironius flavolineatus (BOETTGER, 1885)
• Chironius flavopictus (WERNER, 1909)
• Chironius foveatus BAILEY, 1955
• Chironius fuscus (LINNAEUS, 1758)
• Chironius grandisquamis (PETERS, 1869)
• Chironius laevicollis (WIED-NEUWIED, 1824)
• Chironius leucometapus DIXON, WIEST & CEI, 1993
• Chironius maculoventris DIXON, WIEST & CEI, 1993
• Chironius monticola ROZE, 1952
• Chironius multiventris SCHMIDT & WALKER, 1943
• Chironius quadricarinatus (BOIE, 1827)
• Chironius scurrula (WAGLER, 1824)
• Chironius septentrionalis DIXON, WIEST & CEI, 1993
• Chironius spixii (HALLOWELL, 1845)
• Chironius vincenti (BOULENGER, 1891)
• Chitra chitra NUTAPHAND, 1986
• Chitra indica (GRAY, 1831)
• Chitra vandijki MCCORD & PRITCHARD, 2003
• Chlamydosaurus kingii GRAY, 1825
• Chlorosoma viridissimum (LINNAEUS, 1758)
• Chondrodactylus angulifer PETERS, 1870
• Chondrodactylus bibronii (SMITH, 1846)
• Chondrodactylus fitzsimonsi (LOVERIDGE, 1947)
• Chondrodactylus laevigatus (FISCHER, 1888)
• Chondrodactylus pulitzerae (SCHMIDT, 1933)
• Chondrodactylus turneri (GRAY, 1864)
• Chrysemys picta (SCHNEIDER, 1783)
• Chrysopelea ornata (SHAW, 1802)
• Chrysopelea paradisi BOIE, 1827
• Chrysopelea pelias (LINNAEUS, 1758)
• Chrysopelea rhodopleuron BOIE, 1827
• Chrysopelea taprobanica SMITH, 1943
• Clelia clelia (DAUDIN, 1803)
• Clelia equatoriana (AMARAL, 1924)
• Clelia plumbea (WIED-NEUWIED, 1820)
• Clelia scytalina (COPE, 1867)
• Clonophis kirtlandii (KENNICOTT, 1856)
• Cnemaspis andersonii (ANNANDALE, 1905)
• Cnemaspis gracilis (BEDDOME, 1870)
• Cnemaspis kandiana (KELAART, 1852)
• Cnemaspis siamensis (SMITH, 1925)
• Cnemaspis wicksi (STOLICZKA, 1873)
• Cnemidophorus lemniscatus (LINNAEUS, 1758)
• Coelognathus erythrurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Coelognathus flavolineatus (SCHLEGEL, 1837)
• Coelognathus helena (DAUDIN, 1803)
• Coelognathus radiatus (BOIE, 1827)
• Coelognathus subradiatus (SCHLEGEL, 1837)
• Coleodactylus meridionalis BOULENGER, 1888
• Coleonyx brevis STEJNEGER, 1893
• Coleonyx variegatus (BAIRD, 1858)
• Collorhabdium williamsoni SMEDLEY, 1932
• Coluber constrictor LINNAEUS, 1758
• Compsophis albiventris MOCQUARD, 1894
• Compsophis boulengeri (PERACCA, 1892)
• Compsophis infralineatus (GÜNTHER, 1882)
• Compsophis vinckei (DOMERGUE, 1988)
• Comptus alloeides (SCHWARTZ, 1964)
• Comptus stenurus (COPE, 1863)
• Comptus weinlandi (COPE, 1868)
• Coniophanes alvarezi CAMPBELL, 1989
• Coniophanes bipunctatus (GÜNTHER, 1858)
• Coniophanes dromiciformis (PETERS, 1863)
• Coniophanes fissidens (GÜNTHER, 1858)
• Coniophanes imperialis (BAIRD & GIRARD, 1859)
• Coniophanes joanae MYERS, 1966
• Coniophanes lateritius COPE, 1862
• Coniophanes melanocephalus (PETERS, 1870)
• Coniophanes meridanus SCHMIDT & ANDREWS, 1936
• Coniophanes piceivittis COPE, 1870
• Coniophanes quinquevittatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Coniophanes schmidti BAILEY, 1937
• Coniophanes taeniata (PETERS, 1870)
• Coniophanes taylori HALL, 1951
• Conophis lineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Conophis vittatus PETERS, 1860
• Conopsis amphisticha (SMITH & LAUFE, 1945)
• Conopsis biserialis (TAYLOR & SMITH, 1942)
• Conopsis lineata (KENNICOTT, 1859)
• Conopsis nasus (GÜNTHER, 1858)
• Copeoglossum nigropunctatum (SPIX, 1825)
• Cophosaurus texanus TROSCHEL, 1852
• Corallus annulatus (COPE, 1875)
• Corallus batesii (GRAY, 1860)
• Corallus blombergi (RENDAHL & VESTERGREN, 1940)
• Corallus caninus (LINNAEUS, 1758)
• Corallus cookii GRAY, 1842
• Corallus cropanii (HOGE, 1953)
• Corallus grenadensis (BARBOUR, 1914)
• Corallus hortulana (LINNAEUS, 1758)
• Corallus ruschenbergerii (COPE, 1875)
• Cordylosaurus subtessellatus (SMITH, 1844)
• Cordylus cordylus (LINNAEUS, 1758)
• Cordylus machadoi LAURENT, 1964
• Cordylus nyikae BROADLEY & MOUTON, 2000
• Cordylus tropidosternum (COPE, 1869)
• Cordylus vittifer (REICHENOW, 1887)
• Coronelaps lepidus (REINHARDT, 1861)
• Coronella austriaca LAURENTI, 1768
• Coronella girondica (DAUDIN, 1803)
• Corytophanes cristatus (MERREM, 1820)
• Craspedocephalus anamallensis (GÜNTHER, 1864)
• Craspedocephalus andalasensis (DAVID, VOGEL, VIJAYAKUMAR & VIDAL, 2006)
• Craspedocephalus borneensis (PETERS, 1872)
• Craspedocephalus brongersmai (HOGE, 1969)
• Craspedocephalus gramineus (SHAW, 1802)
• Craspedocephalus macrolepis (BEDDOME, 1862)
• Craspedocephalus malabaricus (JERDON, 1854)
• Craspedocephalus puniceus (BOIE, 1827)
• Craspedocephalus strigatus (GRAY, 1842)
• Craspedocephalus trigonocephalus (DONNDORFF, 1798)
• Craspedocephalus wiroti (TRUTNAU, 1981)
• Crenadactylus horni (LUCAS & FROST, 1895)
• Crenadactylus naso STORR, 1978
• Crenadactylus ocellatus (GRAY, 1845)
• Crisantophis nevermanni (DUNN, 1937)
• Crocodylus moreletii DUMÉRIL & BIBRON, 1851
• Crocodylus niloticus LAURENTI, 1768
• Crocodylus porosus SCHNEIDER, 1801
• Crocodylus siamensis SCHNEIDER, 1801
• Crotalus adamanteus PALISOT DE BEAUVOIS, 1799
• Crotalus angelensis KLAUBER, 1963
• Crotalus aquilus KLAUBER, 1952
• Crotalus armstrongi CAMPBELL, 1979
• Crotalus atrox BAIRD & GIRARD, 1853
• Crotalus basiliscus (COPE, 1864)
• Crotalus brunneus HARRIS & SIMMONS, 1978
• Crotalus campbelli BRYSON JR, LINKEM, DORCAS, LATHROP, JONES, ALVARADO-DÍAZ, GRÜNWALD & MURPHY, 2014
• Crotalus catalinensis CLIFF, 1954
• Crotalus cerastes HALLOWELL, 1854
• Crotalus cerberus (COUES, 1875)
• Crotalus concolor WOODBURY, 1929
• Crotalus culminatus KLAUBER, 1952
• Crotalus durissus LINNAEUS, 1758
• Crotalus enyo (COPE, 1861)
• Crotalus ericsmithi CAMPBELL & FLORES-VILLELA, 2008
• Crotalus estebanensis KLAUBER, 1949
• Crotalus exiguus CAMPBELL & ARMSTRONG, 1979
• Crotalus helleri MEEK, 1905
• Crotalus horridus LINNAEUS, 1758
• Crotalus intermedius TROSCHEL, 1865
• Crotalus lannomi TANNER, 1966
• Crotalus lepidus (KENNICOTT, 1861)
• Crotalus lorenzoensis RADCLIFF & MASLIN, 1975
• Crotalus lutosus KLAUBER, 1930
• Crotalus mictlantecuhtli CARBAJAL-MÁRQUEZ, CEDEÑO-VÁZQUEZ, MARTÍNEZ-ARCE, NERI-CASTRO & MACHKOUR-M’RABET, 2020
• Crotalus mitchellii (COPE, 1861)
• Crotalus molossus BAIRD & GIRARD, 1853
• Crotalus morulus KLAUBER, 1952
• Crotalus oreganus HOLBROOK, 1840
• Crotalus ornatus HALLOWELL, 1854
• Crotalus polisi MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
• Crotalus polystictus (COPE, 1865)
• Crotalus pricei VAN DENBURGH, 1895
• Crotalus pusillus KLAUBER, 1952
• Crotalus pyrrhus (COPE, 1866)
• Crotalus ravus COPE, 1865
• Crotalus ruber COPE, 1892
• Crotalus scutulatus (KENNICOTT, 1861)
• Crotalus simus LATREILLE, 1801
• Crotalus stejnegeri DUNN, 1919
• Crotalus tancitarensis ALVARADO-DÍAZ & CAMPBELL, 2004
• Crotalus thalassoporus MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
• Crotalus tigris KENNICOTT, 1859
• Crotalus tlaloci BRYSON, LINKEM, DORCAS, LATHROP, JONES, ALVARADO-DÍAZ, GRÜNWALD & MURPHY, 2014
• Crotalus totonacus GLOYD & KAUFFELD, 1940
• Crotalus transversus TAYLOR, 1944
• Crotalus triseriatus (WAGLER, 1830)
• Crotalus tzabcan KLAUBER, 1952
• Crotalus unicolor LIDTH DE JEUDE, 1887
• Crotalus viridis (RAFINESQUE, 1818)
• Crotalus willardi MEEK, 1905
• Crotaphopeltis braestrupi RASMUSSEN, 1985
• Crotaphopeltis degeni (BOULENGER, 1906)
• Crotaphopeltis hippocrepis (REINHARDT, 1843)
• Crotaphopeltis hotamboeia (LAURENTI, 1768)
• Crotaphopeltis tornieri (WERNER, 1908)
• Crotaphytus bicinctores SMITH & TANNER, 1972
• Crotaphytus collaris (SAY, 1822)
• Crotaphytus nebrius AXTELL & MONTANUCCI, 1977
• Crotaphytus reticulatus BAIRD, 1858
• Crotaphytus vestigium SMITH & TANNER, 1972
• Cryptactites peringueyi (BOULENGER, 1910)
• Cryptagama aurita (STORR, 1981)
• Cryptoblepharus boutonii (DES JARDIN, 1831)
• Cryptophis incredibilis (WELLS & WELLINGTON, 1985)
• Cryptophis nigrescens (GÜNTHER, 1862)
• Ctenophorus adelaidensis (GRAY, 1841)
• Ctenophorus badius (STORR, 1965)
• Ctenophorus butlerorum (STORR, 1977)
• Ctenophorus caudicinctus (GÜNTHER, 1875)
• Ctenophorus chapmani (STORR, 1977)
• Ctenophorus clayi (STORR, 1967)
• Ctenophorus cristatus (GRAY, 1841)
• Ctenophorus decresii (DUMÉRIL & BIBRON, 1837)
• Ctenophorus dualis (STORR, 1965)
• Ctenophorus femoralis (STORR, 1965)
• Ctenophorus fordi (STORR, 1965)
• Ctenophorus graafi (STORR, 1967)
• Ctenophorus griseus (STORR, 1965)
• Ctenophorus infans (STORR, 1967)
• Ctenophorus isolepis (FISCHER, 1881)
• Ctenophorus maculatus (GRAY, 1831)
• Ctenophorus mckenziei (STORR, 1981)
• Ctenophorus nguyarna DOUGHTY, MARYAN, MELVILLE & AUSTIN, 2007
• Ctenophorus ornatus (GRAY, 1845)
• Ctenophorus parviceps (STORR, 1964)
• Ctenophorus pictus (PETERS, 1866)
• Ctenophorus reticulatus (GRAY, 1845)
• Ctenophorus rubens (STORR, 1965)
• Ctenophorus salinarum (STORR, 1966)
• Ctenophorus scutulatus (STIRLING & ZIETZ, 1893)
• Ctenophorus slateri (STORR, 1967)
• Ctenophorus tjantjalka JOHNSTON, 1992
• Ctenophorus yinnietharra (STORR, 1981)
• Ctenotus storri RANKIN, 1978
• Cubatyphlops biminiensis (RICHMOND, 1955)
• Cubatyphlops caymanensis (SACKETT, 1940)
• Cubatyphlops notorachius (THOMAS & HEDGES, 2007)
• Cubatyphlops perimychus (THOMAS & HEDGES, 2007)
• Cubophis brooksi (BARBOUR, 1914)
• Cubophis cantherigerus (BIBRON, 1843)
• Cubophis vudii (COPE, 1862)
• Cuora amboinensis (DAUDIN, 1801)
• Cuora couro (SCHWEIGGER, 1812)
• Cuora lineata (MCCORD & PHILIPPEN, 1998)
• Cyclemys dentata (GRAY, 1831)
• Cyclocorus lineatus (REINHARDT, 1843)
• Cyclocorus nuchalis TAYLOR, 1923
• Cycloderma frenatum PETERS, 1854
• Cylindrophis boulengeri ROUX, 1911
• Cylindrophis isolepis BOULENGER, 1896
• Cylindrophis jodiae AMARASINGHE, INEICH, CAMPBELL & HALLERMANN, 2015
• Cylindrophis maculatus (LINNAEUS, 1758)
• Cylindrophis melanotus WAGLER, 1828
• Cylindrophis ruffus (LAURENTI, 1768)
• Cynisca haugi (MOCQUARD, 1904)
• Cynisca leucura (DUMÉRIL & BIBRON, 1839)
• Cyrtodactylus brevipalmatus (SMITH, 1923)
• Cyrtodactylus consobrinus (PETERS, 1871)
• Cyrtodactylus intermedius (SMITH, 1917)
• Cyrtodactylus peguensis (BOULENGER, 1893)
• Cyrtodactylus pulchellus GRAY, 1827
• Cyrtodactylus quadrivirgatus TAYLOR, 1962
• Cyrtodactylus soba BATUWITA & BAHIR, 2005
• Cyrtodactylus varadgirii AGARWAL, MIRZA, PAL, MADDOCK, MISHRA & BAUER, 2016
• Cyrtopodion scabrum (HEYDEN, 1827)
• Daboia mauritanica (GRAY, 1849)
• Daboia palaestinae (WERNER, 1938)
• Daboia russelii (SHAW & NODDER, 1797)
• Daboia siamensis (SMITH, 1917)
• Dalophia ellenbergeri (ANGEL, 1920)
• Dalophia longicauda (WERNER, 1915)
• Dalophia pistillum (BOETTGER, 1895)
• Dasia olivacea GRAY, 1839
• Dasypeltis abyssina (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Dasypeltis arabica BROADLEY & BATES, 2018
• Dasypeltis atra STERNFELD, 1912
• Dasypeltis bazi SALEH & SARHAN, 2016
• Dasypeltis confusa TRAPE & MANÉ, 2006
• Dasypeltis crucifera BATES, 2018
• Dasypeltis fasciata SMITH, 1849
• Dasypeltis gansi TRAPE & MANÉ, 2006
• Dasypeltis inornata SMITH, 1849
• Dasypeltis medici BIANCONI, 1859
• Dasypeltis palmarum (LEACH, 1818)
• Dasypeltis sahelensis TRAPE & MANÉ, 2006
• Dasypeltis scabra (LINNAEUS, 1758)
• Dasypeltis taylori BATES & BROADLEY, 2018
• Deinagkistrodon acutus (GÜNTHER, 1888)
• Delma fraseri GRAY, 1831
• Delma petersoni SHEA, 1991
• Delma tincta DE VIS, 1888
• Demansia angusticeps (MACLEAY, 1888)
• Demansia calodera STORR, 1978
• Demansia olivacea (GRAY, 1842)
• Demansia papuensis (MACLEAY, 1877)
• Demansia psammophis (SCHLEGEL, 1837)
• Demansia quaesitor SHEA, 2007
• Demansia reticulata (GRAY, 1842)
• Dendrelaphis andamanensis (ANDERSON, 1871)
• Dendrelaphis ashoki VOGEL & VAN ROOIJEN, 2011
• Dendrelaphis bifrenalis (BOULENGER, 1890)
• Dendrelaphis biloreatus WALL, 1908
• Dendrelaphis calligaster (GÜNTHER, 1867)
• Dendrelaphis caudolineatus (GRAY, 1834)
• Dendrelaphis caudolineolatus (GÜNTHER, 1869)
• Dendrelaphis chairecacos (BOIE, 1827)
• Dendrelaphis cyanochloris (WALL, 1921)
• Dendrelaphis flavescens GAULKE, 1994
• Dendrelaphis formosus (BOIE, 1827)
• Dendrelaphis fuliginosus GRIFFIN, 1909
• Dendrelaphis gastrostictus (BOULENGER, 1894)
• Dendrelaphis girii VOGEL & VAN ROOIJEN, 2011
• Dendrelaphis grandoculis (BOULENGER, 1890)
• Dendrelaphis grismeri VOGEL & VAN ROOIJEN, 2008
• Dendrelaphis haasi VAN ROOIJEN & VOGEL, 2008
• Dendrelaphis hollinrakei LAZELL, 2002
• Dendrelaphis humayuni TIWARI & BISWAS, 1973
• Dendrelaphis inornatus BOULENGER, 1897
• Dendrelaphis kopsteini VOGEL & VAN ROOIJEN, 2007
• Dendrelaphis levitoni VAN ROOIJEN & VOGEL, 2012
• Dendrelaphis lineolatus (JACQUINOT & GUICHENOT, 1853)
• Dendrelaphis lorentzii (LIDTH DE JEUDE, 1911)
• Dendrelaphis luzonensis LEVITON, 1961
• Dendrelaphis marenae VOGEL & VAN ROOIJEN, 2008
• Dendrelaphis modestus BOULENGER, 1894
• Dendrelaphis ngansonensis (BOURRET, 1935)
• Dendrelaphis nigroserratus VOGEL, VAN ROOIJEN & HAUSER, 2012
• Dendrelaphis oliveri (TAYLOR, 1950)
• Dendrelaphis papuensis BOULENGER, 1895
• Dendrelaphis philippinensis (GÜNTHER, 1879)
• Dendrelaphis pictus (GMELIN, 1789)
• Dendrelaphis proarchos (WALL, 1909)
• Dendrelaphis punctulatus (GRAY, 1826)
• Dendrelaphis schokari (KUHL, 1820)
• Dendrelaphis striatus (COHN, 1905)
• Dendrelaphis striolatus (PETERS, 1867)
• Dendrelaphis subocularis (BOULENGER, 1888)
• Dendrelaphis terrificus (PETERS, 1872)
• Dendrelaphis tristis (DAUDIN, 1803)
• Dendrelaphis underwoodi VAN ROOIJEN & VOGEL, 2008
• Dendrelaphis walli VOGEL & VAN ROOIJEN, 2011
• Dendroaspis angusticeps (SMITH, 1849)
• Dendroaspis jamesoni (TRAILL, 1843)
• Dendroaspis polylepis GÜNTHER, 1864
• Dendroaspis viridis (HALLOWELL, 1844)
• Dendrolycus elapoides (GÜNTHER, 1874)
• Dendrophidion apharocybe CADLE, 2012
• Dendrophidion atlantica FREIRE, CARAMASCHI & GONÇALVES, 2010
• Dendrophidion bivittatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Dendrophidion boshelli DUNN, 1944
• Dendrophidion clarkii DUNN, 1933
• Dendrophidion crybelum CADLE, 2012
• Dendrophidion dendrophis (SCHLEGEL, 1837)
• Dendrophidion graciliverpa CADLE, 2012
• Dendrophidion nuchale (PETERS, 1863)
• Dendrophidion paucicarinatum (COPE, 1894)
• Dendrophidion percarinatum (COPE, 1893)
• Dendrophidion prolixum CADLE, 2012
• Dendrophidion rufiterminorum CADLE & SAVAGE, 2012
• Dendrophidion vinitor SMITH, 1941
• Denisonia maculata (STEINDACHNER, 1867)
• Dermatemys mawii GRAY, 1847
• Dermochelys coriacea (VANDELLI, 1761)
• Diadophis punctatus (LINNAEUS, 1766)
• Diaphorolepis laevis WERNER, 1923
• Diaphorolepis wagneri JAN, 1863
• Dibamus bogadeki DAREVSKY, 1992
• Dibernardia affinis (GÜNTHER, 1858)
• Dibernardia bilineata (FISCHER, 1885)
• Dibernardia persimilis (COPE, 1869)
• Dibernardia poecilopogon (COPE, 1863)
• Dieurostus dussumieri (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Diploderma batangense (LI, DENG, WU & WANG, 2001)
• Diploderma laeviventre (WANG, JIANG, SILER & CHE, 2016)
• Diploderma vela (WANG, JIANG & CHE, 2015)
• Diploderma yulongense (MANTHEY, DENZER, HOU & WANG, 2012)
• Diploglossus fasciatus (GRAY, 1831)
• Diplometopon zarudnyi NIKOLSKY, 1907
• Diporiphora adductus DOUGHTY, KEALLEY & MELVILLE, 2012
• Diporiphora albilabris STORR, 1974
• Diporiphora bilineata GRAY, 1842
• Diporiphora convergens STORR, 1974
• Diporiphora lalliae STORR, 1974
• Diporiphora magna STORR, 1974
• Diporiphora paraconvergens DOUGHTY, KEALLEY & MELVILLE, 2012
• Diporiphora pindan STORR, 1980
• Diporiphora reginae GLAUERT, 1959
• Diporiphora superba STORR, 1974
• Diporiphora valens STORR, 1980
• Diporiphora vescus DOUGHTY, KEALLEY & MELVILLE, 2012
• Diporiphora winneckei LUCAS & FROST, 1896
• Dipsadoboa aulica (GÜNTHER, 1864)
• Dipsadoboa brevirostris (STERNFELD, 1908)
• Dipsadoboa duchesnii (BOULENGER, 1901)
• Dipsadoboa flavida (BROADLEY & STEVENS, 1971)
• Dipsadoboa kageleri UTHMÖLLER, 1939
• Dipsadoboa montisilva BRANCH, CONRADIE & TOLLEY, 2019
• Dipsadoboa shrevei (LOVERIDGE, 1932)
• Dipsadoboa underwoodi RASMUSSEN, 1993
• Dipsadoboa unicolor GÜNTHER, 1858
• Dipsadoboa viridis (PETERS, 1869)
• Dipsadoboa weileri (LINDHOLM, 1905)
• Dipsadoboa werneri (BOULENGER, 1897)
• Dipsas albifrons (SAUVAGE, 1884)
• Dipsas alternans (FISCHER, 1885)
• Dipsas andiana (BOULENGER, 1896)
• Dipsas articulata (COPE, 1868)
• Dipsas bicolor (GÜNTHER, 1895)
• Dipsas bobridgelyi (ARTEAGA, SALAZAR-VALENZUELA, MEBERT, PEÑAFIEL, AGUIAR, SÁNCHEZ-NIVICELA, PYRON, COLSTON, CISNEROS-HEREDIA, YÁNEZ-MUÑOZ, VENEGAS, GUAYASAMIN & TORRES-CARVAJAL, 2018)
• Dipsas brevifacies (COPE, 1866)
• Dipsas bucephala (SHAW, 1802)
• Dipsas catesbyi (SENTZEN, 1796)
• Dipsas cisticeps (BOETTGER, 1885)
• Dipsas copei (GÜNTHER, 1872)
• Dipsas elegans (BOULENGER, 1896)
• Dipsas ellipsifera (BOULENGER, 1898)
• Dipsas gaigeae (OLIVER, 1937)
• Dipsas gracilis (BOULENGER, 1902)
• Dipsas indica LAURENTI, 1768
• Dipsas jamespetersi (ORCÉS & ALMENDÁRIZ, 1989)
• Dipsas klebbai ARTEAGA, SALAZAR-VALENZUELA, MEBERT, PEÑAFIEL, AGUIAR, SÁNCHEZ-NIVICELA, PYRON, COLSTON, CISNEROS-HEREDIA, YÁNEZ-MUÑOZ, VENEGAS, GUAYASAMIN & TORRES-CARVAJAL, 2018
• Dipsas latifrontalis (BOULENGER, 1905)
• Dipsas lavillai (SCROCCHI, PORTO & REY, 1993)
• Dipsas maxillaris (WERNER, 1910)
• Dipsas mikanii SCHLEGEL, 1837
• Dipsas neuwiedi (IHERING, 1911)
• Dipsas nicholsi (DUNN, 1933)
• Dipsas oligozonata (ORCÉS & ALMENDÁRIZ, 1989)
• Dipsas oneilli (ROSSMAN & THOMAS, 1979)
• Dipsas oreas (COPE, 1868)
• Dipsas oswaldobaezi ARTEAGA, SALAZAR-VALENZUELA, MEBERT, PEÑAFIEL, AGUIAR, SÁNCHEZ-NIVICELA, PYRON, COLSTON, CISNEROS-HEREDIA, YÁNEZ-MUÑOZ, VENEGAS, GUAYASAMIN & TORRES-CARVAJAL, 2018
• Dipsas pakaraima MACCULLOCH & LATHROP, 2004
• Dipsas palmeri (BOULENGER, 1912)
• Dipsas pavonina SCHLEGEL, 1837
• Dipsas peruana (BOETTGER, 1898)
• Dipsas praeornata (WERNER, 1909)
• Dipsas pratti (BOULENGER, 1897)
• Dipsas sanctijoannis (BOULENGER, 1911)
• Dipsas sazimai FERNANDES, MARQUES & ARGÔLO, 2010
• Dipsas schunkii (BOULENGER, 1908)
• Dipsas temporalis (WERNER, 1909)
• Dipsas tenuissima TAYLOR, 1954
• Dipsas trinitatis PARKER, 1926
• Dipsas turgida (COPE, 1868)
• Dipsas vagrans (DUNN, 1923)
• Dipsas variegata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Dipsas ventrimaculata (BOULENGER, 1885)
• Dipsas vermiculata PETERS, 1960
• Dipsas viguieri (BOCOURT, 1884)
• Dipsas welborni ARTEAGA & BATISTA, 2023
• Dipsas williamsi (CARILLO DE ESPINOZA, 1974)
• Dipsina multimaculata (SMITH, 1847)
• Dipsosaurus dorsalis (BAIRD & GIRARD, 1852)
• Dispholidus punctatus LAURENT, 1955
• Dispholidus typus (SMITH, 1828)
• Ditaxodon taeniatus (PETERS, 1868)
• Ditypophis vivax GÜNTHER, 1881
• Dixonius siamensis (BOULENGER, 1899)
• Dogania subplana (GEOFFROY SAINT-HILAIRE, 1809)
• Dolichophis andreanus (WERNER, 1917)
• Dolichophis caspius (GMELIN, 1789)
• Dolichophis jugularis (LINNAEUS, 1758)
• Dolichophis schmidti (NIKOLSKY, 1909)
• Dopasia gracilis (GRAY, 1845)
• Dracaena guianensis DAUDIN, 1801
• Draco blanfordii BOULENGER, 1885
• Draco formosus BOULENGER, 1900
• Draco maculatus (GRAY, 1845)
• Draco melanopogon BOULENGER, 1887
• Draco obscurus BOULENGER, 1887
• Draco quinquefasciatus HARDWICKE & GRAY, 1827
• Draco taeniopterus GÜNTHER, 1861
• Draco volans LINNAEUS, 1758
• Dravidogecko anamallensis (GÜNTHER, 1875)
• Drepanoides anomalus (JAN, 1863)
• Dromicodryas bernieri (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Dromicodryas quadrilineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Dryadosaura nordestina RODRIGUES, XAVIER FREIRE, MACHADO-PELLEGRINO & SITES, 2005
• Drymarchon caudomaculatus WÜSTER, YRAUSQUIN & MIJARES-URRUTIA, 2001
• Drymarchon corais (BOIE, 1827)
• Drymarchon couperi (HOLBROOK, 1842)
• Drymarchon margaritae ROZE, 1959
• Drymarchon melanurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Drymobius chloroticus (COPE, 1886)
• Drymobius margaritiferus (SCHLEGEL, 1837)
• Drymobius melanotropis (COPE, 1875)
• Drymobius rhombifer (GÜNTHER, 1860)
• Drymoluber brazili (GOMES, 1918)
• Drymoluber dichrous (PETERS, 1863)
• Dryophiops philippina BOULENGER, 1896
• Dryophiops rubescens (GRAY, 1834)
• Dryophylax almae (FRANCO & FERREIRA, 2003)
• Dryophylax ceibae (BAILEY & THOMAS, 2007)
• Dryophylax chaquensis (BERGNA & ÁLVAREZ, 1993)
• Dryophylax chimanta (ROZE, 1958)
• Dryophylax corocoroensis (GORZULA & AYARZAGÜENA, 1996)
• Dryophylax dixoni (BAILEY & THOMAS, 2007)
• Dryophylax duida (MYERS & DONNELLY, 1996)
• Dryophylax gambotensis (PÉREZ-SANTOS & MORENO, 1989)
• Dryophylax hypoconia (COPE, 1860)
• Dryophylax marahuaquensis (GORZULA & AYARZAGÜENA, 1996)
• Dryophylax nattereri (MIKAN, 1820)
• Dryophylax paraguanae (BAILEY & THOMAS, 2007)
• Dryophylax phoenix (FRANCO, TREVINE, MONTINGELLI & ZAHER, 2017)
• Dryophylax ramonriveroi (MANZANILLA & SÁNCHEZ, 2005)
• Dryophylax yavi (MYERS & DONNELLY, 1996)
• Drysdalia coronoides (GÜNTHER, 1858)
• Drysdalia mastersii (KREFFT, 1866)
• Drysdalia rhodogaster (JAN, 1873)
• Duberria atriventris (STERNFELD, 1912)
• Duberria lutrix (LINNAEUS, 1758)
• Duberria shirana (BOULENGER, 1894)
• Echinanthera cephalomaculata DI BERNARDO, 1994
• Echinanthera cephalostriata DI BERNARDO, 1996
• Echinanthera cyanopleura (COPE, 1885)
• Echinanthera melanostigma (WAGLER, 1824)
• Echinanthera undulata (WIED-NEUWIED, 1824)
• Echiopsis curta (SCHLEGEL, 1837)
• Echis carinatus (SCHNEIDER, 1801)
• Echis coloratus GÜNTHER, 1878
• Echis hughesi CHERLIN, 1990
• Echis jogeri CHERLIN, 1990
• Echis khosatzkii CHERLIN, 1990
• Echis leucogaster ROMAN, 1972
• Echis megalocephalus CHERLIN, 1990
• Echis ocellatus STEMMLER, 1970
• Echis omanensis BABOCSAY, 2004
• Echis pyramidum (GEOFFROY SAINT-HILAIRE, 1827)
• Echis romani TRAPE, 2018
• Eirenis africanus (BOULENGER, 1914)
• Eirenis aurolineatus (VENZMER, 1919)
• Eirenis barani SCHMIDTLER, 1988
• Eirenis collaris (MÉNÉTRIES, 1832)
• Eirenis coronella (SCHLEGEL, 1837)
• Eirenis coronelloides (JAN, 1862)
• Eirenis decemlineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Eirenis eiselti SCHMIDTLER & SCHMIDTLER, 1978
• Eirenis hakkariensis SCHMIDTLER & EISELT, 1991
• Eirenis kermanensis RAJABIZADEH, SCHMIDTLER, ORLOV & SOLEIMANI, 2012
• Eirenis levantinus SCHMIDTLER, 1993
• Eirenis lineomaculatus SCHMIDT, 1939
• Eirenis medus (CHERNOV, 1940)
• Eirenis modestus (MARTIN, 1838)
• Eirenis nigrofasciatus (NIKOLSKY, 1907)
• Eirenis persicus (ANDERSON, 1872)
• Eirenis punctatolineatus (BOETTGER, 1892)
• Eirenis rechingeri EISELT, 1971
• Eirenis rothii JAN, 1863
• Eirenis thospitis SCHMIDTLER & LANZA, 1990
• Elaiophis inornatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Elaphe anomala (BOULENGER, 1916)
• Elaphe bimaculata SCHMIDT, 1925
• Elaphe cantoris (BOULENGER, 1894)
• Elaphe carinata (GÜNTHER, 1864)
• Elaphe climacophora (BOIE, 1826)
• Elaphe davidi (SAUVAGE, 1884)
• Elaphe dione (PALLAS, 1773)
• Elaphe hodgsoni (GÜNTHER, 1860)
• Elaphe moellendorffi (BOETTGER, 1886)
• Elaphe quadrivirgata (BOIE, 1826)
• Elaphe quatuorlineata (LACÉPÈDE, 1789)
• Elaphe sauromates (PALLAS, 1811)
• Elaphe schrenckii STRAUCH, 1873
• Elaphe taeniura COPE, 1861
• Elaphe urartica JABLONSKI, KUKUSHKIN, AVCI, BUNYATOVA, ILGAZ, TUNIYEV & JANDZIK, 2019
• Elapognathus coronatus (SCHLEGEL, 1837)
• Elapognathus minor (GÜNTHER, 1863)
• Elapoidis fusca (BOIE, 1827)
• Elapomorphus quinquelineatus (RADDI, 1820)
• Elapomorphus wuchereri GÜNTHER, 1861
• Elapotinus picteti JAN, 1862
• Elapsoidea boulengeri BOETTGER, 1895
• Elapsoidea broadleyi JAKOBSEN, 1997
• Elapsoidea guentherii BOCAGE, 1866
• Elapsoidea laticincta (WERNER, 1919)
• Elapsoidea loveridgei PARKER, 1949
• Elapsoidea nigra GÜNTHER, 1888
• Elapsoidea semiannulata BOCAGE, 1882
• Elapsoidea sundevallii SMITH, 1848
• Elasmodactylus tuberculosus BOULENGER, 1895
• Elgaria coerulea (WIEGMANN, 1828)
• Elgaria kingii GRAY, 1838
• Elgaria multicarinata (BLAINVILLE, 1835)
• Elgaria panamintina (STEBBINS, 1958)
• Emmochliophis fugleri FRITTS & SMITH, 1969
• Emmochliophis miops (BOULENGER, 1898)
• Emoia atrocostata (LESSON, 1830)
• Emoia caeruleocauda (DE VIS, 1892)
• Emydocephalus annulatus KREFFT, 1869
• Emydocephalus ijimae STEJNEGER, 1898
• Emydoidea blandingii (HOLBROOK, 1838)
• Emydura macquarii (GRAY, 1830)
• Enhydris enhydris (SCHNEIDER, 1799)
• Enhydris jagorii (PETERS, 1863)
• Enhydris longicauda (BOURRET, 1934)
• Enhydris subtaeniata (BOURRET, 1934)
• Enuliophis sclateri (BOULENGER, 1894)
• Enulius flavitorques (COPE, 1868)
• Enulius oligostichus SMITH, ARNDT & SHERBROOK, 1967
• Enyalioides heterolepis (BOCOURT, 1874)
• Enyalioides palpebralis (BOULENGER, 1883)
• Ephalophis greyae SMITH, 1931
• Epicrates alvarezi ABALOS, BAEZ & NADER, 1964
• Epicrates assisi MACHADO, 1944
• Epicrates cenchria (LINNAEUS, 1758)
• Epicrates crassus COPE, 1862
• Epicrates maurus GRAY, 1849
• Epictia albifrons (WAGLER, 1824)
• Epictia albipuncta (BURMEISTER, 1861)
• Epictia antoniogarciai KOCH, VENEGAS & BÖHME, 2015
• Epictia ater (TAYLOR, 1940)
• Epictia australis (FREIBERG & OREJAS-MIRANDA, 1968)
• Epictia bakewelli (OLIVER, 1937)
• Epictia borapeliotes (VANZOLINI, 1996)
• Epictia diaplocia (OREJAS-MIRANDA, 1969)
• Epictia fallax (PETERS, 1858)
• Epictia goudotii (DUMÉRIL & BIBRON, 1844)
• Epictia magnamaculata (TAYLOR, 1940)
• Epictia melanoterma (COPE, 1862)
• Epictia munoai (OREJAS-MIRANDA, 1961)
• Epictia phenops (COPE, 1875)
• Epictia septemlineata KOCH, VENEGAS & BÖHME, 2015
• Epictia signata (JAN, 1861)
• Epictia subcrotilla (KLAUBER, 1939)
• Epictia tenella (KLAUBER, 1939)
• Epictia vanwallachi KOCH, VENEGAS & BÖHME, 2015
• Epictia vellardi (LAURENT, 1984)
• Epictia weyrauchi (OREJAS-MIRANDA, 1964)
• Epictia wynni WALLACH, 2016
• Eremias acutirostris (BOULENGER, 1887)
• Eremias fasciata BLANFORD, 1874
• Eremias multiocellata GÜNTHER, 1872
• Eremias persica BLANFORD, 1875
• Eretmochelys imbricata (LINNAEUS, 1766)
• Eristicophis macmahoni ALCOCK & FINN, 1897
• Erpeton tentaculatum LACÉPÈDE, 1800
• Erythrolamprus aesculapii (LINNAEUS, 1758)
• Erythrolamprus albertguentheri (GRAZZIOTIN, ZAHER, MURPHY, SCROCCHI, BENAVIDES, ZHANG & BONATTO, 2012)
• Erythrolamprus albiventris (JAN, 1863)
• Erythrolamprus almadensis (WAGLER, 1824)
• Erythrolamprus atraventer (DIXON & THOMAS, 1985)
• Erythrolamprus bizona JAN, 1863
• Erythrolamprus breviceps (COPE, 1860)
• Erythrolamprus ceii (DIXON, 1991)
• Erythrolamprus cobella (LINNAEUS, 1758)
• Erythrolamprus cursor (LACÉPÈDE, 1789)
• Erythrolamprus dorsocorallinus (ESQUEDA, NATERA, LA MARCA & ILIJA-FISTAR, 2007)
• Erythrolamprus epinephalus (COPE, 1862)
• Erythrolamprus fraseri (BOULENGER, 1894)
• Erythrolamprus frenatus (WERNER, 1909)
• Erythrolamprus guentheri GARMAN, 1883
• Erythrolamprus ingeri (ROZE, 1958)
• Erythrolamprus jaegeri (GÜNTHER, 1858)
• Erythrolamprus juliae (COPE, 1879)
• Erythrolamprus lamonae (DUNN, 1944)
• Erythrolamprus macrosomus (AMARAL, 1936)
• Erythrolamprus maryellenae (DIXON, 1985)
• Erythrolamprus melanotus (SHAW, 1802)
• Erythrolamprus miliaris (LINNAEUS, 1758)
• Erythrolamprus mimus (COPE, 1868)
• Erythrolamprus mossoroensis (HOGE & LIMA-VERDE, 1973)
• Erythrolamprus ocellatus PETERS, 1869
• Erythrolamprus oligolepis (BOULENGER, 1905)
• Erythrolamprus ornatus (GARMAN, 1887)
• Erythrolamprus perfuscus (COPE, 1862)
• Erythrolamprus poecilogyrus (WIED-NEUWIED, 1824)
• Erythrolamprus pseudocorallus ROZE, 1959
• Erythrolamprus pseudoreginae MURPHY, BRASWELL, CHARLES, AUGUSTE, RIVAS, BORZÉE, LEHTINEN & JOWERS, 2019
• Erythrolamprus pygmaeus (COPE, 1868)
• Erythrolamprus reginae (LINNAEUS, 1758)
• Erythrolamprus sagittifer (JAN, 1863)
• Erythrolamprus semiaureus (COPE, 1862)
• Erythrolamprus subocularis (BOULENGER, 1902)
• Erythrolamprus taeniogaster (JAN, 1863)
• Erythrolamprus taeniurus (TSCHUDI, 1845)
• Erythrolamprus typhlus (LINNAEUS, 1758)
• Erythrolamprus viridis (GÜNTHER, 1862)
• Erythrolamprus vitti (DIXON, 2000)
• Erythrolamprus zweifeli (ROZE, 1959)
• Eryx colubrinus (LINNAEUS, 1758)
• Eryx conicus (SCHNEIDER, 1801)
• Eryx elegans (GRAY, 1849)
• Eryx jaculus (LINNAEUS, 1758)
• Eryx jayakari BOULENGER, 1888
• Eryx johnii (RUSSELL, 1801)
• Eryx miliaris (PALLAS, 1773)
• Eryx muelleri (BOULENGER, 1892)
• Eryx somalicus SCORTECCI, 1939
• Eryx vittatus CHERNOV, 1959
• Etheridgeum pulchrum (WERNER, 1924)
• Eumeces schneiderii (DAUDIN, 1802)
• Eumeces zarudnyi NIKOLSKY, 1900
• Eumecia anchietae BOCAGE, 1870
• Eunectes deschauenseei DUNN & CONANT, 1936
• Eunectes murinus (LINNAEUS, 1758)
• Eunectes notaeus COPE, 1862
• Euprepiophis conspicillata (BOIE, 1826)
• Euprepiophis mandarinus (CANTOR, 1842)
• Euprepiophis perlaceus (STEJNEGER, 1929)
• Eutrachelophis bassleri MYERS & MCDOWELL, 2014
• Eutropis carinata (SCHNEIDER, 1801)
• Eutropis longicaudata (HALLOWELL, 1857)
• Eutropis macularia (BLYTH, 1853)
• Eutropis multifasciata (KUHL, 1820)
• Eutropis rugifera (STOLICZKA, 1870)
• Exila nigropalmata (ANDERSSON, 1918)
• Exiliboa placata BOGERT, 1968
• Farancia abacura (HOLBROOK, 1836)
• Farancia erytrogramma (PALISOT DE BEAUVOIS, 1802)
• Ferania sieboldii (SCHLEGEL, 1837)
• Feylinia currori GRAY, 1845
• Ficimia olivacea GRAY, 1849
• Ficimia publia COPE, 1866
• Ficimia ramirezi SMITH & LANGEBARTEL, 1949
• Ficimia ruspator SMITH & TAYLOR, 1941
• Ficimia streckeri TAYLOR, 1931
• Fordonia leucobalia (SCHLEGEL, 1837)
• Fowlea asperrima (BOULENGER, 1891)
• Fowlea flavipunctata (HALLOWELL, 1860)
• Fowlea melanzosta (GRAVENHORST, 1807)
• Fowlea piscator (SCHNEIDER, 1799)
• Fowlea punctulata (GÜNTHER, 1858)
• Fowlea sanctijohannis (BOULENGER, 1890)
• Fowlea schnurrenbergeri (KRAMER, 1977)
• Fowlea tytleri (BLYTH, 1863)
• Furina barnardi (KINGHORN, 1939)
• Furina diadema (SCHLEGEL, 1837)
• Furina ornata (GRAY, 1842)
• Furina tristis (GÜNTHER, 1858)
• Galvarinus attenuatus WALKER, 1945
• Galvarinus chilensis (SCHLEGEL, 1837)
• Gambelia sila (STEJNEGER, 1890)
• Gambelia wislizenii (BAIRD & GIRARD, 1852)
• Geagras redimitus COPE, 1875
• Gehyra marginata BOULENGER, 1887
• Gehyra mutilata (WIEGMANN, 1834)
• Gehyra oceanica (LESSON, 1830)
• Gekko albomaculatus (GIEBEL, 1861)
• Gekko chinensis (GRAY, 1842)
• Gekko gecko (LINNAEUS, 1758)
• Gekko hokouensis POPE, 1928
• Gekko kuhli (STEJNEGER, 1902)
• Gekko lionotum (ANNANDALE, 1905)
• Gekko monarchus (SCHLEGEL, 1836)
• Gekko petricolus TAYLOR, 1962
• Gekko smithii GRAY, 1842
• Gekko subpalmatus (GÜNTHER, 1864)
• Geoemyda japonica FAN, 1931
• Geoemyda spengleri (GMELIN, 1789)
• Geophis annuliferus (BOULENGER, 1894)
• Geophis bellus MYERS, 2003
• Geophis betaniensis RESTREPO & WRIGHT, 1987
• Geophis bicolor GÜNTHER, 1868
• Geophis blanchardi TAYLOR & SMITH, 1939
• Geophis brachycephalus (COPE, 1871)
• Geophis carinosus STUART, 1941
• Geophis chalybeus (WAGLER, 1830)
• Geophis championi BOULENGER, 1894
• Geophis damiani WILSON, MCCRANIE & WILLIAMS, 1998
• Geophis downsi SAVAGE, 1981
• Geophis dubius (PETERS, 1861)
• Geophis dugesii BOCOURT, 1883
• Geophis dunni SCHMIDT, 1932
• Geophis godmani BOULENGER, 1894
• Geophis hoffmanni (PETERS, 1859)
• Geophis laticinctus SMITH & WILLIAMS, 1963
• Geophis laticollaris SMITH, LYNCH & ALTIG, 1965
• Geophis latifrontalis GARMAN, 1883
• Geophis mutitorques (COPE, 1885)
• Geophis nasalis (COPE, 1868)
• Geophis nigroalbus BOULENGER, 1908
• Geophis occabus PAVÓN-VÁZQUEZ, GARCÍA-VÁZQUEZ, BLANCAS-HERNÁNDEZ & NIETO-MONTES DE OCA, 2011
• Geophis petersii BOULENGER, 1894
• Geophis rhodogaster (COPE, 1868)
• Geophis rostralis (JAN, 1865)
• Geophis ruthveni WERNER, 1925
• Geophis sallaei BOULENGER, 1894
• Geophis sanniolus (COPE, 1866)
• Geophis sartorii (COPE, 1863)
• Geophis semidoliatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Geophis sieboldi (JAN, 1862)
• Geophis talamancae LIPS & SAVAGE, 1994
• Geophis tarascae HARTWEG, 1959
• Geophis zeledoni TAYLOR, 1954
• Gerarda prevostiana (EYDOUX & GERVAIS, 1837)
• Gerrhonotus infernalis BAIRD, 1859
• Gerrhonotus liocephalus WIEGMANN, 1828
• Gerrhonotus ophiurus COPE, 1867
• Gerrhopilus depressiceps (STERNFELD, 1913)
• Gerrhopilus floweri (BOULENGER, 1899)
• Gerrhopilus mirus (JAN, 1860)
• Gerrhopilus oligolepis (WALL, 1909)
• Gerrhopilus thurstoni (BOETTGER, 1890)
• Gerrhosaurus auritus BOETTGER, 1887
• Gerrhosaurus flavigularis WIEGMANN, 1828
• Gerrhosaurus intermedius LÖNNBERG, 1907
• Gerrhosaurus multilineatus BOCAGE, 1866
• Gerrhosaurus nigrolineatus HALLOWELL, 1857
• Gerrhosaurus skoogi ANDERSSON, 1916
• Gloydius blomhoffii (BOIE, 1826)
• Gloydius brevicaudus (STEJNEGER, 1907)
• Gloydius halys (PALLAS, 1776)
• Gloydius himalayanus (GÜNTHER, 1864)
• Gloydius huangi WANG, REN, DONG, JIANG, SHI, SILER & CHE, 2019
• Gloydius intermedius (STRAUCH, 1868)
• Gloydius liupanensis LIU, SONG & LUO, 1989
• Gloydius shedaoensis (ZHAO, 1979)
• Gloydius tsushimaensis (ISOGAWA, MORIYA & MITSUI, 1994)
• Gloydius ussuriensis (EMELIANOV, 1929)
• Glyptemys insculpta (LE CONTE, 1830)
• Goggia lineata (GRAY, 1838)
• Gonatodes hasemani GRIFFIN, 1917
• Gonatodes humeralis (GUICHENOT, 1855)
• Gongylosoma baliodeira (BOIE, 1827)
• Gongylosoma calamaria (GÜNTHER, 1858)
• Gongylosoma frenata (GÜNTHER, 1858)
• Gongylosoma longicaudus (PETERS, 1871)
• Gongylosoma mukutense GRISMER, DAS & LEONG, 2003
• Gongylosoma nicobariensis (STOLICZKA, 1870)
• Gongylosoma scriptum (THEOBALD, 1868)
• Gonionotophis brussauxi (MOCQUARD, 1889)
• Gonionotophis grantii (GÜNTHER, 1863)
• Gonionotophis klingi MATSCHIE, 1893
• Gonocephalus bellii (DUMÉRIL & BIBRON, 1837)
• Gonocephalus chamaeleontinus (LAURENTI, 1768)
• Gonocephalus doriae PETERS, 1871
• Gonocephalus grandis (GRAY, 1845)
• Gonyosoma boulengeri (MOCQUARD, 1897)
• Gonyosoma coeruleum LIU, HOU, LWIN, WANG & RAO, 2021
• Gonyosoma frenatum (GRAY, 1853)
• Gonyosoma jansenii (BLEEKER, 1859)
• Gonyosoma margaritatum PETERS, 1871
• Gonyosoma oxycephalum (BOIE, 1827)
• Gonyosoma prasinum (BLYTH, 1855)
• Gracililima nyassae (GÜNTHER, 1888)
• Graptemys geographica (LESUEUR, 1817)
• Graptemys ouachitensis CAGLE, 1953
• Graptemys pseudogeographica (GRAY, 1831)
• Grayia caesar (GÜNTHER, 1863)
• Grayia ornata (BOCAGE, 1866)
• Grayia smithii (LEACH, 1818)
• Grayia tholloni MOCQUARD, 1897
• Grypotyphlops acutus (DUMÉRIL & BIBRON, 1844)
• Gyalopion canum (COPE, 1860)
• Gyalopion quadrangulare (GÜNTHER, 1893)
• Gyiophis maculosus (BLANFORD, 1881)
• Gymnodactylus darwinii (GRAY, 1845)
• Hapsidophrys lineata FISCHER, 1856
• Hapsidophrys principis (BOULENGER, 1906)
• Hapsidophrys smaragdina (SCHLEGEL, 1837)
• Hebius annamensis (BOURRET, 1934)
• Hebius atemporalis (BOURRET, 1934)
• Hebius bitaeniatus (WALL, 1925)
• Hebius boulengeri (GRESSITT, 1937)
• Hebius celebicus (PETERS & DORIA, 1878)
• Hebius chapaensis (BOURRET, 1934)
• Hebius clerki (WALL, 1925)
• Hebius concelarus (MALNATE, 1963)
• Hebius craspedogaster (BOULENGER, 1899)
• Hebius deschauenseei (TAYLOR, 1934)
• Hebius flavifrons (BOULENGER, 1887)
• Hebius frenatus (DUNN, 1923)
• Hebius groundwateri (SMITH, 1922)
• Hebius igneus DAVID, VOGEL, NGUYEN, ORLOV, PAUWELS, TEYNIÉ & ZIEGLER, 2021
• Hebius inas (LAIDLAW, 1901)
• Hebius ishigakiensis (MALNATE & MUNSTERMAN, 1960)
• Hebius johannis (BOULENGER, 1908)
• Hebius kerinciensis (DAVID & DAS, 2003)
• Hebius khasiensis (BOULENGER, 1890)
• Hebius leucomystax (DAVID, BAIN, QUANG TRUONG, ORLOV, VOGEL, NGOC THANH & ZIEGLER, 2007)
• Hebius maximus (MALNATE, 1962)
• Hebius metusia (INGER, ZHAO, SHAFFER & WU, 1990)
• Hebius modestus (GÜNTHER, 1875)
• Hebius nigriventer (WALL, 1925)
• Hebius octolineatus (BOULENGER, 1904)
• Hebius optatus (HU & ZHAO, 1966)
• Hebius parallelus (BOULENGER, 1890)
• Hebius petersii (BOULENGER, 1893)
• Hebius popei (SCHMIDT, 1925)
• Hebius pryeri (BOULENGER, 1887)
• Hebius sanguineus (SMEDLEY, 1932)
• Hebius sarasinorum (BOULENGER, 1896)
• Hebius sarawacensis (GÜNTHER, 1872)
• Hebius sauteri (BOULENGER, 1909)
• Hebius taronensis (SMITH, 1940)
• Hebius venningi (WALL, 1910)
• Hebius vibakari (BOIE, 1826)
• Hebius viperinus (SCHENKEL, 1901)
• Helicops angulatus (LINNAEUS, 1758)
• Helicops carinicaudus (WIED-NEUWIED, 1824)
• Helicops danieli AMARAL, 1938
• Helicops hagmanni ROUX, 1910
• Helicops infrataeniatus JAN, 1865
• Helicops leopardinus (SCHLEGEL, 1837)
• Helicops modestus GÜNTHER, 1861
• Helicops pastazae SHREVE, 1934
• Helicops polylepis GÜNTHER, 1861
• Helicops scalaris JAN, 1865
• Helicops trivittatus (GRAY, 1849)
• Heliobolus lugubris (SMITH, 1838)
• Helminthophis flavoterminatus (PETERS, 1858)
• Helminthophis frontalis (PETERS, 1860)
• Heloderma suspectum COPE, 1869
• Helophis schoutedeni (DE WITTE, 1942)
• Hemachatus haemachatus (BONNATERRE, 1790)
• Hemerophis socotrae (GÜNTHER, 1881)
• Hemiaspis signata (JAN, 1859)
• Hemibungarus calligaster (WIEGMANN, 1835)
• Hemibungarus gemianulis PETERS, 1872
• Hemibungarus mcclungi TAYLOR, 1922
• Hemicordylus capensis (SMITH, 1838)
• Hemidactylus agrius VANZOLINI, 1978
• Hemidactylus benguellensis BOCAGE, 1893
• Hemidactylus bowringii (GRAY, 1845)
• Hemidactylus fasciatus GRAY, 1842
• Hemidactylus flaviviridis RÜPPELL, 1835
• Hemidactylus forbesii BOULENGER, 1899
• Hemidactylus frenatus DUMÉRIL & BIBRON, 1836
• Hemidactylus garnotii DUMÉRIL & BIBRON, 1836
• Hemidactylus granti BOULENGER, 1899
• Hemidactylus homoeolepis BLANFORD, 1881
• Hemidactylus inintellectus Sindaco, Ziliani, Razzetti, Pupin, Grieco, 2009
• Hemidactylus mabouia (MOREAU DE JONNÈS, 1818)
• Hemidactylus ophiolepis BOULENGER, 1903
• Hemidactylus oxyrhinus BOULENGER, 1899
• Hemidactylus platycephalus PETERS, 1854
• Hemidactylus platyurus (SCHNEIDER, 1797)
• Hemidactylus pumilio BOULENGER, 1899
• Hemidactylus robustus HEYDEN, 1827
• Hemidactylus turcicus (LINNAEUS, 1758)
• Hemiphyllodactylus typus BLEEKER, 1860
• Hemirhagerrhis hildebrandtii (PETERS, 1878)
• Hemirhagerrhis kelleri BOETTGER, 1893
• Hemirhagerrhis nototaenia (GÜNTHER, 1864)
• Hemirhagerrhis viperina (BOCAGE, 1873)
• Hemorrhois algirus (JAN, 1863)
• Hemorrhois hippocrepis (LINNAEUS, 1758)
• Hemorrhois nummifer (REUSS, 1834)
• Hemorrhois ravergieri (MÉNÉTRIES, 1832)
• Heosemys annandalii (BOULENGER, 1903)
• Heosemys grandis (GRAY, 1860)
• Heosemys spinosa (GRAY, 1831)
• Heremites auratus (LINNAEUS, 1758)
• Heremites septemtaeniatus (REUSS, 1834)
• Heremites vittatus (OLIVIER, 1804)
• Herpetoreas pealii (SCLATER, 1891)
• Herpetoreas platyceps (BLYTH, 1855)
• Herpetoreas sieboldii GÜNTHER, 1860
• Herpetoreas tpser REN, JIANG, HUANG, DAVID & LI, 2022
• Herpetoreas xenura (WALL, 1907)
• Heterodon kennerlyi KENNICOTT, 1860
• Heterodon nasicus BAIRD & GIRARD, 1852
• Heterodon platirhinos LATREILLE, 1801
• Heterodon simus (LINNAEUS, 1766)
• Hierophis cypriensis (SCHÄTTI, 1985)
• Hierophis gemonensis (LAURENTI, 1768)
• Hierophis viridiflavus (LACÉPÈDE, 1789)
• Holaspis laevis WERNER, 1896
• Holbrookia approximans BAIRD, 1859
• Holbrookia elegans BOCOURT, 1874
• Holbrookia lacerata COPE, 1880
• Holbrookia maculata GIRARD, 1851
• Holcosus amphigrammus (SMITH & LAUFE, 1945)
• Holcosus gaigeae (SMITH & LAUFE, 1946)
• Holcosus hartwegi (SMITH, 1940)
• Holcosus parvus (BARBOUR & NOBLE, 1915)
• Holcosus sinister (SMITH & LAUFE, 1946)
• Holcosus stuarti SMITH, 1940
• Holcosus thomasi (SMITH & LAUFE, 1946)
• Holcosus undulatus (WIEGMANN, 1834)
• Hologerrhum philippinum GÜNTHER, 1858
• Homalopsis buccata (LINNAEUS, 1758)
• Homalopsis hardwickii GRAY, 1842
• Homalopsis semizonata BLYTH, 1855
• Homopholis wahlbergii (SMITH, 1849)
• Homopus areolatus (THUNBERG, 1787)
• Homopus femoralis BOULENGER, 1888
• Homoroselaps dorsalis (SMITH, 1849)
• Homoroselaps lacteus (LINNAEUS, 1758)
• Hoplocephalus bitorquatus (JAN, 1859)
• Hoplocephalus bungaroides (SCHLEGEL, 1837)
• Hoplocephalus stephensii KREFFT, 1869
• Hormonotus modestus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Hyalosaurus koellikeri GÜNTHER, 1873
• Hydraethiops melanogaster GÜNTHER, 1872
• Hydrodynastes bicinctus (HERMANN, 1804)
• Hydrodynastes gigas (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Hydromorphus concolor PETERS, 1859
• Hydromorphus dunni SLEVIN, 1942
• Hydrophis annandalei (LAIDLAW, 1901)
• Hydrophis anomalus (SCHMIDT, 1852)
• Hydrophis atriceps GÜNTHER, 1864
• Hydrophis belcheri (GRAY, 1849)
• Hydrophis bituberculatus PETERS, 1873
• Hydrophis brookii GÜNTHER, 1872
• Hydrophis caerulescens (SHAW, 1802)
• Hydrophis cantoris GÜNTHER, 1864
• Hydrophis curtus (SHAW, 1802)
• Hydrophis cyanocinctus DAUDIN, 1803
• Hydrophis czeblukovi (KHARIN, 1984)
• Hydrophis fasciatus (SCHNEIDER, 1799)
• Hydrophis hardwickii (GRAY, 1834)
• Hydrophis inornatus (GRAY, 1849)
• Hydrophis jerdonii (GRAY, 1849)
• Hydrophis klossi BOULENGER, 1912
• Hydrophis laboutei RASMUSSEN & INEICH, 2000
• Hydrophis lamberti SMITH, 1917
• Hydrophis lapemoides (GRAY, 1849)
• Hydrophis macdowelli KHARIN, 1983
• Hydrophis major (SHAW, 1802)
• Hydrophis mamillaris (DAUDIN, 1803)
• Hydrophis melanocephalus GRAY, 1849
• Hydrophis melanosoma GÜNTHER, 1864
• Hydrophis nigrocinctus DAUDIN, 1803
• Hydrophis obscurus DAUDIN, 1803
• Hydrophis ocellatus GRAY, 1849
• Hydrophis ornatus (GRAY, 1842)
• Hydrophis pacificus BOULENGER, 1896
• Hydrophis peronii (DUMÉRIL, 1853)
• Hydrophis platurus (LINNAEUS, 1766)
• Hydrophis schistosus DAUDIN, 1803
• Hydrophis semperi GARMAN, 1881
• Hydrophis sibauensis RASMUSSEN, AULIYA & BÖHME, 2001
• Hydrophis spiralis (SHAW, 1802)
• Hydrophis stokesii (GRAY, 1846)
• Hydrophis stricticollis GÜNTHER, 1864
• Hydrophis torquatus GÜNTHER, 1864
• Hydrophis viperinus (SCHMIDT, 1852)
• Hydrops caesurus SCROCCHI, FERREIRA, GIRAUDO, ÁVILA & MOTTE, 2005
• Hydrops martii (WAGLER, 1824)
• Hydrops triangularis (WAGLER, 1824)
• Hypnale hypnale (MERREM, 1820)
• Hypsiglena affinis BOULENGER, 1894
• Hypsiglena chlorophaea COPE, 1860
• Hypsiglena jani (DUGÈS, 1865)
• Hypsiglena ochrorhynchus COPE, 1860
• Hypsiglena slevini TANNER, 1943
• Hypsiglena tanzeri DIXON & LIEB, 1972
• Hypsiglena torquata (GÜNTHER, 1860)
• Hypsirhynchus ater (GOSSE, 1851)
• Hypsirhynchus callilaemus (GOSSE, 1851)
• Hypsirhynchus ferox GÜNTHER, 1858
• Hypsirhynchus parvifrons (COPE, 1862)
• Hypsiscopus plumbeus (BOIE, 1827)
• Ialtris haetianus (COCHRAN, 1935)
• Ichnotropis bivittata BOCAGE, 1866
• Ichnotropis capensis (SMITH, 1838)
• Ichnotropis grandiceps BROADLEY, 1967
• Iguana iguana (LINNAEUS, 1758)
• Iguanognathus werneri BOULENGER, 1898
• Imantodes cenchoa (LINNAEUS, 1758)
• Imantodes chocoensis TORRES-CARVAJAL, YÁNEZ-MUÑOZ, QUIROLA, SMITH & ALMENDÁRIZ, 2012
• Imantodes gemmistratus (COPE, 1861)
• Imantodes inornatus (BOULENGER, 1896)
• Imantodes lentiferus (COPE, 1894)
• Imantodes phantasma MYERS, 1982
• Imantodes tenuissimus (COPE, 1867)
• Incaspis amaru (ZAHER, ARREDONDO, VALENCIA, ARBELÁEZ, RODRIGUES & ALTAMIRANO-BENAVIDES, 2014)
• Incaspis simonsii (BOULENGER, 1900)
• Incaspis tachymenoides (SCHMIDT & WALKER, 1943)
• Indotestudo elongata (BLYTH, 1854)
• Indotyphlops albiceps (BOULENGER, 1898)
• Indotyphlops braminus (DAUDIN, 1803)
• Indotyphlops jerdoni (BOULENGER, 1890)
• Indotyphlops longissimus (DUMÉRIL & BIBRON, 1844)
• Indotyphlops loveridgei (CONSTABLE, 1949)
• Indotyphlops madgemintonae (KHAN, 1999)
• Indotyphlops pammeces (GÜNTHER, 1864)
• Indotyphlops schmutzi (AUFFENBERG, 1980)
• Indotyphlops tenuicollis (PETERS, 1864)
• Intellagama lesueurii (GRAY, 1831)
• Inyoka swazicus (SCHAEFER, 1970)
• Iphisa elegans GRAY, 1851
• Isanophis boonsongi (TAYLOR & ELBEL, 1958)
• Ithycyphus blanci DOMERGUE, 1988
• Ithycyphus goudoti (SCHLEGEL, 1837)
• Ithycyphus miniatus (SCHLEGEL, 1837)
• Ithycyphus oursi DOMERGUE, 1986
• Ithycyphus perineti DOMERGUE, 1986
• Karusasaurus polyzonus (SMITH, 1838)
• Kentropyx altamazonica (COPE, 1875)
• Kentropyx calcarata SPIX, 1825
• Kentropyx pelviceps (COPE, 1868)
• Kinixys belliana GRAY, 1831
• Kinixys natalensis HEWITT, 1935
• Kinixys nogueyi (LATASTE, 1886)
• Kinixys spekii GRAY, 1863
• Kinixys zombensis HEWITT, 1931
• Kinosternon acutum GRAY, 1831
• Kinosternon flavescens (AGASSIZ, 1857)
• Kinosternon herrerai STEJNEGER, 1925
• Kinosternon integrum LE CONTE, 1854
• Kinosternon leucostomum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
• Kladirostratus acutus (GÜNTHER, 1888)
• Lacerta agilis LINNAEUS, 1758
• Lacerta media LANTZ & CYRÉN, 1920
• Lacerta strigata EICHWALD, 1831
• Lachesis acrochorda (GARCIA, 1896)
• Lachesis melanocephala SOLÓRZANO & CERDAS, 1986
• Lachesis muta (LINNAEUS, 1766)
• Lachesis rhombeata (WIED, 1824)
• Lachesis stenophrys COPE, 1875
• Laemanctus longipes WIEGMANN, 1834
• Laemanctus serratus COPE, 1864
• Lampropeltis abnorma (BOCOURT, 1886)
• Lampropeltis alterna (BROWN, 1901)
• Lampropeltis annulata KENNICOTT, 1860
• Lampropeltis californiae (BLAINVILLE, 1835)
• Lampropeltis calligaster (HARLAN, 1827)
• Lampropeltis catalinensis VAN DENBURGH & SLEVIN, 1921
• Lampropeltis elapsoides (HOLBROOK, 1838)
• Lampropeltis extenuata (BROWN, 1890)
• Lampropeltis getula (LINNAEUS, 1766)
• Lampropeltis greeri WEBB, 1961
• Lampropeltis holbrooki STEJNEGER, 1902
• Lampropeltis mexicana (GARMAN, 1884)
• Lampropeltis micropholis COPE, 1860
• Lampropeltis nigra (YARROW, 1882)
• Lampropeltis occipitolineata PRICE, 1987
• Lampropeltis polyzona COPE, 1860
• Lampropeltis pyromelana (COPE, 1866)
• Lampropeltis rhombomaculata (HOLBROOK, 1840)
• Lampropeltis ruthveni BLANCHARD, 1920
• Lampropeltis splendida (BAIRD & GIRARD, 1853)
• Lampropeltis triangulum (LACÉPÈDE, 1789)
• Lampropeltis webbi BRYSON, DIXON & LAZCANO, 2005
• Lampropeltis zonata (LOCKINGTON, 1835)
• Lamprophis aurora (LINNAEUS, 1758)
• Lamprophis fiskii BOULENGER, 1887
• Lamprophis fuscus BOULENGER, 1893
• Langaha alluaudi MOCQUARD, 1901
• Langaha madagascariensis BONATERRE, 1790
• Langaha pseudoalluaudi DOMERGUE, 1988
• Lankascincus sripadensis MENDIS WICKRAMASINGHE, RODRIGO, DAYAWANSA & JAYANTHA, 2007
• Lankascincus taprobanensis (KELAART, 1854)
• Latastia johnstonii BOULENGER, 1907
• Laticauda colubrina (SCHNEIDER, 1799)
• Laticauda crockeri SLEVIN, 1934
• Laticauda frontalis (DE VIS, 1905)
• Laticauda guineai HEATWOLE, BUSACK & COGGER, 2005
• Laticauda laticaudata (LINNAEUS, 1758)
• Laticauda saintgironsi COGGER & HEATWOLE, 2006
• Laticauda semifasciata (REINWARDT, 1837)
• Laudakia melanura BLYTH, 1854
• Laudakia nupta (DE FILIPPI, 1843)
• Laudakia stellio (LINNAEUS, 1758)
• Laudakia vulgaris (SONNINI & LATREILLE, 1802)
• Leiocephalus barahonensis SCHMIDT, 1921
• Leioheterodon madagascariensis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Leioheterodon modestus (GÜNTHER, 1863)
• Leiolepis belliana (HARDWICKE & GRAY, 1827)
• Leiolepis ocellata PETERS, 1971
• Leiolepis reevesii (GRAY, 1831)
• Leiolepis rubritaeniata MERTENS, 1961
• Leiopython albertisii (PETERS & DORIA, 1878)
• Leiopython fredparkeri SCHLEIP, 2008
• Lepidochelys olivacea (ESCHSCHOLTZ, 1829)
• Lepidophyma dontomasi (SMITH, 1942)
• Lepidophyma gaigeae MOSAUER, 1936
• Lepidophyma occulor SMITH, 1942
• Lepidophyma radula (SMITH, 1942)
• Lepidophyma smithii BOCOURT, 1876
• Lepidophyma sylvaticum TAYLOR, 1939
• Leposternon infraorbitale (BERTHOLD, 1859)
• Leposternon scutigerum (HEMPRICH, 1820)
• Leptodeira annulata (LINNAEUS, 1758)
• Leptodeira ashmeadii (HALLOWELL, 1845)
• Leptodeira bakeri RUTHVEN, 1936
• Leptodeira frenata (COPE, 1886)
• Leptodeira larcorum SCHMIDT & WALKER, 1943
• Leptodeira maculata (HALLOWELL, 1861)
• Leptodeira nigrofasciata GÜNTHER, 1868
• Leptodeira ornata (BOCOURT, 1884)
• Leptodeira pulchriceps DUELLMAN, 1958
• Leptodeira punctata (PETERS, 1866)
• Leptodeira rhombifera GÜNTHER, 1872
• Leptodeira rubricata (COPE, 1893)
• Leptodeira septentrionalis (KENNICOTT, 1859)
• Leptodeira splendida GÜNTHER, 1885
• Leptodeira uribei (BAUTISTA & SMITH, 1992)
• Leptodrymus pulcherrimus (COPE, 1874)
• Leptomicrurus collaris (SCHLEGEL, 1837)
• Leptomicrurus narduccii (JAN, 1863)
• Leptophis ahaetulla (LINNAEUS, 1758)
• Leptophis bocourti BOULENGER, 1898
• Leptophis bolivianus OLIVER, 1942
• Leptophis coeruleodorsus OLIVER, 1942
• Leptophis cupreus (COPE, 1868)
• Leptophis depressirostris (COPE, 1861)
• Leptophis diplotropis (GÜNTHER, 1872)
• Leptophis liocercus (WIED, 1824)
• Leptophis marginatus (COPE, 1862)
• Leptophis mexicanus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Leptophis modestus (GÜNTHER, 1872)
• Leptophis nebulosus OLIVER, 1942
• Leptophis nigromarginatus (GÜNTHER, 1866)
• Leptophis occidentalis (GÜNTHER, 1859)
• Leptophis praestans (COPE, 1868)
• Leptophis riveti DESPAX, 1910
• Leptophis stimsoni HARDING, 1995
• Leptophis urostictus (PETERS, 1873)
• Leptotyphlops conjunctus (JAN, 1861)
• Leptotyphlops emini (BOULENGER, 1890)
• Leptotyphlops incognitus (BROADLEY & WATSON, 1976)
• Leptotyphlops jacobseni BROADLEY & BROADLEY, 1999
• Leptotyphlops kafubi (BOULENGER, 1919)
• Leptotyphlops latirostris (STERNFELD, 1912)
• Leptotyphlops lepezi (BOULENGER, 1901)
• Leptotyphlops mbanjensis BROADLEY & WALLACH, 2007
• Leptotyphlops merkeri (WERNER, 1909)
• Leptotyphlops nigricans (SCHLEGEL, 1839)
• Leptotyphlops pitmani BROADLEY & WALLACH, 2007
• Leptotyphlops scutifrons (PETERS, 1854)
• Leptotyphlops sylvicolus BROADLEY & WALLACH, 1997
• Lerista storri GREER, MCDONALD & LAWRIE, 1983
• Letheobia acutirostrata (ANDERSSON, 1916)
• Letheobia caeca (DUMÉRIL, 1856)
• Letheobia crossii (BOULENGER, 1893)
• Letheobia debilis (JOGER, 1990)
• Letheobia decorosus (BUCHHOLZ & PETERS, 1875)
• Letheobia episcopus (FRANZEN & WALLACH, 2002)
• Letheobia erythraea (SCORTECCI, 1929)
• Letheobia feae (BOULENGER, 1906)
• Letheobia gracilis (STERNFELD, 1910)
• Letheobia graueri (STERNFELD, 1912)
• Letheobia jubana BROADLEY & WALLACH, 2007
• Letheobia kibarae (DE WITTE, 1953)
• Letheobia largeni BROADLEY & WALLACH, 2007
• Letheobia lumbriciformis (PETERS, 1874)
• Letheobia manni (LOVERIDGE, 1941)
• Letheobia newtoni (BOCAGE, 1890)
• Letheobia pallida COPE, 1869
• Letheobia pembana BROADLEY & WALLACH, 2007
• Letheobia praeocularis (STEJNEGER, 1894)
• Letheobia rufescens (CHABANAUD, 1916)
• Letheobia simoni (BOETTGER, 1879)
• Letheobia somalica (BOULENGER, 1895)
• Letheobia stejnegeri (LOVERIDGE, 1931)
• Letheobia sudanensis (SCHMIDT, 1923)
• Letheobia swahilica (BROADLEY & WALLACH, 2007)
• Letheobia toritensis BROADLEY & WALLACH, 2007
• Letheobia uluguruensis (BARBOUR & LOVERIDGE, 1928)
• Letheobia wittei (ROUX-ESTÈVE, 1974)
• Letheobia zenkeri (STERNFELD, 1908)
• Liasis fuscus PETERS, 1873
• Liasis mackloti DUMÉRIL & BIBRON, 1844
• Lichanura orcutti STEJNEGER, 1889
• Lichanura trivirgata COPE, 1861
• Limaformosa capensis (SMITH, 1847)
• Limaformosa chanleri (STEJNEGER, 1893)
• Limaformosa crossi (BOULENGER, 1895)
• Limaformosa guirali (MOCQUARD, 1887)
• Limaformosa savorgnani (MOCQUARD, 1887)
• Limaformosa vernayi (BOGERT, 1940)
• Limnophis bangweolicus (MERTENS, 1936)
• Limnophis bicolor GÜNTHER, 1865
• Liodytes alleni (GARMAN, 1874)
• Liodytes rigida (SAY, 1825)
• Liolaemus azarai AVILA, 2003
• Liolaemus bellii GRAY, 1845
• Liolaemus josei ABDALA, 2005
• Liolaemus lemniscatus GRAVENHORST, 1838
• Liolaemus stolzmanni (STEINDACHNER, 1891)
• Liolaemus thomasi LAURENT, 1998
• Liopeltis stoliczkae (SCLATER, 1891)
• Liopeltis tricolor (SCHLEGEL, 1837)
• Liophidium apperti DOMERGUE, 1984
• Liophidium chabaudi DOMERGUE, 1984
• Liophidium pattoni VIEITES, RATSOAVINA, RANDRIANIAINA, NAGY, GLAW & VENCES, 2010
• Liophidium therezieni DOMERGUE, 1984
• Liophidium torquatum (BOULENGER, 1888)
• Liophidium trilineatum BOULENGER, 1896
• Liophidium vaillanti (MOCQUARD, 1901)
• Liopholidophis dimorphus GLAW, NAGY, FRANZEN & VENCES, 2007
• Liopholidophis grandidieri MOCQUARD, 1904
• Liopholidophis sexlineatus (GÜNTHER, 1882)
• Liopholidophis varius (FISCHER, 1884)
• Liotyphlops albirostris (PETERS, 1858)
• Liotyphlops anops (COPE, 1899)
• Liotyphlops schubarti VANZOLINI, 1948
• Liotyphlops ternetzii (BOULENGER, 1896)
• Liotyphlops trefauti FREIRE, CARAMASCHI & SUZART ARGÔLO, 2007
• Liotyphlops wilderi (GARMAN, 1883)
• Lipinia microcerca (BOETTGER, 1901)
• Lipinia vittigera (BOULENGER, 1894)
• Lophognathus gilberti GRAY, 1842
• Lophognathus horneri MELVILLE, RITCHIE, CHAPPLE, GLOR & SCHULTE, 2018
• Lophosaurus boydii (MACLEAY, 1884)
• Lophosaurus spinipes (DUMÉRIL, 1851)
• Loveridgelaps elapoides (BOULENGER, 1890)
• Loxocemus bicolor COPE, 1861
• Lubuya ivensii (BOCAGE, 1879)
• Lycodon albofuscus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Lycodon aulicus (LINNAEUS, 1758)
• Lycodon butleri BOULENGER, 1900
• Lycodon capucinus BOIE, 1827
• Lycodon cardamomensis DALTRY & WÜSTER, 2002
• Lycodon carinatus (KUHL, 1820)
• Lycodon cavernicolus GRISMER, QUAH, ANUAR M.S., MuiN, WOOD & NOR, 2014
• Lycodon chapaensis (ANGEL & BOURRET, 1933)
• Lycodon davisonii (BLANFORD, 1878)
• Lycodon dumerilii (BOULENGER, 1893)
• Lycodon effraenis CANTOR, 1847
• Lycodon fasciatus (ANDERSON, 1879)
• Lycodon fasciolatus (SHAW, 1802)
• Lycodon flavicollis MUKHERJEE & BHUPATHY, 2007
• Lycodon flavomaculatus WALL, 1907
• Lycodon flavozonatus (POPE, 1928)
• Lycodon futsingensis (POPE, 1928)
• Lycodon gammiei (BLANFORD, 1878)
• Lycodon gibsonae VOGEL & DAVID, 2019
• Lycodon gongshan VOGEL & LUO, 2011
• Lycodon gracilis (GÜNTHER, 1864)
• Lycodon hypsirhinoides (THEOBALD, 1868)
• Lycodon jara (SHAW, 1802)
• Lycodon laoensis GÜNTHER, 1864
• Lycodon liuchengchaoi ZHANG, JIANG, VOGEL & RAO, 2011
• Lycodon muelleri DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Lycodon multizonatus (ZHAO & JIANG, 1981)
• Lycodon neomaculatus (NGUYEN, LEE, PAUWELS, KENNEDY-GOLD, POYARKOV, DAVID & VOGEL, 2024)
• Lycodon nympha (DAUDIN, 1803)
• Lycodon obvelatus WANG, YU, VOGEL & CHE, 2020
• Lycodon ophiophagus VOGEL, DAVID, PAUWELS, SUMONTHA, NORVAL, HENDRIX, VU & ZIEGLER, 2009
• Lycodon orientalis (HILGENDORF, 1880)
• Lycodon philippinus (GRIFFIN, 1909)
• Lycodon rufozonatus CANTOR, 1842
• Lycodon ruhstrati (FISCHER, 1886)
• Lycodon semicarinatus (COPE, 1860)
• Lycodon septentrionalis (GÜNTHER, 1875)
• Lycodon striatus (SHAW, 1802)
• Lycodon subannulatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Lycodon subcinctus BOIE, 1827
• Lycodon synaptor VOGEL & DAVID, 2010
• Lycodon tiwarii BISWAS & SANYAL, 1965
• Lycodon travancoricus (BEDDOME, 1870)
• Lycodon tristrigatus (GÜNTHER, 1858)
• Lycodon zawi SLOWINSKI, PAWAR, WIN, THIN, GYI, OO & TUN, 2001
• Lycodonomorphus bicolor (GÜNTHER, 1893)
• Lycodonomorphus laevissimus (GÜNTHER, 1862)
• Lycodonomorphus leleupi (LAURENT, 1950)
• Lycodonomorphus obscuriventris FITZSIMONS, 1963
• Lycodonomorphus rufulus (LICHTENSTEIN, 1823)
• Lycodonomorphus whytii (BOULENGER, 1897)
• Lycodryas citrinus (DOMERGUE, 1995)
• Lycodryas gaimardi (SCHLEGEL, 1837)
• Lycodryas granuliceps (BOETTGER, 1877)
• Lycodryas guentheri (BOULENGER, 1896)
• Lycodryas inopinae (DOMERGUE, 1995)
• Lycodryas inornatus (BOULENGER, 1896)
• Lycodryas maculatus (GÜNTHER, 1858)
• Lycodryas pseudogranuliceps (DOMERGUE, 1995)
• Lycophidion acutirostre GÜNTHER, 1868
• Lycophidion albomaculatum STEINDACHNER, 1870
• Lycophidion capense (SMITH, 1831)
• Lycophidion depressirostre LAURENT, 1968
• Lycophidion hellmichi LAURENT, 1964
• Lycophidion irroratum (LEACH, 1819)
• Lycophidion laterale HALLOWELL, 1857
• Lycophidion multimaculatum BOETTGER, 1888
• Lycophidion namibianum BROADLEY, 1991
• Lycophidion nigromaculatum (PETERS, 1863)
• Lycophidion ornatum PARKER, 1936
• Lycophidion pygmaeum BROADLEY, 1996
• Lycophidion semiannule PETERS, 1854
• Lycophidion semicinctum DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Lycophidion taylori BROADLEY & HUGHES, 1993
• Lycophidion variegatum BROADLEY, 1969
• Lygodactylus angolensis BOCAGE, 1896
• Lygodactylus angularis GÜNTHER, 1893
• Lygodactylus bonsi PASTEUR, 1962
• Lygodactylus capensis (SMITH, 1849)
• Lygodactylus chobiensis FITZSIMONS, 1932
• Lygodactylus gutturalis (BOCAGE, 1873)
• Lygodactylus heeneni DE WITTE, 1933
• Lygodactylus nyaneka MARQUES, CERIACO, BUEHLER, BANDEIRA, JANOTA & BAUER, 2020
• Lygodactylus paurospilus (LAURENT, 1952)
• Lygodactylus stevensoni HEWITT, 1926
• Lygophis anomalus (GÜNTHER, 1858)
• Lygophis dilepis COPE, 1862
• Lygophis elegantissimus (KOSLOWSKY, 1896)
• Lygophis flavifrenatus COPE, 1862
• Lygophis lineatus (LINNAEUS, 1758)
• Lygophis meridionalis (SCHENKEL, 1901)
• Lygophis paucidens HOGE, 1953
• Lygophis vanzolinii (DIXON, 1985)
• Lygosoma isodactylum (GÜNTHER, 1864)
• Lygosoma quadrupes (LINNAEUS, 1766)
• Lytorhynchus diadema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Lytorhynchus gaddi NIKOLSKY, 1907
• Lytorhynchus kennedyi SCHMIDT, 1939
• Lytorhynchus maynardi ALCOCK & FINN, 1897
• Lytorhynchus paradoxus (GÜNTHER, 1875)
• Lytorhynchus ridgewayi BOULENGER, 1887
• Mabuya altamazonica MIRALLES, BARRIO-AMOROS, RIVAS, CHAPARRO-AUZA, 2006
• Mabuya mabouya (BONNATERRE, 1789)
• Macrelaps microlepidotus (GÜNTHER, 1860)
• Macrocalamus chanardi DAVID & PAUWELS, 2005
• Macrocalamus lateralis GÜNTHER, 1864
• Macrochelys temminckii (TROOST, 1835)
• Macroprotodon abubakeri WADE, 2001
• Macroprotodon brevis (GÜNTHER, 1862)
• Macroprotodon cucullatus (GEOFFROY SAINT-HILAIRE, 1827)
• Macroprotodon mauritanicus GUICHENOT, 1850
• Macrovipera lebetinus (LINNAEUS, 1758)
• Macrovipera razii ORAIE, RASTEGAR-POUYANI, KHOSRAVANI, MORADI, AKBARI, SEHHATISABET, SHAFIEI, STÜMPEL & JOGER, 2018
• Madagascarophis colubrinus (SCHLEGEL, 1837)
• Madagascarophis meridionalis DOMERGUE, 1987
• Madagascarophis ocellatus DOMERGUE, 1987
• Madatyphlops andasibensis (WALLACH & GLAW, 2009)
• Madatyphlops arenarius (GRANDIDIER, 1872)
• Madatyphlops boettgeri (BOULENGER, 1893)
• Madatyphlops comorensis (BOULENGER, 1889)
• Madatyphlops decorsei (MOCQUARD, 1901)
• Madatyphlops domerguei (ROUX-ESTÈVE, 1980)
• Madatyphlops madagascariensis (BOETTGER, 1877)
• Madatyphlops microcephalus (WERNER, 1909)
• Madatyphlops mucronatus (BOETTGER, 1880)
• Madatyphlops ocularis (PARKER, 1927)
• Madatyphlops reuteri (BOETTGER, 1881)
• Magliophis exiguus (COPE, 1862)
• Malacochersus tornieri (SIEBENROCK, 1903)
• Malayemys macrocephala (GRAY, 1859)
• Malayemys subtrijuga (SCHLEGEL & MÜLLER, 1845)
• Malayopython reticulatus (SCHNEIDER, 1801)
• Malayopython timoriensis (PETERS, 1876)
• Malayotyphlops castanotus (WYNN & LEVITON, 1993)
• Malayotyphlops koekkoeki (BRONGERSMA, 1934)
• Malayotyphlops manilae (TAYLOR, 1919)
• Malpolon insignitus (GEOFFROY SAINT-HILAIRE, 1827)
• Malpolon moilensis (REUSS, 1834)
• Malpolon monspessulanus (HERMANN, 1804)
• Manolepis putnami (JAN, 1863)
• Manouria emys (SCHLEGEL & MÜLLER, 1844)
• Manouria impressa (GÜNTHER, 1882)
• Marisora syntoma MCCRANIE, MATTHEWS & HEDGES, 2020
• Masticophis anthonyi (STEJNEGER, 1901)
• Masticophis aurigulus (COPE, 1861)
• Masticophis barbouri (VAN DENBURGH & SLEVIN, 1921)
• Masticophis bilineatus JAN, 1863
• Masticophis flagellum (SHAW, 1802)
• Masticophis lateralis (HALLOWELL, 1853)
• Masticophis lineatus BOCOURT, 1890
• Masticophis mentovarius (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Masticophis piceus (COPE, 1892)
• Masticophis schotti BAIRD & GIRARD, 1853
• Masticophis slevini LOWE & NORRIS, 1955
• Masticophis taeniatus (HALLOWELL, 1852)
• Mastigodryas alternatus (BOCOURT, 1884)
• Mastigodryas amarali (STUART, 1938)
• Mastigodryas boddaerti (SENTZEN, 1796)
• Mastigodryas bruesi (BARBOUR, 1914)
• Mastigodryas cliftoni (HARDY, 1964)
• Mastigodryas danieli AMARAL, 1935
• Mastigodryas dorsalis (BOCOURT, 1890)
• Mastigodryas heathii (COPE, 1875)
• Mastigodryas melanolomus (COPE, 1868)
• Mastigodryas moratoi MONTINGELLI & ZAHER, 2011
• Mastigodryas pleei (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Mastigodryas pulchriceps (COPE, 1868)
• Mastigodryas reticulatus (PETERS, 1863)
• Matobosaurus validus (SMITH, 1849)
• Mecistops leptorhynchus (BENNETT, 1835)
• Mehelya laurenti DE WITTE, 1959
• Mehelya poensis (SMITH, 1849)
• Mehelya stenophthalmus (MOCQUARD, 1887)
• Meizodon coronatus (SCHLEGEL, 1837)
• Meizodon plumbiceps (BOETTGER, 1893)
• Meizodon regularis FISCHER, 1856
• Meizodon semiornatus (PETERS, 1854)
• Melanophidium khairei GOWER, GIRI, CAPTAIN & WILKINSON, 2016
• Melanophidium wynaudense (BEDDOME, 1863)
• Melanoseps ater (GÜNTHER, 1873)
• Melanoseps loveridgei BRYGOO & ROUX-ESTÈVE, 1982
• Meroles anchietae (BOCAGE, 1867)
• Meroles cuneirostris (STRAUCH, 1867)
• Meroles knoxii (MILNE-EDWARDS, 1829)
• Meroles reticulatus (BOCAGE, 1867)
• Meroles squamulosus (PETERS, 1854)
• Meroles suborbitalis (PETERS, 1869)
• Mesalina bernoullii (SCHENKEL, 1901)
• Mesalina brevirostris BLANFORD, 1874
• Mesalina guttulata (LICHTENSTEIN, 1823)
• Mesalina watsonana (STOLICZKA, 1872)
• Mesoscincus altamirani (DUGÈS, 1891)
• Mesoscincus schwartzei (FISCHER, 1884)
• Mesotes strigatus (GÜNTHER, 1858)
• Metlapilcoatlus borealis TEPOS-RAMÍREZ, FLORES-VILLELA, VELASCO, LARA, GARCÍA-RUBIO & JADIN, 2021
• Metlapilcoatlus mexicanus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Metlapilcoatlus nummifer (RÜPPELL, 1845)
• Micrelaps muelleri BOETTGER, 1880
• Micrelaps vaillanti (MOCQUARD, 1888)
• Microcephalophis gracilis (SHAW, 1802)
• Microlophus peruvianus (LESSON, 1830)
• Micropechis ikaheca (LESSON, 1830)
• Micropisthodon ochraceus MOCQUARD, 1894
• Micruroides euryxanthus (KENNICOTT, 1860)
• Micrurus albicinctus AMARAL, 1925
• Micrurus alleni SCHMIDT, 1936
• Micrurus altirostris (COPE, 1860)
• Micrurus ancoralis (JAN, 1872)
• Micrurus annellatus PETERS, 1871
• Micrurus apiatus (JAN, 1858)
• Micrurus averyi SCHMIDT, 1939
• Micrurus baliocoryphus (COPE, 1860)
• Micrurus bocourti (JAN, 1872)
• Micrurus bogerti ROZE, 1967
• Micrurus brasiliensis ROZE, 1967
• Micrurus carvalhoi ROZE, 1967
• Micrurus circinalis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Micrurus clarki SCHMIDT, 1936
• Micrurus corallinus (MERREM, 1820)
• Micrurus decoratus (JAN, 1858)
• Micrurus diana ROZE, 1983
• Micrurus diastema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Micrurus dissoleucus COPE, 1860
• Micrurus distans KENNICOTT, 1860
• Micrurus dumerilii (JAN, 1858)
• Micrurus elegans JAN, 1858
• Micrurus ephippifer (COPE, 1886)
• Micrurus filiformis (GÜNTHER, 1859)
• Micrurus frontalis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Micrurus fulvius (LINNAEUS, 1766)
• Micrurus helleri SCHMIDT & SCHMIDT, 1925
• Micrurus hemprichii (JAN, 1858)
• Micrurus hippocrepis (PETERS, 1862)
• Micrurus ibiboboca (MERREM, 1820)
• Micrurus isozonus (COPE, 1860)
• Micrurus langsdorffi (WAGLER, 1824)
• Micrurus laticollaris PETERS, 1870
• Micrurus latifasciatus SCHMIDT, 1933
• Micrurus lemniscatus (LINNAEUS, 1758)
• Micrurus margaritiferus ROZE, 1967
• Micrurus medemi ROZE, 1967
• Micrurus meridensis ROZE, 1989
• Micrurus michoacanensis DUGES, 1891
• Micrurus mipartitus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Micrurus mosquitensis SCHMIDT, 1933
• Micrurus multifasciatus (JAN, 1858)
• Micrurus multiscutatus RENDAHL & VESTERGREN, 1940
• Micrurus nattereri SCHMIDT, 1952
• Micrurus nigrocinctus (GIRARD, 1854)
• Micrurus obscurus (JAN, 1872)
• Micrurus oliveri ROZE, 1967
• Micrurus ornatissimus (JAN, 1858)
• Micrurus ortoni (SCHMIDT, 1953)
• Micrurus paraensis CUNHA & NASCIMENTO, 1973
• Micrurus peruvianus SCHMIDT, 1936
• Micrurus petersi ROZE, 1967
• Micrurus potyguara PIRES, DA SILVA Jr, FEITOSA, PRUDENTE, PEREIRA-FILHO & ZAHER, 2014
• Micrurus proximans SMITH & CHRAPLIWY, 1958
• Micrurus psyches (DAUDIN, 1803)
• Micrurus putumayensis LANCINI, 1962
• Micrurus pyrrhocryptus (COPE, 1862)
• Micrurus remotus ROZE, 1987
• Micrurus silviae DI BERNARDO, BORGES-MARTINS & DA SILVA, 2007
• Micrurus spixii WAGLER, 1824
• Micrurus steindachneri (WERNER, 1901)
• Micrurus stewarti BARBOUR & AMARAL, 1928
• Micrurus surinamensis (CUVIER, 1816)
• Micrurus tener (BAIRD & GIRARD, 1853)
• Mimophis mahfalensis (GRANDIDIER, 1867)
• Mimophis occultus RUANE, MYERS, LO, YUEN, WELT, JUMAN, FUTTERMAN, NUSSBAUM, SCHNEIDER, BURBRINK & RAXWORTHY, 2017
• Miralia alternans (REUSS, 1834)
• Mixcoatlus barbouri (DUNN, 1919)
• Mixcoatlus melanurus (MÜLLER, 1924)
• Mochlus fernandi (BURTON, 1836)
• Mochlus sundevallii (SMITH, 1849)
• Moloch horridus GRAY, 1841
• Monopeltis anchietae (BOCAGE, 1873)
• Monopeltis capensis SMITH, 1848
• Monopeltis mauricei PARKER, 1935
• Monopeltis rhodesiana BROADLEY, GANS & VISSER, 1976
• Monopeltis sphenorhynchus (PETERS, 1879)
• Montatheris hindii (BOULENGER, 1910)
• Montivipera bornmuelleri (WERNER, 1898)
• Montivipera bulgardaghica (NILSON & ANDREN, 1985)
• Montivipera latifii (MERTENS, DAREVSKY & KLEMMER, 1967)
• Montivipera raddei (BOETTGER, 1890)
• Montivipera wagneri (NILSON & ANDRÉN, 1984)
• Montivipera xanthina (GRAY, 1849)
• Mopanveldophis zebrinus (BROADLEY & SCHÄTTI, 2000)
• Morelia bredli (GOW, 1981)
• Morelia carinata (SMITH, 1981)
• Morelia imbricata (SMITH, 1981)
• Morelia spilota (LACÉPÈDE, 1804)
• Morelia viridis (SCHLEGEL, 1872)
• Muhtarophis barani (OLGUN, AVCI, ILGAZ, ÜZÜM & YILMAZ, 2007)
• Mussurana bicolor (PERACCA, 1904)
• Mussurana montana (FRANCO, MARQUES & PUORTO, 1997)
• Mussurana quimi (FRANCO, MARQUES & PUORTO, 1997)
• Myriopholis adleri (HAHN & WALLACH, 1998)
• Myriopholis algeriensis (JACQUET, 1896)
• Myriopholis blanfordi (BOULENGER, 1890)
• Myriopholis boueti (CHABANAUD, 1917)
• Myriopholis braccianii (SCORTECCI, 1929)
• Myriopholis cairi (DUMÉRIL & BIBRON, 1844)
• Myriopholis filiformis (BOULENGER, 1899)
• Myriopholis lanzai BROADLEY, WADE & WALLACH, 2014
• Myriopholis longicauda (PETERS, 1854)
• Myriopholis macrorhyncha (JAN, 1860)
• Myriopholis macrura (BOULENGER, 1899)
• Myriopholis narirostris (PETERS, 1867)
• Myriopholis tanae (BROADLEY & WALLACH, 2007)
• Myriopholis wilsoni (HAHN, 1978)
• Myriopholis yemenica (SCORTECCI, 1933)
• Myrrophis bennettii (GRAY, 1842)
• Naja anchietae BOCAGE, 1879
• Naja annulata PETERS, 1876
• Naja annulifera PETERS, 1854
• Naja arabica SCORTECCI, 1932
• Naja atra CANTOR, 1842
• Naja christyi (BOULENGER, 1904)
• Naja haje (LINNAEUS, 1758)
• Naja kaouthia LESSON, 1831
• Naja katiensis ANGEL, 1922
• Naja melanoleuca HALLOWELL, 1857
• Naja mossambica PETERS, 1854
• Naja multifasciata (WERNER, 1902)
• Naja naja (LINNAEUS, 1758)
• Naja nigricincta BOGERT, 1940
• Naja nigricollis REINHARDT, 1843
• Naja nivea (LINNAEUS, 1758)
• Naja nubiae WÜSTER & BROADLEY, 2003
• Naja oxiana (EICHWALD, 1831)
• Naja pallida BOULENGER, 1896
• Naja peroescobari CERÍACO, MARQUES, SCHMITZ & BAUER, 2017
• Naja samarensis PETERS, 1861
• Naja siamensis LAURENTI, 1768
• Naja subfulva LAURENT, 1955
• Naja sumatrana MÜLLER, 1887
• Namibiana gracilior (BOULENGER, 1910)
• Namibiana labialis (STERNFELD, 1908)
• Namibiana occidentalis (FITZSIMONS, 1962)
• Narophis bimaculatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Narudasia festiva METHUEN & HEWITT, 1914
• Natriciteres bipostocularis BROADLEY, 1962
• Natriciteres fuliginoides (GÜNTHER, 1858)
• Natriciteres olivacea (PETERS, 1854)
• Natriciteres variegata (PETERS, 1861)
• Natrix astreptophora (LOPEZ-SEOANE, 1885)
• Natrix helvetica (LACÉPÈDE, 1789)
• Natrix maura (LINNAEUS, 1758)
• Natrix natrix (LINNAEUS, 1758)
• Natrix tessellata (LAURENTI, 1768)
• Neelaps calonotos (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Nephrurus asper GÜNTHER, 1876
• Nephrurus deleani HARVEY, 1983
• Nephrurus levis DE VIS, 1886
• Nephrurus sheai COUPER, 1994
• Nephrurus stellatus STORR, 1968
• Nephrurus vertebralis STORR, 1963
• Nephrurus wheeleri LOVERIDGE, 1932
• Nerodia clarkii (BAIRD & GIRARD, 1853)
• Nerodia cyclopion (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Nerodia erythrogaster (FORSTER, 1771)
• Nerodia fasciata (LINNAEUS, 1766)
• Nerodia harteri (TRAPIDO, 1941)
• Nerodia rhombifer (HALLOWELL, 1852)
• Nerodia sipedon (LINNAEUS, 1758)
• Nerodia taxispilota (HOLBROOK, 1838)
• Ninia atrata (HALLOWELL, 1845)
• Ninia celata MCCRANIE & WILSON, 1995
• Ninia diademata BAIRD & GIRARD, 1853
• Ninia hudsoni PARKER, 1940
• Ninia maculata (PETERS, 1861)
• Ninia psephota (COPE, 1875)
• Ninia sebae (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Ninia teresitae ANGARITA-SIERRA & LYNCH, 2017
• Ninurta coeruleopunctatus (HEWITT & METHUEN, 1913)
• Notechis scutatus (PETERS, 1861)
• Nothopsis rugosus COPE, 1871
• Notochelys platynota (GRAY, 1834)
• Nucras boulengeri NEUMANN, 1900
• Nucras holubi (STEINDACHNER, 1882)
• Nucras lalandii (MILNE-EDWARDS, 1829)
• Nucras ornata (GRAY, 1864)
• Nucras taeniolata (SMITH, 1838)
• Nyctophilopython oenpelliensis (GOW, 1977)
• Oligodon affinis GÜNTHER, 1862
• Oligodon albocinctus (CANTOR, 1839)
• Oligodon ancorus (GIRARD, 1858)
• Oligodon annamensis LEVITON, 1953
• Oligodon annulifer (BOULENGER, 1893)
• Oligodon arnensis (SHAW, 1802)
• Oligodon barroni (SMITH, 1916)
• Oligodon bitorquatus BOIE, 1827
• Oligodon brevicauda GÜNTHER, 1862
• Oligodon catenatus (BLYTH, 1855)
• Oligodon chinensis (GÜNTHER, 1888)
• Oligodon cinereus (GÜNTHER, 1864)
• Oligodon cyclurus (CANTOR, 1839)
• Oligodon deuvei DAVID, VOGEL & VAN ROOIJEN, 2008
• Oligodon dorsalis (GRAY, 1834)
• Oligodon eberhardti PELLEGRIN, 1910
• Oligodon erythrogaster BOULENGER, 1907
• Oligodon erythrorhachis WALL, 1910
• Oligodon everetti BOULENGER, 1893
• Oligodon fasciolatus (GÜNTHER, 1864)
• Oligodon formosanus (GÜNTHER, 1872)
• Oligodon hamptoni BOULENGER, 1918
• Oligodon inornatus (BOULENGER, 1914)
• Oligodon jintakunei PAUWELS, WALLACH, DAVID & CHANHOME, 2002
• Oligodon joynsoni (SMITH, 1917)
• Oligodon juglandifer (WALL, 1909)
• Oligodon kheriensis ACHARJI & RAY, 1936
• Oligodon lacroixi ANGEL & BOURRET, 1933
• Oligodon lungshenensis ZHENG & HUANG, 1978
• Oligodon macrurus (ANGEL, 1927)
• Oligodon maculatus (TAYLOR, 1918)
• Oligodon melanozonatus WALL, 1922
• Oligodon meyerinkii (STEINDACHNER, 1891)
• Oligodon modestus GÜNTHER, 1864
• Oligodon mouhoti (BOULENGER, 1914)
• Oligodon nagao DAVID, NGUYEN, NGUYEN, JIANG, CHEN, TEYNIÉ & ZIEGLER, 2012
• Oligodon notospilus GÜNTHER, 1873
• Oligodon ocellatus (MORICE, 1875)
• Oligodon octolineatus (SCHNEIDER, 1801)
• Oligodon ornatus VAN DENBURGH, 1909
• Oligodon perkinsi (TAYLOR, 1925)
• Oligodon petronellae DE ROOIJ, 1917
• Oligodon planiceps (BOULENGER, 1888)
• Oligodon praefrontalis WERNER, 1913
• Oligodon propinquus JAN, 1862
• Oligodon pulcherrimus WERNER, 1909
• Oligodon purpurascens (SCHLEGEL, 1837)
• Oligodon russelius (DAUDIN, 1803)
• Oligodon signatus (GÜNTHER, 1864)
• Oligodon sublineatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Oligodon taeniatus (GÜNTHER, 1861)
• Oligodon taeniolatus (JERDON, 1853)
• Oligodon theobaldi (GÜNTHER, 1868)
• Oligodon tillacki BANDARA, GANESH, KANISHKA, DANUSHKA, SHARMA, CAMPBELL, INEICH, VOGEL & AMARASINGHE, 2022
• Oligodon travancoricus BEDDOME, 1877
• Oligodon trilineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Oligodon venustus (JERDON, 1853)
• Oligodon vertebralis GÜNTHER, 1865
• Oligodon waandersi (BLEEKER, 1860)
• Oligodon woodmasoni (SCLATER, 1891)
• Oocatochus rufodorsatus (CANTOR, 1842)
• Opheodrys aestivus (LINNAEUS, 1766)
• Opheodrys vernalis (HARLAN, 1827)
• Ophiodes fragilis (RADDI, 1820)
• Ophiodes striatus (SPIX, 1824)
• Ophiodes vertebralis BOCOURT, 1881
• Ophiomorus tridactylus (BLYTH, 1853)
• Ophiophagus hannah (CANTOR, 1836)
• Ophisaurus attenuatus BAIRD, 1880
• Ophisaurus ventralis (LINNAEUS, 1766)
• Ophryacus smaragdinus GRÜNWALD, JONES, FRANZ-CHÁVEZ & AHUMADA-CARiLLO, 2015
• Ophryacus sphenophrys (SMITH, 1960)
• Ophryacus undulatus (JAN, 1859)
• Opisthotropis alcalai BROWN & LEVITON, 1961
• Opisthotropis andersonii (BOULENGER, 1888)
• Opisthotropis atra GÜNTHER, 1872
• Opisthotropis cheni ZHAO, 1999
• Opisthotropis guangxiensis ZHAO, JIANG & HUANG, 1978
• Opisthotropis haihaensis ZIEGLER, PHAM, NGUYEN, NGUYEN, WANG, WANG, STUART, & LE, 2019
• Opisthotropis jacobi ANGEL & BOURRET, 1933
• Opisthotropis kikuzatoi (OKADA & TAKARA, 1958)
• Opisthotropis kuatunensis POPE, 1928
• Opisthotropis lateralis BOULENGER, 1903
• Opisthotropis latouchii (BOULENGER, 1899)
• Opisthotropis laui YANG, SUNG & CHAN, 2013
• Opisthotropis maculosa STUART & CHUAYNKERN, 2007
• Opisthotropis maxwelli BOULENGER, 1914
• Opisthotropis rugosa (LIDTH DE JEUDE, 1890)
• Opisthotropis spenceri SMITH, 1918
• Opisthotropis typica (MOCQUARD, 1890)
• Oreocryptophis porphyraceus (CANTOR, 1839)
• Orientocoluber spinalis (PETERS, 1866)
• Orlitia borneensis GRAY, 1873
• Ouroborus cataphractus (BOIE, 1828)
• Ovophis convictus (STOLICZKA, 1870)
• Ovophis makazayazaya (TAKAHASHI, 1922)
• Ovophis monticola (GÜNTHER, 1864)
• Ovophis okinavensis (BOULENGER, 1892)
• Ovophis tonkinensis (BOURRET, 1934)
• Ovophis zayuensis (JIANG, 1977)
• Oxybelis aeneus (WAGLER, 1824)
• Oxybelis brevirostris (COPE, 1861)
• Oxybelis fulgidus (DAUDIN, 1803)
• Oxybelis inkaterra JADIN, JOWERS, ORLOFSKE, DUELLMAN, BLAIR & MURPHY, 2021
• Oxybelis koehleri JADIN, BLAIR, ORLOFSKE, JOWERS, RIVAS, VITT, RAY, SMITH & MURPHY, 2020
• Oxybelis microphthalmus BARBOUR & AMARAL, 1926
• Oxybelis potosiensis TAYLOR, 1941
• Oxybelis rutherfordi JADIN, BLAIR, ORLOFSKE, JOWERS, RIVAS, VITT, RAY, SMITH & MURPHY, 2020
• Oxybelis vittatus (GIRARD, 1854)
• Oxybelis wilsoni VILLA & MCCRANIE, 1995
• Oxyrhabdium leporinum (GÜNTHER, 1858)
• Oxyrhabdium modestum (DUMÉRIL, 1853)
• Oxyrhopus clathratus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Oxyrhopus doliatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Oxyrhopus fitzingeri (TSCHUDI, 1845)
• Oxyrhopus formosus (WIED-NEUWIED, 1820)
• Oxyrhopus guibei HOGE & ROMANO, 1977
• Oxyrhopus marcapatae (BOULENGER, 1902)
• Oxyrhopus melanogenys (TSCHUDI, 1845)
• Oxyrhopus occipitalis (WIED-NEUWIED, 1824)
• Oxyrhopus petolarius (LINNAEUS, 1758)
• Oxyrhopus rhombifer DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Oxyrhopus trigeminus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Oxyrhopus vanidicus LYNCH, 2009
• Oxyuranus microlepidotus (MCCOY, 1879)
• Oxyuranus scutellatus (PETERS, 1867)
• Oxyuranus temporalis DOUGHTY, MARYAN, DONNELLAN & HUTCHINSON, 2007
• Pachydactylus fasciatus BOULENGER, 1888
• Pachydactylus formosus SMITH, 1849
• Pachydactylus geitje (SPARRMAN, 1778)
• Pachydactylus haackei BRANCH, BAUER & GOOD, 1996
• Pachydactylus katanganus DE WITTE, 1953
• Pachydactylus maculatus GRAY, 1845
• Pachydactylus mariquensis SMITH, 1849
• Pachydactylus monicae BAUER, LAMB & BRANCH, 2006
• Pachydactylus punctatus PETERS, 1854
• Pachydactylus rangei (ANDERSSON, 1908)
• Pachydactylus rugosus SMITH, 1849
• Pachydactylus vansoni FITZSIMONS, 1933
• Pachydactylus visseri BAUER, LAMB & BRANCH, 2006
• Pachydactylus wahlbergii (PETERS, 1869)
• Palusophis bifossatus (RADDI, 1820)
• Panaspis maculicollis JACOBSON & BROADLEY, 2000
• Panaspis massaiensis (ANGEL, 1924)
• Panaspis namibiana CERÍACO, BRANCH & BAUER, 2018
• Panaspis seydeli (DE WITTE, 1933)
• Panaspis wahlbergii (SMITH, 1849)
• Pantherophis alleghaniensis (HOLBROOK, 1836)
• Pantherophis bairdi (YARROW, 1880)
• Pantherophis emoryi (BAIRD & GIRARD, 1853)
• Pantherophis guttatus (LINNAEUS, 1766)
• Pantherophis obsoletus (SAY, 1823)
• Pantherophis quadrivittatus (HOLBROOK, 1836)
• Pantherophis vulpinus (BAIRD & GIRARD, 1853)
• Parahydrophis mertoni (ROUX, 1910)
• Paraphimophis rusticus (COPE, 1878)
• Pararhadinaea melanogaster BOETTGER, 1898
• Parastenophis betsileanus (GÜNTHER, 1880)
• Pareas andersonii BOULENGER, 1888
• Pareas boulengeri (ANGEL, 1920)
• Pareas carinatus WAGLER, 1830
• Pareas chinensis (BARBOUR, 1912)
• Pareas formosensis (VAN DENBURGH, 1909)
• Pareas hamptoni (BOULENGER, 1905)
• Pareas iwasakii (MAKI, 1937)
• Pareas macularius THEOBALD, 1868
• Pareas margaritophorus (JAN, 1866)
• Pareas monticola (CANTOR, 1839)
• Pareas nigriceps GUO & DENG, 2009
• Pareas nuchalis (BOULENGER, 1900)
• Pareas stanleyi (BOULENGER, 1914)
• Pareas yunnanensis (VOGT, 1922)
• Paroplocephalus atriceps (STORR, 1980)
• Pedioplanis inornata (ROUX, 1907)
• Pedioplanis lineoocellata (DUMÉRIL & BIBRON, 1839)
• Pedioplanis namaquensis (DUMÉRIL & BIBRON, 1839)
• Pedioplanis serodioi PARRINHA, MARQUES, HEINICKE, KHALID, PARKER, TOLLEY, CHILDERS, CONRADIE, BAUER & CERÍACO, 2021
• Pelochelys bibroni (OWEN, 1853)
• Pelochelys cantorii GRAY, 1864
• Pelodiscus sinensis (WIEGMANN, 1835)
• Pelomedusa subrufa (BONNATERRE, 1789)
• Pelusios bechuanicus FITZSIMONS, 1932
• Pelusios broadleyi BOUR, 1986
• Pelusios castanoides HEWITT, 1931
• Pelusios nanus LAURENT, 1956
• Pelusios rhodesianus HEWITT, 1927
• Pelusios sinuatus (SMITH, 1838)
• Pelusios subniger (BONNATERRE, 1789)
• Persiophis fahimii (RAJABIZADEH, PYRON, NAZAROV, POYARKOV, ADRIAENS & HERREL, 2020)
• Petrosaurus mearnsi (STEJNEGER, 1894)
• Petrosaurus slevini (VAN DENBURGH, 1922)
• Phalotris bilineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Phalotris lemniscatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Phalotris matogrossensis DE LEMA, D’AGOSTINI & CAPPELLARI, 2005
• Phalotris mertensi (HOGE, 1955)
• Phalotris nasutus (GOMES, 1915)
• Phalotris nigrilatus FERRAREZZI, 1993
• Phalotris normanscotti CABRAL & CACCIALI, 2015
• Phalotris spegazzinii (BOULENGER, 1913)
• Phalotris suspectus (AMARAL, 1924)
• Phalotris tricolor (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Philodryas aestiva (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Philodryas agassizii (JAN, 1863)
• Philodryas arnaldoi (AMARAL, 1932)
• Philodryas baroni BERG, 1895
• Philodryas boliviana BOULENGER, 1896
• Philodryas chamissonis (WIEGMANN, 1835)
• Philodryas cordata DONNELLY & MYERS, 1991
• Philodryas livida (AMARAL, 1923)
• Philodryas mattogrossensis KOSLOWSKY, 1898
• Philodryas nattereri (STEINDACHNER, 1870)
• Philodryas olfersii (LICHTENSTEIN, 1823)
• Philodryas patagoniensis (GIRARD, 1858)
• Philodryas psammophidea GÜNTHER, 1872
• Philodryas trilineata (BURMEISTER, 1861)
• Philodryas varia (JAN, 1863)
• Philothamnus angolensis BOCAGE, 1882
• Philothamnus battersbyi LOVERIDGE, 1951
• Philothamnus bequaerti (SCHMIDT, 1923)
• Philothamnus carinatus (ANDERSSON, 1901)
• Philothamnus dorsalis (BOCAGE, 1866)
• Philothamnus girardi BOCAGE, 1893
• Philothamnus heterodermus (HALLOWELL, 1857)
• Philothamnus heterolepidotus (GÜNTHER, 1863)
• Philothamnus hoplogaster (GÜNTHER, 1863)
• Philothamnus hughesi TRAPE & ROUX-ESTÈVE, 1990
• Philothamnus irregularis (LEACH, 1819)
• Philothamnus macrops (BOULENGER, 1895)
• Philothamnus natalensis (SMITH, 1848)
• Philothamnus nitidus (GÜNTHER, 1863)
• Philothamnus occidentalis BROADLEY, 1966
• Philothamnus ornatus BOCAGE, 1872
• Philothamnus punctatus PETERS, 1867
• Philothamnus ruandae LOVERIDGE, 1951
• Philothamnus semivariegatus (SMITH, 1840)
• Philothamnus thomensis BOCAGE, 1882
• Phimophis guerini (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Phimophis guianensis (TROSCHEL, 1848)
• Phimophis vittatus (BOULENGER, 1896)
• Phisalixella arctifasciata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Phisalixella variabilis (BOULENGER, 1896)
• Phrynocephalus frontalis STRAUCH, 1876
• Phrynocephalus hispidus BEDRIAGA, 1909
• Phrynocephalus interscapularis LICHTENSTEIN & MARTENS, 1856
• Phrynocephalus kulagini BEDRIAGA, 1909
• Phrynocephalus ornatus BOULENGER, 1887
• Phrynocephalus przewalskii STRAUCH, 1876
• Phrynocephalus scutellatus (OLIVIER, 1807)
• Phrynocephalus versicolor STRAUCH, 1876
• Phrynonax poecilonotus (GÜNTHER, 1858)
• Phrynonax sexcarinatus (WAGLER, 1824)
• Phrynonax shropshirei BARBOUR & AMARAL, 1924
• Phrynosoma blainvillii GRAY, 1839
• Phrynosoma braconnieri BOCOURT, 1870
• Phrynosoma cerroense STEJNEGER, 1893
• Phrynosoma cornutum (HARLAN, 1825)
• Phrynosoma coronatum (BLAINVILLE, 1835)
• Phrynosoma douglasii (BELL, 1829)
• Phrynosoma goodei STEJNEGER, 1893
• Phrynosoma hernandesi GIRARD, 1858
• Phrynosoma mcallii (HALLOWELL, 1852)
• Phrynosoma modestum GIRARD, 1852
• Phrynosoma orbiculare (LINNAEUS, 1758)
• Phrynosoma platyrhinos GIRARD, 1852
• Phrynosoma solare GRAY, 1845
• Phrynosoma taurus BOCOURT, 1870
• Phyllodactylus bordai TAYLOR, 1942
• Phyllodactylus delcampoi MOSAUER, 1936
• Phyllodactylus homolepidurus SMITH, 1935
• Phyllodactylus isabelae CASTRO-FRANCO & URIBE-PENA, 1992
• Phyllodactylus lanei SMITH, 1935
• Phyllodactylus lupitae CASTRO-FRANCO & URIBE-PENA, 1992
• Phyllodactylus muralis TAYLOR, 1940
• Phyllodactylus nocticolus DIXON, 1964
• Phyllodactylus nolascoensis DIXON, 1964
• Phyllodactylus rupinus DIXON, 1964
• Phyllorhynchus browni STEJNEGER, 1890
• Phyllorhynchus decurtatus (COPE, 1868)
• Phyllurus platurus (SHAW, 1790)
• Phymaturus maulense NUÑEZ, VELOSO, ESPEJO, VELOSO, CORTES & ARAYA, 2010
• Physignathus cocincinus CUVIER, 1829
• Phytolopsis punctata GRAY, 1849
• Pinoyscincus jagori (PETERS, 1864)
• Pituophis catenifer (BLAINVILLE, 1835)
• Pituophis deppei (DUMÉRIL, 1853)
• Pituophis lineaticollis (COPE, 1861)
• Pituophis melanoleucus (DAUDIN, 1803)
• Pituophis ruthveni STULL, 1929
• Pituophis vertebralis (BLAINVILLE, 1835)
• Plagiopholis blakewayi BOULENGER, 1893
• Plagiopholis delacouri ANGEL, 1929
• Plagiopholis nuchalis (BOULENGER, 1893)
• Plagiopholis styani (BOULENGER, 1899)
• Platyceps atayevi (TUNIYEV & SHAMMAKOV, 1993)
• Platyceps bholanathi (SHARMA, 1976)
• Platyceps brevis (BOULENGER, 1895)
• Platyceps collaris (MÜLLER, 1878)
• Platyceps elegantissimus (GÜNTHER, 1878)
• Platyceps florulentus (GEOFFROY SAINT-HILAIRE, 1827)
• Platyceps gracilis (GÜNTHER, 1862)
• Platyceps insulanus (MERTENS, 1965)
• Platyceps karelini (BRANDT, 1838)
• Platyceps najadum (EICHWALD, 1831)
• Platyceps plinii (MERREM, 1820)
• Platyceps rhodorachis (JAN, 1863)
• Platyceps rogersi (ANDERSON, 1893)
• Platyceps saharicus SCHÄTTI & MCCARTHY, 2004
• Platyceps sinai (SCHMIDT & MARX, 1956)
• Platyceps smithii (BOULENGER, 1895)
• Platyceps thomasi (PARKER, 1931)
• Platyceps variabilis (BOULENGER, 1905)
• Platyceps ventromaculatus (GRAY, 1834)
• Platyceps vittacaudatus (BLYTH, 1854)
• Platysaurus attenboroughi WHITING, BRANCH, PEPPER & KEOGH, 2015
• Platysaurus broadleyi BRANCH & WHITING, 1997
• Platysaurus capensis SMITH, 1844
• Platysaurus intermedius MATSCHIE, 1891
• Platysaurus torquatus PETERS, 1879
• Platysternon megacephalum GRAY, 1831
• Plectrurus guentheri BEDDOME, 1863
• Plectrurus perroteti DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Plestiodon anthracinus BAIRD, 1849
• Plestiodon brevirostris (GÜNTHER, 1860)
• Plestiodon callicephalus (BOCOURT, 1879)
• Plestiodon chinensis (GRAY, 1839)
• Plestiodon colimensis (TAYLOR, 1935)
• Plestiodon copei (TAYLOR, 1933)
• Plestiodon dugesii (THOMINOT, 1883)
• Plestiodon egregius BAIRD, 1858
• Plestiodon fasciatus (LINNAEUS, 1758)
• Plestiodon gilberti (VAN DENBURGH, 1896)
• Plestiodon inexpectatus (TAYLOR, 1932)
• Plestiodon lagunensis (VAN DENBURGH, 1895)
• Plestiodon laticeps (SCHNEIDER, 1801)
• Plestiodon latiscutatus HALLOWELL, 1861
• Plestiodon lynxe (WIEGMANN, 1834)
• Plestiodon multivirgatus HALLOWELL, 1858
• Plestiodon obsoletus BAIRD & GIRARD, 1852
• Plestiodon ochoterenae (TAYLOR, 1933)
• Plestiodon parviauriculatus (TAYLOR, 1933)
• Plestiodon parvulus (TAYLOR, 1933)
• Plestiodon septentrionalis BAIRD, 1858
• Plestiodon skiltonianus BAIRD & GIRARD, 1852
• Plestiodon sumichrasti (COPE, 1867)
• Plestiodon takarai KURITA, OTA & HIKIDA, 2017
• Plestiodon tetragrammus BAIRD, 1859
• Plica plica (LINNAEUS, 1758)
• Plica umbra (LINNAEUS, 1758)
• Pliocercus elapoides COPE, 1860
• Pliocercus euryzonus COPE, 1862
• Podarcis muralis (LAURENTI, 1768)
• Podarcis siculus (RAFINESQUE-SCHMALTZ, 1810)
• Pogona barbata (CUVIER, 1829)
• Pogona henrylawsoni WELLS & WELLINGTON, 1985
• Pogona microlepidota (GLAUERT, 1952)
• Pogona minor (STERNFELD, 1919)
• Pogona nullarbor (BADHAM, 1976)
• Pogona vitticeps (AHL, 1926)
• Polemon acanthias (REINHARDT, 1861)
• Polemon ater PORTILLO, BRANCH, TILBURY, NAGY, HUGHES, KUSAMBA, MUNINGA, ARISTOTE, BEHANGANA & GREENBAUM, 2019
• Polemon barthii JAN, 1858
• Polemon bocourti MOCQUARD, 1897
• Polemon christyi (BOULENGER, 1903)
• Polemon collaris (PETERS, 1881)
• Polemon fulvicollis (MOCQUARD, 1887)
• Polemon gabonensis (DUMÉRIL, 1856)
• Polemon gracilis (BOULENGER, 1911)
• Polemon graueri (STERNFELD, 1908)
• Polemon griseiceps (LAURENT, 1947)
• Polemon neuwiedi (JAN, 1858)
• Polemon notatus (PETERS, 1882)
• Polemon robustus (DE WITTE & LAURENT, 1943)
• Polychrus acutirostris SPIX, 1825
• Polychrus marmoratus (LINNAEUS, 1758)
• Porthidium arcosae SCHÄTTI & KRAMER, 1993
• Porthidium dunni (HARTWEG & OLIVER, 1938)
• Porthidium hespere (CAMPBELL, 1976)
• Porthidium lansbergii (SCHLEGEL, 1841)
• Porthidium nasutum (BOCOURT, 1868)
• Porthidium ophryomegas (BOCOURT, 1868)
• Porthidium porrasi LAMAR, 2003
• Porthidium volcanicum SOLÓRZANO, 1995
• Porthidium yucatanicum (SMITH, 1941)
• Potamites ecpleopus (COPE, 1875)
• Pristidactylus fasciatus (D’ORBIGNY & BIBRON, 1837)
• Pristidactylus torquatus (PHILIPPI, 1861)
• Pristurus guweirensis HAAS, 1943
• Pristurus rupestris BLANFORD, 1874
• Prosymna ambigua BOCAGE, 1873
• Prosymna angolensis BOULENGER, 1915
• Prosymna bivittata WERNER, 1903
• Prosymna collaris STERNFELD, 1908
• Prosymna frontalis (PETERS, 1867)
• Prosymna greigerti MOCQUARD, 1906
• Prosymna janii BIANCONI, 1862
• Prosymna lineata (PETERS, 1871)
• Prosymna meleagris (REINHARDT, 1843)
• Prosymna pitmani BATTERSBY, 1951
• Prosymna ruspolii (BOULENGER, 1896)
• Prosymna stuhlmanni (PFEFFER, 1893)
• Prosymna sundevalli (SMITH, 1849)
• Prosymna visseri FITZSIMONS, 1959
• Protobothrops cornutus (SMITH, 1930)
• Protobothrops dabieshanensis HUANG, PAN, HAN, ZHANG, HOU, YU, ZHENG & ZHANG, 2012
• Protobothrops flavoviridis (HALLOWELL, 1861)
• Protobothrops himalayanus PAN, CHETTRI, YANG, JIANG, WANG, ZHANG & VOGEL, 2013
• Protobothrops jerdonii (GÜNTHER, 1875)
• Protobothrops kaulbacki (SMITH, 1940)
• Protobothrops mangshanensis (ZHAO, 1990)
• Protobothrops maolanensis YANG, ORLOV & WANG, 2011
• Protobothrops mucrosquamatus (CANTOR, 1839)
• Protobothrops sieversorum (ZIEGLER, HERRMANN, DAVID, ORLOV & PAUWELS, 2000)
• Protobothrops tokarensis (NAGAI, 1928)
• Protobothrops trungkhanhensis ORLOV, RYABOV & NGUYEN, 2009
• Protobothrops xiangchengensis (ZHAO, JIANG & HUANG, 1978)
• Psammobates tentorius (BELL, 1828)
• Psammodynastes pictus GÜNTHER, 1858
• Psammodynastes pulverulentus (BOIE, 1827)
• Psammophis aegyptius MARX, 1958
• Psammophis angolensis (BOCAGE, 1872)
• Psammophis biseriatus PETERS, 1881
• Psammophis brevirostris PETERS, 1881
• Psammophis condanarus (MERREM, 1820)
• Psammophis crucifer (DAUDIN, 1803)
• Psammophis elegans (SHAW, 1802)
• Psammophis indochinensis SMITH, 1943
• Psammophis jallae PERACCA, 1896
• Psammophis leightoni BOULENGER, 1902
• Psammophis leithii GÜNTHER, 1869
• Psammophis leopardinus BOCAGE, 1887
• Psammophis lineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Psammophis lineolatus (BRANDT, 1838)
• Psammophis longifrons BOULENGER, 1890
• Psammophis mossambicus PETERS, 1882
• Psammophis notostictus PETERS, 1867
• Psammophis orientalis BROADLEY, 1977
• Psammophis phillipsii (HALLOWELL, 1844)
• Psammophis praeornatus (SCHLEGEL, 1837)
• Psammophis punctulatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Psammophis rukwae BROADLEY, 1966
• Psammophis schokari (FORSKÅL, 1775)
• Psammophis sibilans (LINNAEUS, 1758)
• Psammophis subtaeniatus PETERS, 1882
• Psammophis sudanensis WERNER, 1919
• Psammophis tanganicus LOVERIDGE, 1940
• Psammophis trigrammus GÜNTHER, 1865
• Psammophis zambiensis HUGHES & WADE, 2002
• Psammophylax kellyi CONRADIE, KEATES & EDWARDS, 2019
• Psammophylax multisquamis (LOVERIDGE, 1932)
• Psammophylax rhombeatus (LINNAEUS, 1758)
• Psammophylax tritaeniatus (GÜNTHER, 1868)
• Psammophylax variabilis GÜNTHER, 1893
• Pseudagkistrodon rudis (BOULENGER, 1906)
• Pseudalsophis biserialis (GÜNTHER, 1860)
• Pseudalsophis dorsalis (STEINDACHNER, 1876)
• Pseudalsophis elegans (TSCHUDI, 1845)
• Pseudalsophis occidentalis (VAN DENBURGH, 1912)
• Pseudalsophis slevini (VAN DENBURGH, 1912)
• Pseudalsophis steindachneri (VAN DENBURGH, 1912)
• Pseudalsophis thomasi ZAHER, YÁNEZ-MUÑOZ, RODRIGUES, GRABOSKI, MACHADO, ALTAMIRANO-BENAVIDES, BONATTO & GRAZZIOTIN, 2018
• Pseudaspis cana (LINNAEUS, 1758)
• Pseudechis australis (GRAY, 1842)
• Pseudechis butleri SMITH, 1982
• Pseudechis papuanus PETERS & DORIA, 1878
• Pseudechis porphyriacus (SHAW, 1794)
• Pseudechis weigeli (WELLS & WELLINGTON, 1987)
• Pseudelaphe flavirufa (COPE, 1867)
• Pseudoboa coronata SCHNEIDER, 1801
• Pseudoboa haasi (BOETTGER, 1905)
• Pseudoboa martinsi ZAHER, OLIVEIRA & FRANCO, 2008
• Pseudoboa neuwiedii (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudoboa nigra (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudoboodon boehmei RASMUSSEN & LARGEN, 1992
• Pseudoboodon gascae PERACCA, 1897
• Pseudoboodon lemniscatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudoboodon sandfordorum SPAWLS, 2004
• Pseudocerastes fieldi SCHMIDT, 1930
• Pseudocerastes persicus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudocerastes urarachnoides BOSTANCHI, ANDERSON, KAMI & PAPENFUSS, 2006
• Pseudocordylus melanotus (SMITH, 1838)
• Pseudocordylus transvaalensis FITZSIMONS, 1943
• Pseudoeryx plicatilis (LINNAEUS, 1758)
• Pseudoeryx relictualis SCHARGEL, RIVAS-FUENMAYOR, BARROS, PÉFAUR & NAVARETTE, 2007
• Pseudoferania polylepis (FISCHER, 1886)
• Pseudoficimia frontalis (COPE, 1864)
• Pseudogonatodes guianensis PARKER, 1935
• Pseudohaje goldii (BOULENGER, 1895)
• Pseudohaje nigra GÜNTHER, 1858
• Pseudoindotyphlops exiguus (JAN, 1864)
• Pseudoindotyphlops porrectus (STOLICZKA, 1871)
• Pseudoleptodeira latifasciata (GÜNTHER, 1894)
• Pseudonaja affinis GÜNTHER, 1872
• Pseudonaja inframacula (WAITE, 1925)
• Pseudonaja mengdeni WELLS & WELLINGTON, 1985
• Pseudonaja modesta (GÜNTHER, 1872)
• Pseudonaja nuchalis GÜNTHER, 1858
• Pseudonaja textilis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudoplectrurus canaricus (BEDDOME, 1870)
• Pseudopus apodus (PALLAS, 1775)
• Pseudorabdion collaris (MOCQUARD, 1892)
• Pseudorabdion eiselti INGER & LEVITON, 1961
• Pseudorabdion longiceps (CANTOR, 1847)
• Pseudorabdion mcnamarae (TAYLOR, 1917)
• Pseudorabdion oxycephalum (GÜNTHER, 1858)
• Pseudorabdion taylori LEVITON & BROWN, 1959
• Pseudorabdion torquatum (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Pseudotrapelus sinaitus (HEYDEN, 1827)
• Pseudoxenodon bambusicola VOGT, 1922
• Pseudoxenodon inornatus (BOIE, 1827)
• Pseudoxenodon karlschmidti POPE, 1928
• Pseudoxenodon macrops (BLYTH, 1855)
• Pseudoxenodon stejnegeri BARBOUR, 1908
• Pseudoxyrhopus ambreensis MOCQUARD, 1894
• Psomophis genimaculatus (BOETTGER, 1885)
• Psomophis joberti (SAUVAGE, 1884)
• Psomophis obtusus (COPE, 1863)
• Ptenopus carpi BRAIN, 1962
• Ptenopus garrulus (SMITH, 1849)
• Ptenopus kochi HAACKE, 1964
• Ptyas carinata (GÜNTHER, 1864)
• Ptyas doriae (BOULENGER, 1888)
• Ptyas fusca (GÜNTHER, 1858)
• Ptyas herminae (BOETTGER, 1895)
• Ptyas korros (SCHLEGEL, 1837)
• Ptyas major (GÜNTHER, 1858)
• Ptyas mucosa (LINNAEUS, 1758)
• Ptyas multicincta (ROUX, 1907)
• Ptyas nigromarginata (BLYTH, 1855)
• Ptyas semicarinata (HALLOWELL, 1861)
• Ptyodactylus hasselquistii (DONNDORFF, 1798)
• Pygopus lepidopodus (LACÉPÈDE, 1804)
• Python anchietae BOCAGE, 1887
• Python bivittatus KUHL, 1820
• Python breitensteini STEINDACHNER, 1881
• Python brongersmai STULL, 1938
• Python curtus SCHLEGEL, 1872
• Python molurus (LINNAEUS, 1758)
• Python natalensis SMITH, 1840
• Python regius (SHAW, 1802)
• Python sebae (GMELIN, 1789)
• Pythonodipsas carinata GÜNTHER, 1868
• Rabdion forsteni DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Ramphotyphlops acuticaudus (PETERS, 1878)
• Ramphotyphlops angusticeps (PETERS, 1878)
• Ramphotyphlops bipartitus (SAUVAGE, 1879)
• Ramphotyphlops depressus PETERS, 1880
• Ramphotyphlops exocoeti (BOULENGER, 1887)
• Ramphotyphlops flaviventer (PETERS, 1864)
• Ramphotyphlops hatmaliyeb WYNN, REYNOLDS, BUDEN, FALANRUW & LYNCH, 2012
• Ramphotyphlops lineatus (SCHLEGEL, 1839)
• Ramphotyphlops mollyozakiae WALLACH, 2021
• Ramphotyphlops multilineatus (SCHLEGEL, 1839)
• Rankinia diemensis (GRAY, 1841)
• Regina grahamii BAIRD & GIRARD, 1853
• Regina septemvittata (SAY, 1825)
• Rena dugesii (BOCOURT, 1881)
• Rena dulcis BAIRD & GIRARD, 1853
• Rena humilis BAIRD & GIRARD, 1853
• Rena maxima (LOVERIDGE, 1932)
• Rena unguirostris (BOULENGER, 1902)
• Rhabdophis adleri ZHAO, 1997
• Rhabdophis angeli (BOURRET, 1934)
• Rhabdophis auriculatus (GÜNTHER, 1858)
• Rhabdophis barbouri (TAYLOR, 1922)
• Rhabdophis callistus (GÜNTHER, 1873)
• Rhabdophis ceylonensis (GÜNTHER, 1858)
• Rhabdophis chrysargoides (GÜNTHER, 1858)
• Rhabdophis chrysargos (SCHLEGEL, 1837)
• Rhabdophis conspicillatus (GÜNTHER, 1872)
• Rhabdophis flaviceps (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Rhabdophis guangdongensis ZHU, WANG, TAKEUCHI & ZHAO, 2014
• Rhabdophis helleri (SCHMIDT, 1925)
• Rhabdophis himalayanus (GÜNTHER, 1864)
• Rhabdophis lateralis (BERTHOLD, 1859)
• Rhabdophis leonardi (WALL, 1923)
• Rhabdophis lineatus (PETERS, 1861)
• Rhabdophis murudensis (SMITH, 1925)
• Rhabdophis nigrocinctus (BLYTH, 1856)
• Rhabdophis nuchalis (BOULENGER, 1891)
• Rhabdophis pentasupralabialis JIANG & ZHAO, 1983
• Rhabdophis plumbicolor (CANTOR, 1839)
• Rhabdophis rhodomelas (BOIE, 1827)
• Rhabdophis siamensis (MELL, 1931)
• Rhabdophis subminiatus (SCHLEGEL, 1837)
• Rhabdophis swinhonis (GÜNTHER, 1868)
• Rhabdophis tigrinus (BOIE, 1826)
• Rhabdops olivaceus (BEDDOME, 1863)
• Rhachidelus brazili BOULENGER, 1908
• Rhadinaea calligaster (COPE, 1875)
• Rhadinaea decorata (GÜNTHER, 1858)
• Rhadinaea flavilata (COPE, 1871)
• Rhadinaea fulvivittis COPE, 1875
• Rhadinaea gaigeae BAILEY, 1937
• Rhadinaea hesperia BAILEY, 1940
• Rhadinaea laureata (GÜNTHER, 1868)
• Rhadinaea macdougalli SMITH & LANGEBARTEL, 1949
• Rhadinaea omiltemana (GÜNTHER, 1894)
• Rhadinaea pulveriventris BOULENGER, 1896
• Rhadinaea sargenti DUNN & BAILEY, 1939
• Rhadinaea taeniata (PETERS, 1863)
• Rhadinella anachoreta (SMITH & CAMPBELL, 1994)
• Rhadinella godmani (GÜNTHER, 1865)
• Rhadinella hannsteini (STUART, 1949)
• Rhadinella hempsteadae (STUART & BAILEY, 1941)
• Rhadinella kanalchutchan (MENDELSON & KIZIRIAN, 1995)
• Rhadinella kinkelini (BOETTGER, 1898)
• Rhadinella lachrymans (COPE, 1870)
• Rhadinella montecristi (MERTENS, 1952)
• Rhadinella pegosalyta (MCCRANIE, 2006)
• Rhadinella pilonaorum (STUART, 1954)
• Rhadinella posadasi (SLEVIN, 1936)
• Rhadinella rogerromani (KÖHLER & MCCRANIE, 1999)
• Rhadinella schistosa SMITH, 1941
• Rhadinella serperaster (COPE, 1871)
• Rhadinella stadelmani (STUART & BAILEY, 1941)
• Rhadinella tolpanorum (HOLM & CRUZ-DÍAZ, 1994)
• Rhadinophanes monticola MYERS & CAMPBELL, 1981
• Rhamnophis aethiopissa GÜNTHER, 1862
• Rhamnophis batesii (BOULENGER, 1908)
• Rhamphiophis maradiensis CHIRIO & INEICH, 1991
• Rhamphiophis oxyrhynchus (REINHARDT, 1843)
• Rhamphiophis rostratus PETERS, 1854
• Rhamphiophis rubropunctatus (FISCHER, 1884)
• Rhampholeon chapmanorum TILBURY, 1992
• Rhampholeon nchisiensis (LOVERIDGE, 1953)
• Rhampholeon platyceps GÜNTHER, 1893
• Rhampholeon spectrum (BUCHHOLZ, 1874)
• Rhineura floridana (BAIRD, 1858)
• Rhinobothryum bovallii (ANDERSSON, 1916)
• Rhinobothryum lentiginosum (SCOPOLI, 1785)
• Rhinocheilus antonii DUGÈS, 1886
• Rhinocheilus etheridgei GRISMER, 1990
• Rhinocheilus lecontei BAIRD & GIRARD, 1853
• Rhinoclemmys areolata (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
• Rhinoclemmys pulcherrima (GRAY, 1855)
• Rhinophis drummondhayi WALL, 1921
• Rhinophis homolepis HEMPRICH, 1820
• Rhinophis oxyrhynchus (SCHNEIDER, 1801)
• Rhinophis phillipsi (NICHOLLS, 1929)
• Rhinophis saffragamus (KELAART, 1853)
• Rhinophis sanguineus BEDDOME, 1863
• Rhinotyphlops ataeniatus (BOULENGER, 1912)
• Rhinotyphlops boylei (FITZSIMONS, 1932)
• Rhinotyphlops lalandei (SCHLEGEL, 1839)
• Rhinotyphlops leucocephalus (PARKER, 1930)
• Rhinotyphlops schinzi (BOETTGER, 1887)
• Rhinotyphlops scorteccii (GANS & LAURENT, 1965)
• Rhinotyphlops unitaeniatus (PETERS, 1878)
• Rhoptropella ocellata (BOULENGER, 1885)
• Rhynchocalamus melanocephalus (JAN, 1862)
• Rhynchocalamus satunini (NIKOLSKY, 1899)
• Rieppeleon brachyurus (GÜNTHER, 1893)
• Rodriguesophis chui (RODRIGUES, 1993)
• Rodriguesophis iglesiasi (GOMES, 1915)
• Saara loricata (BLANFORD, 1874)
• Sahyadriophis beddomei (GÜNTHER, 1864)
• Saltuarius cornutus (OGILBY, 1892)
• Salvadora bairdi JAN, 1860
• Salvadora deserticola SCHMIDT, 1940
• Salvadora grahamiae BAIRD & GIRARD, 1853
• Salvadora hexalepis (COPE, 1867)
• Salvadora intermedia HARTWEG, 1940
• Salvadora lemniscata (COPE, 1895)
• Salvadora lineata SCHMIDT, 1940
• Salvadora mexicana (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Salvator merianae DUMÉRIL & BIBRON, 1839
• Sanzinia madagascariensis (DUMÉRIL & BIBRON, 1844)
• Saphenophis antioquiensis (DUNN, 1943)
• Saphenophis boursieri (JAN, 1867)
• Saproscincus mustelinus (O’SHAUGHNESSY, 1874)
• Sarada deccanensis (JERDON, 1870)
• Sauromalus ater DUMÉRIL, 1856
• Scaphiodontophis annulatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Scaphiodontophis venustissimus (GÜNTHER, 1894)
• Scaphiophis albopunctatus PETERS, 1870
• Sceloporus aeneus WIEGMANN, 1828
• Sceloporus angustus (DICKERSON, 1919)
• Sceloporus becki VAN DENBURGH, 1905
• Sceloporus bicanthalis SMITH, 1937
• Sceloporus bimaculosus PHELAN & BRATTSTROM, 1955
• Sceloporus bulleri BOULENGER, 1895
• Sceloporus cautus SMITH, 1938
• Sceloporus chrysostictus COPE, 1866
• Sceloporus clarkii BAIRD & GIRARD, 1852
• Sceloporus consobrinus BAIRD & GIRARD, 1854
• Sceloporus cowlesi LOWE & NORRIS, 1956
• Sceloporus cozumelae JONES, 1927
• Sceloporus cupreus BOCOURT, 1873
• Sceloporus cyanogenys COPE, 1885
• Sceloporus cyanostictus AXTELL & AXTELL, 1971
• Sceloporus dugesii BOCOURT, 1874
• Sceloporus edwardtaylori SMITH, 1936
• Sceloporus formosus WIEGMANN, 1834
• Sceloporus gadoviae BOULENGER, 1905
• Sceloporus goldmani SMITH, 1937
• Sceloporus graciosus BAIRD & GIRARD, 1852
• Sceloporus grandaevus (DICKERSON, 1919)
• Sceloporus heterolepis BOULENGER, 1895
• Sceloporus jalapae GÜNTHER, 1890
• Sceloporus jarrovii COPE, 1875
• Sceloporus lundelli SMITH, 1939
• Sceloporus maculosus SMITH, 1934
• Sceloporus magister HALLOWELL, 1854
• Sceloporus marmoratus HALLOWELL, 1852
• Sceloporus melanogaster COPE, 1885
• Sceloporus merriami STEJNEGER, 1904
• Sceloporus nelsoni COCHRAN, 1923
• Sceloporus oberon SMITH & BROWN, 1941
• Sceloporus occidentalis BAIRD & GIRARD, 1852
• Sceloporus ochoterenae SMITH, 1934
• Sceloporus orcutti STEJNEGER, 1893
• Sceloporus ornatus BAIRD, 1859
• Sceloporus parvus SMITH, 1934
• Sceloporus poinsettii BAIRD & GIRARD, 1852
• Sceloporus pyrocephalus COPE, 1864
• Sceloporus scalaris WIEGMANN, 1828
• Sceloporus serrifer COPE, 1866
• Sceloporus siniferus COPE, 1870
• Sceloporus slevini SMITH, 1937
• Sceloporus smithi HARTWEG & OLIVER, 1937
• Sceloporus squamosus BOCOURT, 1874
• Sceloporus stejnegeri SMITH, 1942
• Sceloporus subniger POGLAYEN & SMITH, 1958
• Sceloporus sugillatus SMITH, 1942
• Sceloporus teapensis GÜNTHER, 1890
• Sceloporus torquatus WIEGMANN, 1828
• Sceloporus tristichus COPE, 1875
• Sceloporus undulatus (BOSC & DAUDIN, 1801)
• Sceloporus utiformis COPE, 1864
• Sceloporus vandenburgianus COPE, 1896
• Sceloporus variabilis WIEGMANN, 1834
• Sceloporus virgatus SMITH, 1938
• Scelotes bidigittatus FITZSIMONS, 1930
• Scelotes capensis (SMITH, 1849)
• Scelotes guentheri BOULENGER, 1887
• Scelotes mirus (ROUX, 1907)
• Scincella caudaequinae (SMITH, 1951)
• Scincella cherriei (COPE, 1893)
• Scincella lateralis (SAY, 1822)
• Scincella modesta (GÜNTHER, 1864)
• Scincella reevesii (GRAY, 1839)
• Scincella silvicola (TAYLOR, 1937)
• Scincella stuarti (SMITH, 1941)
• Scincus mitranus ANDERSON, 1871
• Scincus scincus (LINNAEUS, 1758)
• Scolecophis atrocinctus (SCHLEGEL, 1837)
• Seminatrix pygaea (COPE, 1871)
• Senticolis triaspis (COPE, 1866)
• Sepsina angolensis BOCAGE, 1866
• Shinisaurus crocodilurus AHL, 1930
• Siagonodon borrichianus (DEGERBØL, 1923)
• Siagonodon septemstriatus (SCHNEIDER, 1801)
• Sibon annulatus (GÜNTHER, 1872)
• Sibon anthracops (COPE, 1868)
• Sibon argus (COPE, 1875)
• Sibon ayerbeorum VERA-PÉREZ, 2019
• Sibon bevridgelyi ARTEAGA, SALAZAR-VALENZUELA, MEBERT, PEÑAFIEL, AGUIAR, SÁNCHEZ-NIVICELA, PYRON, COLSTON, CISNEROS-HEREDIA, YÁNEZ-MUÑOZ, VENEGAS, GUAYASAMIN & TORRES-CARVAJAL, 2018
• Sibon carri (SHREVE, 1951)
• Sibon dimidiatus (GÜNTHER, 1872)
• Sibon dunni PETERS, 1957
• Sibon lamari SOLÓRZANO, 2001
• Sibon longifrenis (STEJNEGER, 1909)
• Sibon manzanaresi MCCRANIE, 2007
• Sibon miskitus MCCRANIE, 2006
• Sibon nebulatus (LINNAEUS, 1758)
• Sibynophis collaris (GRAY, 1853)
• Sibynophis geminatus (BOIE, 1826)
• Sibynophis melanocephalus (GRAY, 1834)
• Sibynophis sagittarius (CANTOR, 1839)
• Sibynophis subpunctatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Siderolamprus atitlanensis (SMITH, 1950)
• Siderolamprus enneagrammus COPE, 1861
• Siebenrockiella crassicollis (GRAY, 1831)
• Simalia amethistina (SCHNEIDER, 1801)
• Simalia boeleni (BRONGERSMA, 1953)
• Simalia kinghorni (STULL, 1933)
• Simalia tracyae (HARVEY, BARKER, AMMERMAN & CHIPPINDALE, 2000)
• Simophis rhinostoma (SCHLEGEL, 1837)
• Simoselaps anomalus (STERNFELD, 1919)
• Simoselaps bertholdi (JAN, 1859)
• Simoselaps littoralis (STORR, 1968)
• Simoselaps minimus (WORRELL, 1960)
• Sinomicrurus annularis (GÜNTHER, 1864)
• Sinomicrurus boettgeri (FRITZE, 1894)
• Sinomicrurus gorei (WALL, 1909)
• Sinomicrurus iwasakii (MAKI, 1935)
• Sinomicrurus japonicus (GÜNTHER, 1868)
• Sinomicrurus kelloggi (POPE, 1928)
• Sinomicrurus macclellandi (REINHARDT, 1844)
• Sinomicrurus peinani LIU, YAN, HOU, WANG, NGUYEN, MURPHY, CHE & GUO, 2020
• Sinomicrurus sauteri (STEINDACHNER, 1913)
• Siphlophis ayauma SHEEHY III, YÁNEZ-MUÑOZ, VALENCIA & SMITH, 2014
• Siphlophis cervinus (LAURENTI, 1768)
• Siphlophis compressus (DAUDIN, 1803)
• Siphlophis leucocephalus (GÜNTHER, 1863)
• Siphlophis longicaudatus (ANDERSSON, 1901)
• Siphlophis pulcher (RADDI, 1820)
• Siphlophis worontzowi (PRADO, 1940)
• Sistrurus catenatus (RAFINESQUE, 1818)
• Sistrurus miliarius (LINNAEUS, 1766)
• Sistrurus tergeminus (SAY, 1823)
• Sitana ponticeriana CUVIER, 1829
• Smaug breyeri (VAN DAM, 1921)
• Smaug giganteus (SMITH, 1844)
• Smaug swazicus BATES & STANLEY, 2020
• Smaug warreni (BOULENGER, 1908)
• Smithophis arunachalensis DAS, DEEPAK, CAPTAIN, WADE & GOWER, 2020
• Smithophis atemporalis GIRI, GOWER, DAS, LALREMSANGA, LALRONUNGA, CAPTAIN & DEEPAK, 2019
• Smithophis bicolor (BLYTH, 1855)
• Smithophis linearis VOGEL, CHEN, DEEPAK, GOWER, SHI, DING & HOU, 2020
• Sonora aemula (COPE, 1879)
• Sonora annulata (BAIRD, 1859)
• Sonora cincta (COPE, 1861)
• Sonora episcopa (KENNICOTT, 1859)
• Sonora fasciata (COPE, 1892)
• Sonora michoacanensis (DUGÈS, 1885)
• Sonora mutabilis STICKEL, 1943
• Sonora occipitalis (HALLOWELL, 1854)
• Sonora palarostris KLAUBER, 1937
• Sonora punctatissima (VAN DENBURGH & SLEVIN, 1921)
• Sonora semiannulata BAIRD & GIRARD, 1853
• Sonora straminea (COPE, 1860)
• Sonora taylori (BOULENGER, 1894)
• Spalerosophis arenarius (BOULENGER, 1890)
• Spalerosophis atriceps (FISCHER, 1885)
• Spalerosophis diadema (SCHLEGEL, 1837)
• Spalerosophis dolichospilus (WERNER, 1923)
• Spalerosophis microlepis JAN, 1865
• Sphaerodactylus exsul BARBOUR, 1914
• Sphaerodactylus lineolatus LICHTENSTEIN & MARTENS, 1856
• Sphenomorphus annamiticus (BOETTGER, 1901)
• Sphenomorphus fasciatus (GRAY, 1845)
• Sphenomorphus indicus (GRAY, 1853)
• Sphenomorphus maculatus (BLYTH, 1853)
• Sphenomorphus praesignis (BOULENGER, 1900)
• Sphenomorphus scotophilus (BOULENGER, 1900)
• Sphenomorphus stellatus (BOULENGER, 1900)
• Sphenomorphus striatafaucium QUAH & GRISMER, 2025
• Spilotes pullatus (LINNAEUS, 1758)
• Spilotes sulphureus (WAGLER, 1824)
• Stegonotus australis (GÜNTHER, 1872)
• Stegonotus borneensis INGER, 1967
• Stegonotus caligocephalus KAISER, LAPIN, O’SHEA & KAISER, 2020
• Stegonotus cucullatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Stegonotus diehli LINDHOLM, 1905
• Stegonotus florensis (DE ROOIJ, 1917)
• Stegonotus guentheri BOULENGER, 1895
• Stegonotus lividus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Stegonotus modestus (SCHLEGEL, 1837)
• Stegonotus muelleri DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Stegonotus parvus (MEYER, 1874)
• Stegonotus poechi WERNER, 1924
• Stegonotus reticulatus BOULENGER, 1895
• Stenocercus fimbriatus AVILA-PIRES, 1995
• Stenocercus roseiventris D’ORBIGNY in DUMÉRIL & BIBRON, 1837
• Stenodactylus doriae (BLANFORD, 1874)
• Stenorrhina degenhardtii (BERTHOLD, 1846)
• Stenorrhina freminvillei (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Sternotherus odoratus (LATREILLE, 1802)
• Stichophanes ningshaanensis (YUAN, 1983)
• Stigmochelys pardalis (BELL, 1828)
• Stoliczkia khasiensis JERDON, 1870
• Storeria dekayi (HOLBROOK, 1839)
• Storeria occipitomaculata (STORER, 1839)
• Storeria storerioides (COPE, 1866)
• Strobilurus torquatus WIEGMANN, 1834
• Subdoluseps bowringii (GÜNTHER, 1864)
• Subsessor bocourti (JAN, 1865)
• Sumatranus albomaculata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Sundatyphlops polygrammicus (SCHLEGEL, 1839)
• Suta fasciata (ROSÉN, 1905)
• Suta flagellum (MCCOY, 1878)
• Suta gouldii (GRAY, 1841)
• Suta monachus (STORR, 1964)
• Suta nigriceps (GÜNTHER, 1863)
• Suta suta (PETERS, 1863)
• Symphimus leucostomus COPE, 1869
• Sympholis lippiens COPE, 1862
• Synophis bicolor PERACCA, 1896
• Synophis calamitus HILLIS, 1990
• Synophis lasallei (NICÉFORO-MARIA, 1950)
• Synophis plectovertebralis SHEIL & GRANT, 2001
• Synophis zaheri PYRON, GUAYASAMIN, PEÑAFIEL, BUSTAMANTE & ARTEAGA, 2015
• Tachymenis ocellata DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Tachymenis peruviana WIEGMANN, 1834
• Tachymenis trigonatus (LEYBOLD, 1873)
• Taeniophallus brevirostris (PETERS, 1863)
• Taeniophallus nebularis SCHARGEL, RIVAS & MYERS, 2005
• Taeniophallus nicagus (COPE, 1868)
• Takydromus sexlineatus DAUDIN, 1802
• Takydromus sylvaticus (POPE, 1928)
• Tantilla alticola (BOULENGER, 1903)
• Tantilla armillata COPE, 1875
• Tantilla atriceps (GÜNTHER, 1895)
• Tantilla bairdi STUART, 1941
• Tantilla bocourti (GÜNTHER, 1895)
• Tantilla briggsi SAVITZKY & SMITH, 1971
• Tantilla calamarina COPE, 1866
• Tantilla capistrata COPE, 1875
• Tantilla cascadae WILSON & MEYER, 1981
• Tantilla ceboruca CANSECO-MÁRQUEZ, SMITH, PONCE-CAMPOS, FLORES-VILLELA & CAMPBELL, 2007
• Tantilla coronata BAIRD & GIRARD, 1853
• Tantilla cucullata MINTON, 1956
• Tantilla cuniculator SMITH, 1939
• Tantilla deppei (BOCOURT, 1883)
• Tantilla flavilineata SMITH & BURGER, 1950
• Tantilla gracilis BAIRD & GIRARD, 1853
• Tantilla hendersoni STAFFORD, 2004
• Tantilla hobartsmithi TAYLOR, 1937
• Tantilla impensa CAMPBELL, 1998
• Tantilla jani (GÜNTHER, 1895)
• Tantilla johnsoni WILSON, VAUGHN & DIXON, 1999
• Tantilla lempira WILSON & MENA, 1980
• Tantilla melanocephala (LINNAEUS, 1758)
• Tantilla moesta (GÜNTHER, 1863)
• Tantilla nigriceps KENNICOTT, 1860
• Tantilla oaxacae WILSON & MEYER, 1971
• Tantilla planiceps (BLAINVILLE, 1835)
• Tantilla relicta TELFORD, 1966
• Tantilla reticulata (COPE, 1860)
• Tantilla rubra COPE, 1875
• Tantilla ruficeps (COPE, 1894)
• Tantilla schistosa (BOCOURT, 1883)
• Tantilla semicincta (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Tantilla sertula WILSON & CAMPBELL, 2000
• Tantilla slavensi PÉREZ-HIGAREDA, SMITH & SMITH, 1985
• Tantilla striata DUNN, 1928
• Tantilla supracincta (PETERS, 1863)
• Tantilla taeniata BOCOURT, 1883
• Tantilla tayrae WILSON, 1983
• Tantilla tecta CAMPBELL & SMITH, 1997
• Tantilla tjiasmantoi KOCH & VENEGAS, 2016
• Tantilla tritaeniata SMITH & WILLIAMS, 1966
• Tantilla vermiformis (HALLOWELL, 1861)
• Tantilla vulcani CAMPBELL, 1998
• Tantilla wilcoxi STEJNEGER, 1902
• Tantilla yaquia SMITH, 1942
• Tantillita brevissima (TAYLOR, 1937)
• Tantillita canula (COPE, 1875)
• Tantillita lintoni (SMITH, 1940)
• Telescopus beetzi (BARBOUR, 1922)
• Telescopus dhara (FORSKÅL, 1775)
• Telescopus fallax FLEISCHMANN, 1831
• Telescopus finkeldeyi HAACKE, 2013
• Telescopus gezirae BROADLEY, 1994
• Telescopus hoogstraali SCHMIDT & MARX, 1956
• Telescopus nigriceps (AHL, 1924)
• Telescopus obtusus (REUSS, 1834)
• Telescopus pulcher (SCORTECCI, 1935)
• Telescopus rhinopoma (BLANFORD, 1874)
• Telescopus semiannulatus SMITH, 1849
• Telescopus tessellatus (WALL, 1908)
• Telescopus tripolitanus (WERNER, 1909)
• Telescopus variegatus (REINHARDT, 1843)
• Terrapene mexicana (GRAY, 1849)
• Terrapene ornata (AGASSIZ, 1857)
• Tetracheilostoma bilineatum (SCHLEGEL, 1839)
• Tetradactylus ellenbergeri (ANGEL, 1922)
• Thamnodynastes longicaudus FRANCO, FERREIRA, MARQUES & SAZIMA, 2003
• Thamnodynastes pallidus (LINNAEUS, 1758)
• Thamnodynastes sertanejo BAILEY, THOMAS & DA SILVA, 2005
• Thamnodynastes silvai TREVINE, CAICEDO-PORTILLA, HOOGMOED, THOMAS, FRANCO, MONTINGELLI, OSORNO-MUÑOZ & ZAHER, 2021
• Thamnophis atratus KENNICOTT, 1860
• Thamnophis bogerti ROSSMAN & BURBRINK, 2005
• Thamnophis brachystoma (COPE, 1892)
• Thamnophis butleri (COPE, 1889)
• Thamnophis chrysocephalus (COPE, 1885)
• Thamnophis copei DUGÈS, 1879
• Thamnophis couchii (KENNICOTT, 1859)
• Thamnophis cyrtopsis (KENNICOTT, 1860)
• Thamnophis elegans (BAIRD & GIRARD, 1853)
• Thamnophis eques (REUSS, 1834)
• Thamnophis errans SMITH, 1942
• Thamnophis exsul ROSSMAN, 1969
• Thamnophis foxi ROSSMAN & BLANEY, 1968
• Thamnophis fulvus (BOCOURT, 1893)
• Thamnophis gigas FITCH, 1940
• Thamnophis godmani (GÜNTHER, 1894)
• Thamnophis hammondii (KENNICOTT, 1860)
• Thamnophis marcianus (BAIRD & GIRARD, 1853)
• Thamnophis melanogaster (PETERS, 1864)
• Thamnophis mendax WALKER, 1955
• Thamnophis nigronuchalis THOMPSON, 1957
• Thamnophis ordinoides (BAIRD & GIRARD, 1852)
• Thamnophis postremus SMITH, 1942
• Thamnophis proximus (SAY, 1823)
• Thamnophis pulchrilatus (COPE, 1885)
• Thamnophis radix (BAIRD & GIRARD, 1853)
• Thamnophis rossmani CONANT, 2000
• Thamnophis rufipunctatus (COPE, 1875)
• Thamnophis saurita (LINNAEUS, 1766)
• Thamnophis scalaris COPE, 1861
• Thamnophis scaliger (JAN, 1863)
• Thamnophis sirtalis (LINNAEUS, 1758)
• Thamnophis sumichrasti (COPE, 1866)
• Thamnophis validus (KENNICOTT, 1860)
• Thamnosophis infrasignatus (GÜNTHER, 1882)
• Thamnosophis lateralis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Thamnosophis stumpffi (BOETTGER, 1881)
• Thecadactylus rapicauda (HOUTTUYN, 1782)
• Thecadactylus solimoensis BERGMANN & RUSSELL, 2007
• Thelotornis capensis SMITH, 1849
• Thelotornis kirtlandii (HALLOWELL, 1844)
• Thelotornis mossambicanus (BOCAGE, 1895)
• Thelotornis usambaricus BROADLEY, 2001
• Thermophis baileyi (WALL, 1907)
• Thrasops flavigularis (HALLOWELL, 1852)
• Thrasops jacksonii GÜNTHER, 1895
• Thrasops occidentalis PARKER, 1940
• Thrasops schmidti LOVERIDGE, 1936
• Tomistoma schlegelii (MÜLLER, 1838)
• Tomodon dorsatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Toxicocalamus grandis (BOULENGER, 1914)
• Toxicocalamus lamingtoni (KINGHORN, 1928)
• Toxicocalamus loennbergii (BOULENGER, 1908)
• Toxicocalamus longissimus BOULENGER, 1896
• Toxicocalamus loriae (BOULENGER, 1898)
• Toxicocalamus mintoni KRAUS, 2009
• Toxicocalamus nymani (LÖNNBERG, 1900)
• Toxicodryas adamantea GREENBAUM, ALLEN, VAUGHAN, PAUWELS, WALLACH, KUSAMBA, MUNINGA, ARISTOTE, MALI, BADJEDJEA, PENNER, RÖDEL, RIVERA, STERKHOVA, JOHNSON, TAPONDJOU & BROWN, 2021
• Toxicodryas blandingii (HALLOWELL, 1844)
• Toxicodryas pulverulenta (FISCHER, 1856)
• Toxicodryas vexator GREENBAUM, ALLEN, VAUGHAN, PAUWELS, WALLACH, KUSAMBA, MUNINGA, ARISTOTE, MALI, BADJEDJEA, PENNER, RÖDEL, RIVERA, STERKHOVA, JOHNSON, TAPONDJOU & BROWN, 2021
• Trachemys scripta (THUNBERG, 1792)
• Trachischium fuscum (BLYTH, 1855)
• Trachischium guentheri BOULENGER, 1890
• Trachischium monticola (CANTOR, 1839)
• Trachischium tenuiceps (BLYTH, 1855)
• Trachylepis acutilabris (PETERS, 1862)
• Trachylepis affinis (GRAY, 1839)
• Trachylepis boulengeri (STERNFELD, 1911)
• Trachylepis capensis (GRAY, 1831)
• Trachylepis damarana (PETERS, 1870)
• Trachylepis depressa (PETERS, 1854)
• Trachylepis homalocephala (WIEGMANN, 1828)
• Trachylepis lacertiformis (PETERS, 1854)
• Trachylepis maculilabris (GRAY, 1845)
• Trachylepis margaritifer (PETERS, 1854)
• Trachylepis megalura (PETERS, 1878)
• Trachylepis mlanjensis (LOVERIDGE, 1953)
• Trachylepis notabilis (PETERS, 1879)
• Trachylepis occidentalis (PETERS, 1867)
• Trachylepis planifrons (PETERS, 1878)
• Trachylepis punctulata (BOCAGE, 1872)
• Trachylepis spilogaster (PETERS, 1882)
• Trachylepis striata (PETERS, 1844)
• Trachylepis sulcata (PETERS, 1867)
• Trachylepis varia (PETERS, 1867)
• Trachylepis variegata (PETERS, 1870)
• Trachylepis wahlbergii (PETERS, 1870)
• Trapelus agilis (OLIVIER, 1807)
• Trapelus agnetae (WERNER, 1929)
• Trapelus mutabilis (MERREM, 1820)
• Trapelus persicus (BLANFORD, 1881)
• Trapelus ruderatus (OLIVIER, 1804)
• Tretanorhinus nigroluteus COPE, 1861
• Tretanorhinus variabilis DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Tricheilostoma bicolor (JAN, 1860)
• Tricheilostoma dissimilis (BOCAGE, 1886)
• Tricheilostoma sundewalli (JAN, 1862)
• Trilepida acutirostris PINTO & CURCIO, 2011
• Trilepida affinis (BOULENGER, 1884)
• Trilepida anthracina (BAILEY, 1946)
• Trilepida brasiliensis (LAURENT, 1949)
• Trilepida dimidiata (JAN, 1861)
• Trilepida koppesi (AMARAL, 1955)
• Trilepida macrolepis (PETERS, 1858)
• Trilepida salgueiroi (AMARAL, 1955)
• Trimeresurus albolabris GRAY, 1842
• Trimeresurus andersonii THEOBALD, 1868
• Trimeresurus arunachalensis CAPTAIN, DEEPAK, PANDIT, BHATT & ATHREYA, 2019
• Trimeresurus cantori (BLYTH, 1846)
• Trimeresurus erythrurus (CANTOR, 1839)
• Trimeresurus fasciatus (BOULENGER, 1896)
• Trimeresurus flavomaculatus (GRAY, 1842)
• Trimeresurus gumprechti DAVID, VOGEL, PAUWELS & VIDAL, 2002
• Trimeresurus hageni (LIDTH DE JEUDE, 1886)
• Trimeresurus insularis KRAMER, 1977
• Trimeresurus kanburiensis SMITH, 1943
• Trimeresurus labialis (FITZINGER, 1867)
• Trimeresurus macrops KRAMER, 1977
• Trimeresurus malcolmi LOVERIDGE, 1938
• Trimeresurus mcgregori TAYLOR, 1919
• Trimeresurus medoensis ZHAO, 1977
• Trimeresurus nebularis VOGEL, DAVID & PAUWELS, 2004
• Trimeresurus popeiorum SMITH, 1937
• Trimeresurus purpureomaculatus (GRAY, 1832)
• Trimeresurus sabahi REGENASS & KRAMER, 1981
• Trimeresurus salazar MIRZA, BHOSALE, PHANSALKAR, SAWANT, GOWANDE & PATEL, 2020
• Trimeresurus schultzei GRIFFIN, 1909
• Trimeresurus septentrionalis KRAMER, 1977
• Trimeresurus sichuanensis (GUO & WANG, 2011)
• Trimeresurus stejnegeri SCHMIDT, 1925
• Trimeresurus sumatranus (RAFFLES, 1822)
• Trimeresurus tibetanus HUANG, 1982
• Trimeresurus venustus VOGEL, 1991
• Trimeresurus vogeli DAVID, VIDAL & PAUWELS, 2001
• Trimeresurus yunnanensis SCHMIDT, 1925
• Trimerodytes aequifasciatus (BARBOUR, 1908)
• Trimerodytes annularis (HALLOWELL, 1856)
• Trimerodytes balteatus COPE, 1895
• Trimerodytes percarinatus (BOULENGER, 1899)
• Trimerodytes praemaxillaris (ANGEL, 1929)
• Trimerodytes yunnanensis (RAO & YANG, 1998)
• Trimetopon barbouri DUNN, 1930
• Trimetopon gracile (GÜNTHER, 1872)
• Trimetopon pliolepis COPE, 1894
• Trimetopon simile DUNN, 1930
• Trimetopon slevini DUNN, 1940
• Trimetopon viquezi DUNN, 1937
• Trimorphodon biscutatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Trimorphodon lambda COPE, 1886
• Trimorphodon lyrophanes (COPE, 1860)
• Trimorphodon paucimaculatus TAYLOR, 1936
• Trimorphodon quadruplex SMITH, 1941
• Trimorphodon tau COPE, 1870
• Trimorphodon vilkinsonii COPE, 1886
• Trioceros melleri (GRAY, 1865)
• Tropidechis carinatus (KREFFT, 1863)
• Tropidoclonion lineatum (HALLOWELL, 1856)
• Tropidodipsas fasciata GÜNTHER, 1858
• Tropidodipsas fischeri (BOULENGER, 1894)
• Tropidodipsas philippii (JAN, 1863)
• Tropidodipsas repleta SMITH, LEMOS-ESPINAL, HARTMAN & CHISZAR, 2005
• Tropidodipsas zweifeli (LINER & WILSON, 1970)
• Tropidodryas serra (SCHLEGEL, 1837)
• Tropidodryas striaticeps (COPE, 1870)
• Tropidolaemus huttoni (SMITH, 1949)
• Tropidolaemus laticinctus KUCH, GUMPRECHT & MELAUN, 2007
• Tropidolaemus philippensis (GRAY, 1842)
• Tropidolaemus subannulatus (GRAY, 1842)
• Tropidolaemus wagleri (BOIE, 1827)
• Tropidonophis dahlii (WERNER, 1899)
• Tropidonophis dendrophiops (GÜNTHER, 1883)
• Tropidonophis doriae (BOULENGER, 1898)
• Tropidonophis elongatus (JAN, 1865)
• Tropidonophis hypomelas (GÜNTHER, 1877)
• Tropidonophis mairii (GRAY, 1841)
• Tropidonophis mcdowelli MALNATE & UNDERWOOD, 1988
• Tropidonophis montanus (LIDTH DE JEUDE, 1911)
• Tropidonophis multiscutellatus (BRONGERSMA, 1948)
• Tropidonophis picturatus (SCHLEGEL, 1837)
• Tropidonophis punctiventris (BOETTGER, 1895)
• Tropidonophis spilogaster (BOIE, 1827)
• Tropidonophis truncatus (PETERS, 1863)
• Tropidophis battersbyi LAURENT, 1949
• Tropidophis boulengeri (PERACCA, 1910)
• Tropidophis bucculentus (COPE, 1868)
• Tropidophis canus (COPE, 1868)
• Tropidophis curtus (GARMAN, 1887)
• Tropidophis feicki SCHWARTZ, 1957
• Tropidophis grapiuna CURCIO, SALES-NUNES, SUZART ARGOLO, SKUK & RODRIGUES, 2012
• Tropidophis greenwayi BARBOUR & SHREVE, 1936
• Tropidophis gularis PETERS, 1860
• Tropidophis haetianus (COPE, 1879)
• Tropidophis maculatus (BIBRON, 1840)
• Tropidophis melanurus (SCHLEGEL, 1837)
• Tropidophis pardalis (GUNDLACH, 1840)
• Tropidophis paucisquamis (MÜLLER, 1901)
• Tropidophis semicinctus (GUNDLACH & PETERS, 1864)
• Tropidophis spiritus HEDGES & GARRIDO, 1999
• Tropidophis stejnegeri GRANT, 1940
• Tropidophis stullae GRANT, 1940
• Tropidophis taczanowskyi (STEINDACHNER, 1880)
• Tropidophorus berdmorei (BLYTH, 1853)
• Tropidophorus microlepis GÜNTHER, 1861
• Tropidosaura montana (GRAY, 1831)
• Tropidurus hispidus (SPIX, 1825)
• Tropidurus lagunablanca CARVALHO, 2016
• Tupinambis teguixin (LINNAEUS, 1758)
• Tympanocryptis cephalus GÜNTHER, 1867
• Tympanocryptis condaminensis MELVILLE, SMITH, HOBSON, HUNJAN & SHOO, 2014
• Tympanocryptis gigas MITCHELL, 1948
• Tympanocryptis houstoni STORR, 1982
• Tympanocryptis lineata PETERS, 1863
• Tympanocryptis tetraporophora LUCAS & FROST, 1895
• Tympanocryptis uniformis MITCHELL, 1948
• Typhlacontias gracilis ROUX, 1907
• Typhlacontias rohani ANGEL, 1923
• Typhlophis squamosus (SCHLEGEL, 1839)
• Typhlops cubae (BIBRON, 1843)
• Typhlops jamaicensis (SHAW, 1802)
• Typhlops leptolepis DOMÍNGUEZ, FONG & ITURRIAGA, 2013
• Typhlops lumbricalis (LINNAEUS, 1758)
• Typhlops oxyrhinus DOMÍNGUEZ & DÍAZ, 2011
• Typhlops pachyrhinus DOMÍNGUEZ & DÍAZ, 2011
• Typhlops pusillus BARBOUR, 1914
• Typhlops sulcatus COPE, 1868
• Typhlosaurus caecus (CUVIER, 1816)
• Uma cowlesi HEIFETZ, 1941
• Uma exsul SCHMIDT & BOGERT, 1947
• Uma inornata COPE, 1895
• Uma notata BAIRD, 1858
• Uma scoparia COPE, 1894
• Underwoodisaurus milii (BORY DE SAINT-VINCENT, 1823)
• Underwoodisaurus seorsus DOUGHTY & OLIVER, 2011
• Ungaliophis continentalis MÜLLER, 1880
• Ungaliophis panamensis SCHMIDT, 1933
• Uracentron azureum (LINNAEUS, 1758)
• Uracentron flaviceps (GUICHENOT, 1855)
• Uromacer catesbyi (SCHLEGEL, 1837)
• Uromacer frenatus (GÜNTHER, 1865)
• Uromacer oxyrhynchus DUMÉRIL, BIBRON & DUMÉRIL, 1854
• Uromastyx aegyptia (FORSKÅL, 1775)
• Uropeltis arcticeps (GÜNTHER, 1875)
• Uropeltis beddomii (GÜNTHER, 1862)
• Uropeltis bicatenata GÜNTHER, 1864
• Uropeltis ceylanica CUVIER, 1829
• Uropeltis ellioti (GRAY, 1858)
• Uropeltis grandis (BEDDOME, 1867)
• Uropeltis macrolepis (PETERS, 1862)
• Uropeltis maculata (BEDDOME, 1878)
• Uropeltis ocellata (BEDDOME, 1863)
• Uropeltis pulneyensis (BEDDOME, 1863)
• Uropeltis rubrolineata (GÜNTHER, 1875)
• Uropeltis shorttii (BEDDOME, 1863)
• Uropeltis woodmasoni (THEOBALD, 1876)
• Urosaurus auriculatus (COPE, 1871)
• Urosaurus clarionensis (TOWNSEND, 1890)
• Urosaurus gadovi (SCHMIDT, 1921)
• Urosaurus graciosus HALLOWELL, 1854
• Urosaurus microscutatus (VAN DENBURGH, 1894)
• Urosaurus nigricauda (COPE, 1864)
• Urosaurus ornatus (BAIRD & GIRARD, 1852)
• Urotheca decipiens (GÜNTHER, 1893)
• Urotheca dumerilli (BIBRON, 1840)
• Urotheca fulviceps (COPE, 1886)
• Urotheca guentheri (DUNN, 1938)
• Urotheca lateristriga (BERTHOLD, 1859)
• Urotheca myersi SAVAGE & LAHANAS, 1989
• Urotheca pachyura (COPE, 1875)
• Uta nolascensis VAN DENBURGH & SLEVIN, 1921
• Uta palmeri STEJNEGER, 1890
• Uta stansburiana BAIRD & GIRARD, 1852
• Uvidicolus sphyrurus (OGILBY, 1892)
• Vanzosaura rubricauda (BOULENGER, 1902)
• Varanus albigularis (DAUDIN, 1802)
• Varanus bengalensis (DAUDIN, 1802)
• Varanus caspius (EICHWALD, 1831)
• Varanus dumerilii SCHLEGEL, 1839
• Varanus griseus (DAUDIN, 1803)
• Varanus nebulosus (GRAY, 1831)
• Varanus niloticus (LINNAEUS, 1766)
• Varanus salvator (LAURENTI, 1768)
• Varanus storri MERTENS, 1966
• Varanus varius (SHAW, 1790)
• Vipera altaica TUNIYEV, NILSON & ANDRÉN, 2010
• Vipera ammodytes (LINNAEUS, 1758)
• Vipera anatolica EISELT & BARAN, 1970
• Vipera aspis (LINNAEUS, 1758)
• Vipera berus (LINNAEUS, 1758)
• Vipera darevskii VEDMEDERJA, ORLOV & TUNIYEV, 1986
• Vipera dinniki NIKOLSKY, 1913
• Vipera eriwanensis (REUSS, 1933)
• Vipera kaznakovi NIKOLSKY, 1909
• Vipera latastei BOSCA, 1878
• Vipera monticola SAINT GIRONS, 1953
• Vipera nikolskii VEDMEDERYA, GRUBANT & RUDAJEWA, 1986
• Vipera orlovi TUNIYEV & OSTROVSKIKH, 2001
• Vipera renardi (CHRISTOPH, 1861)
• Vipera seoanei LATASTE, 1879
• Vipera ursinii (BONAPARTE, 1835)
• Vipera walser GHIELMI, MENEGON, MARSDEN, LADDAGA & URSENBACHER, 2016
• Virginia valeriae BAIRD & GIRARD, 1853
• Wallaceophis gujaratensis MIRZA, VYAS, PATEL, MAHETA & SANAP, 2016
• Wallophis brachyura (GÜNTHER, 1866)
• Walterinnesia aegyptia LATASTE, 1887
• Wetmorena haetiana COCHRAN, 1927
• Wetmorena mylica SCHWARTZ, 1965
• Wetmorena surda SCHWARTZ, 1965
• Xantusia arizonae KLAUBER, 1931
• Xantusia henshawi STEJNEGER, 1893
• Xantusia riversiana COPE, 1883
• Xantusia vigilis BAIRD, 1859
• Xantusia wigginsi SAVAGE, 1952
• Xenelaphis ellipsifer BOULENGER, 1900
• Xenelaphis hexagonotus (CANTOR, 1847)
• Xenocalamus bicolor GÜNTHER, 1868
• Xenocalamus mechowii PETERS, 1881
• Xenocalamus transvaalensis METHUEN, 1919
• Xenochrophis cerasogaster (CANTOR, 1839)
• Xenochrophis maculatus (EDELING, 1864)
• Xenochrophis trianguligerus (BOIE, 1827)
• Xenochrophis vittatus (LINNAEUS, 1758)
• Xenodermus javanicus REINHARDT, 1836
• Xenodon dorbignyi (BIBRON, 1854)
• Xenodon guentheri BOULENGER, 1894
• Xenodon histricus (JAN, 1863)
• Xenodon merremii (WAGLER, 1824)
• Xenodon nattereri (STEINDACHNER, 1867)
• Xenodon neuwiedii GÜNTHER, 1863
• Xenodon pulcher (JAN, 1863)
• Xenodon rabdocephalus (WIED-NEUWIED, 1824)
• Xenodon semicinctus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Xenodon severus (LINNAEUS, 1758)
• Xenopeltis hainanensis HU & ZHAO, 1972
• Xenopeltis unicolor REINWARDT, 1827
• Xenophidion schaeferi GÜNTHER & MANTHEY, 1995
• Xenopholis scalaris (WUCHERER, 1861)
• Xenopholis undulatus (JENSEN, 1900)
• Xenotyphlops grandidieri (MOCQUARD, 1905)
• Xenoxybelis argenteus (DAUDIN, 1803)
• Xenoxybelis boulengeri (PROCTER, 1923)
• Xerotyphlops etheridgei (WALLACH, 2002)
• Xerotyphlops socotranus (BOULENGER, 1889)
• Xerotyphlops syriacus (JAN, 1864)
• Xerotyphlops vermicularis (MERREM, 1820)
• Xerotyphlops wilsoni (WALL, 1908)
• Xyelodontophis uluguruensis BROADLEY & WALLACH, 2002
• Xylophis perroteti (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
• Zamenis hohenackeri (STRAUCH, 1873)
• Zamenis lineatus (CAMERANO, 1891)
• Zamenis longissimus (LAURENTI, 1768)
• Zamenis persicus (WERNER, 1913)
• Zamenis scalaris (SCHINZ, 1822)
• Zamenis situla (LINNAEUS, 1758)
• Zonateres lanei BAILEY, THOMAS & DA SILVA, 2005
• Zootoca vivipara (LICHTENSTEIN, 1823)
• Zygaspis dolichomenta (WITTE & LAURENT, 1942)
• Zygaspis nigra BROADLEY & GANS, 1969
• Zygaspis quadrifrons (PETERS, 1862)

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