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Species found: 3391
- Ablepharus alaicus ELPATJEVSKY, 1901
- Ablepharus himalayanus (GÜNTHER, 1864)
- Ablepharus pannonicus (LICHTENSTEIN, 1823)
- Ablepharus sikimmensis (BLYTH, 1854)
- Abronia deppii (WIEGMANN, 1828)
- Abronia fimbriata (COPE, 1885)
- Abronia montecristoi HIDALGO, 1983
- Abronia moreletii (BOCOURT, 1872)
- Abronia salvadorensis HIDALGO, 1983
- Abronia taeniata (WIEGMANN, 1828)
- Abronia vasconcelosii (BOCOURT, 1872)
- Acanthocercus atricollis (SMITH, 1849)
- Acanthocercus branchi WAGNER, GREENBAUM & BAUER, 2012
- Acanthocercus ceriacoi MARQUES, PARRINHA, SANTOS, BANDEIRA, BUTLER, SOUSA, BAUER & WAGNER, 2022
- Acanthocercus cyanocephalus (FALK, 1925)
- Acanthocercus cyanogaster (RÜPPELL, 1835)
- Acanthocercus gregorii (GÜNTHER, 1894)
- Acanthocercus kiwuensis (KLAUSEWITZ, 1957)
- Acanthocercus margaritae WAGNER, BUTLER, CERÍACO & BAUER, 2021
- Acanthocercus minutus (KLAUSEWITZ, 1957)
- Acanthocercus phillipsii (BOULENGER, 1895)
- Acanthochelys macrocephala (RHODIN, MITTERMEIER & MCMORRIS, 1984)
- Acanthochelys pallidipectoris (FREIBERG, 1945)
- Acanthochelys radiolata (MIKAN, 1820)
- Acanthochelys spixii (DUMÉRIL & BIBRON, 1835)
- Acanthophis antarcticus (SHAW, 1802)
- Acanthophis hawkei WELLS & WELLINGTON, 1985
- Acanthophis praelongus RAMSAY, 1877
- Acanthophis pyrrhus BOULENGER, 1898
- Acanthophis rugosus LOVERIDGE, 1948
- Acanthophis wellsi HOSER, 1998
- Acanthosaura armata (GRAY, 1827)
- Acontias meleagris (LINNAEUS, 1758)
- Acontias schmitzi WAGNER, BROADLEY & BAUER, 2012
- Acritoscincus duperreyi (GRAY, 1838)
- Acrochordus granulatus (SCHNEIDER, 1799)
- Acrochordus javanicus HORNSTEDT, 1787
- Actinemys marmorata (BAIRD & GIRARD, 1852)
- Actinemys pallida (SEELIGER, 1945)
- Adelphicos quadrivirgatum JAN, 1862
- Adolfus africanus (BOULENGER, 1906)
- Adolfus alleni (BARBOUR, 1914)
- Aeluroscalabotes felinus (GÜNTHER, 1864)
- Afroedura loveridgei BROADLEY, 1963
- Afroedura nivaria (BOULENGER, 1894)
- Afroedura pondolia (HEWITT, 1925)
- Afroedura transvaalica (HEWITT, 1925)
- Afrogecko porphyreus (DAUDIN, 1802)
- Agama aculeata MERREM, 1820
- Agama africana (HALLOWELL, 1844)
- Agama agama (LINNAEUS, 1758)
- Agama anchietae BOCAGE, 1896
- Agama boensis MONARD, 1940
- Agama bottegi BOULENGER, 1897
- Agama boueti CHABANAUD, 1917
- Agama boulengeri LATASTE, 1886
- Agama caudospinosa MEEK, 1910
- Agama cristata MOCQUARD, 1905
- Agama doriae BOULENGER, 1885
- Agama etoshae MCLACHLAN, 1981
- Agama hartmanni PETERS, 1869
- Agama hispida (KAUP, 1827)
- Agama insularis CHABANAUD, 1918
- Agama lebretoni WAGNER, BAREJ & SCHMITZ, 2009
- Agama mucosoensis HELLMICH, 1957
- Agama parafricana TRAPE, MEDIANNIKOV & TRAPE, 2012
- Agama paragama GRANDISON, 1968
- Agama robecchii BOULENGER, 1891
- Agama rueppelli VAILLANT, 1882
- Agama sankaranica CHABANAUD, 1918
- Agamodon anguliceps PETERS, 1882
- Agamura cruralis BLANFORD, 1874
- Agamura persica (DUMÉRIL, 1856)
- Agkistrodon bilineatus GÜNTHER, 1863
- Agkistrodon howardgloydi CONANT, 1984
- Agkistrodon piscivorus (LACÉPÈDE, 1789)
- Ahaetulla flavescens (WALL, 1910)
- Ahaetulla nasuta (LACÉPÈDE, 1789)
- Ahaetulla perroteti (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Ahaetulla prasina (BOIE, 1827)
- Ailuronyx seychellensis (DUMÉRIL & BIBRON, 1836)
- Aipysurus apraefrontalis SMITH, 1926
- Aldabrachelys gigantea (SCHWEIGGER, 1812)
- Algyroides fitzingeri (WIEGMANN, 1834)
- Algyroides moreoticus BIBRON & BORY, 1833
- Alinea lanceolata (COPE, 1863)
- Alopoglossus copii BOULENGER, 1885
- Alopoglossus festae (PERACCA, 1896)
- Alsophylax laevis NIKOLSKY, 1907
- Alsophylax loricatus STRAUCH, 1887
- Alsophylax pipiens (PALLAS, 1827)
- Alsophylax przewalskii STRAUCH, 1887
- Alsophylax tadjikiensis GOLUBEV, 1979
- Altiphylax stoliczkai (STEINDACHNER, 1867)
- Altiphylax tokobajevi (EREMCHENKO & SZCZERBAK, 1984)
- Amalosia jacovae (COUPER, KEIM & HOSKIN, 2007)
- Amalosia lesueurii (DUMÉRIL & BIBRON, 1836)
- Amalosia robusta (BOULENGER, 1885)
- Amastridium sapperi (WERNER, 1903)
- Amblyrhynchus cristatus BELL, 1825
- Ameiva ameiva (LINNAEUS, 1758)
- Ameiva bifrontata COPE, 1862
- Ameiva concolor RUTHVEN, 1924
- Ameiva fuliginosa (COPE, 1892)
- Ameiva praesignis (BAIRD & GIRARD, 1852)
- Ameiva provitaae GARCIA-PEREZ, 1995
- Ameivula jalapensis (COLLI, GIUGLIANO, MESQUITA & FRANCA, 2009)
- Ameivula mumbuca (COLLI, CALDWELL, COSTA, GAINSBURY, GARDA, MESQUITA, FILHO, SOARES, SILVA, VALDUJO, VIEIRA, VITT, WERNECK, WIEDERHECKER & ZATZ, 2003)
- Ameivula nativo (ROCHA, BERGALLO & PECCININI-SEALE, 1997)
- Ameivula ocellifera (SPIX, 1825)
- Amerotyphlops costaricensis (JIMÉNEZ & SAVAGE, 1963)
- Amerotyphlops stadelmani (SCHMIDT, 1936)
- Amerotyphlops tycherus (TOWNSEND, WILSON, KETZLER & LUQUE-MONTES, 2008)
- Amphibolurus centralis (LOVERIDGE, 1933)
- Amphibolurus muricatus (WHITE, 1790)
- Amphibolurus norrisi WITTEN & COVENTRY, 1984
- Amphiglossus astrolabi DUMÉRIL & BIBRON, 1839
- Amphiglossus reticulatus (KAUDERN, 1922)
- Amphisbaena anomala (BARBOUR, 1914)
- Amphisbaena borelli PERACCA, 1897
- Amphisbaena brasiliana (GRAY, 1865)
- Amphisbaena fuliginosa LINNAEUS, 1758
- Amphisbaena gonavensis GANS & ALEXANDER, 1962
- Amphisbaena innocens WEINLAND, 1863
- Amphisbaena kingii (BELL, 1833)
- Amphisbaena munoai KLAPPENBACH, 1960
- Amphisbaena plumbea GRAY, 1872
- Amphisbaena prunicolor (COPE, 1885)
- Amphisbaena roberti GANS, 1964
- Amphisbaena steindachneri STRAUCH, 1881
- Amyda cartilaginea (BODDAERT, 1770)
- Amyda ornata (GRAY, 1861)
- Anadia bitaeniata BOULENGER, 1903
- Anadia brevifrontalis (BOULENGER, 1903)
- Anadia ocellata GRAY, 1845
- Anadia pariaensis RIVAS, LA MARCA & OLIVEROS, 1999
- Anadia steyeri NIEDEN, 1914
- Anatololacerta anatolica (WERNER, 1900)
- Anatololacerta danfordi (GÜNTHER, 1876)
- Anatololacerta finikensis (EISELT & SCHMIDTLER, 1987)
- Anatololacerta ibrahimi (EISELT & SCHMIDTLER, 1987)
- Anatololacerta pelasgiana (MERTENS, 1959)
- Ancylodactylus barbouri (PERRET, 1986)
- Andinosaura hyposticta (BOULENGER, 1902)
- Andinosaura laevis (BOULENGER, 1908)
- Andinosaura oculata (O'SHAUGHNESSY, 1879)
- Andinosaura petrorum (KIZIRIAN, 1996)
- Andinosaura vespertina (KIZIRIAN, 1996)
- Andinosaura vieta (KIZIRIAN, 1996)
- Anelytropsis papillosus COPE, 1885
- Anepischetosia maccoyi (LUCAS & FROST, 1894)
- Anguis cephallonica WERNER, 1894
- Anguis colchica (NORDMANN, 1840)
- Anguis fragilis LINNAEUS, 1758
- Anguis graeca BEDRIAGA, 1881
- Anguis veronensis POLLINI, 1818
- Anniella geronimensis SHAW, 1940
- Anniella pulchra GRAY, 1852
- Anolis aliniger MERTENS, 1939
- Anolis allisoni BARBOUR, 1928
- Anolis allogus BARBOUR & RAMSDEN, 1919
- Anolis amplisquamosus (MCCRANIE, WILSON & WILLIAMS, 1993)
- Anolis angusticeps HALLOWELL, 1856
- Anolis aquaticus TAYLOR, 1956
- Anolis argillaceus COPE, 1863
- Anolis auratus DAUDIN, 1802
- Anolis bahorucoensis NOBLE & HASSLER, 1933
- Anolis baleatus (COPE, 1864)
- Anolis barbatus (GARRIDO, 1982)
- Anolis barbouri (SCHMIDT, 1919)
- Anolis beckeri BOULENGER, 1881
- Anolis bicaorum (KÖHLER, 1996)
- Anolis bimaculatus (SPARRMAN, 1784)
- Anolis biporcatus (WIEGMANN, 1834)
- Anolis bombiceps COPE, 1875
- Anolis boulengerianus THOMINOT, 1887
- Anolis brasiliensis VANZOLINI & WILLIAMS, 1970
- Anolis brunneus COPE, 1894
- Anolis capito PETERS, 1863
- Anolis carolinensis VOIGT, 1832
- Anolis carpenteri ECHELLE, ECHELLE & FITCH, 1971
- Anolis chamaeleonides DUMÉRIL & BIBRON, 1837
- Anolis chlorocyanus DUMÉRIL & BIBRON, 1837
- Anolis chrysolepis DUMÉRIL & BIBRON, 1837
- Anolis crassulus COPE, 1864
- Anolis cupreus HALLOWELL, 1860
- Anolis cusuco (MCCRANIE, KÖHLER & WILSON, 2000)
- Anolis cybotes COPE, 1863
- Anolis datzorum KÖHLER, PONCE, SUNYER & BATISTA, 2007
- Anolis desiradei LAZELL, 1964
- Anolis distichus COPE, 1861
- Anolis doris BARBOUR, 1925
- Anolis dunni SMITH, 1936
- Anolis evermanni STEJNEGER, 1904
- Anolis extremus GARMAN, 1887
- Anolis frenatus COPE, 1899
- Anolis gadovii BOULENGER, 1905
- Anolis gingivinus COPE, 1864
- Anolis hobartsmithi NIETO-MONTES DE OCA, 2001
- Anolis homolechis (COPE, 1864)
- Anolis imias RUIBAL & WILLIAMS, 1961
- Anolis insignis COPE, 1871
- Anolis johnmeyeri WILSON & MCCRANIE, 1982
- Anolis kreutzi (MCCRANIE, KÖHLER & WILSON, 2000)
- Anolis laeviventris (WIEGMANN, 1834)
- Anolis latifrons BERTHOLD, 1846
- Anolis leachii DUMÉRIL & BIBRON, 1837
- Anolis lemurinus COPE, 1861
- Anolis limifrons COPE, 1863
- Anolis lineatus DAUDIN, 1802
- Anolis liogaster BOULENGER, 1905
- Anolis longiceps SCHMIDT, 1919
- Anolis loveridgei SCHMIDT, 1936
- Anolis luteosignifer GARMAN, 1888
- Anolis macrinii SMITH, 1968
- Anolis meridionalis BOETTGER, 1885
- Anolis morazani TOWNSEND & WILSON, 2009
- Anolis muralla (KÖHLER, MCCRANIE & WILSON, 1999)
- Anolis nebuloides BOCOURT, 1873
- Anolis nebulosus (WIEGMANN, 1834)
- Anolis nelsoni BARBOUR, 1914
- Anolis noblei BARBOUR & SHREVE, 1935
- Anolis ocelloscapularis (KÖHLER, MCCRANIE & WILSON, 2001)
- Anolis omiltemanus DAVIS, 1954
- Anolis onca (O'SHAUGHNESSY, 1875)
- Anolis oxylophus COPE, 1875
- Anolis petersii BOCOURT, 1873
- Anolis pijolensis (MCCRANIE, WILSON & WILLIAMS, 1993)
- Anolis planiceps TROSCHEL, 1848
- Anolis poecilopus COPE, 1863
- Anolis porcatus GRAY, 1840
- Anolis purpurgularis (MCCRANIE, CRUZ & HOLM, 1993)
- Anolis quadriocellifer BARBOUR & RAMSDEN, 1919
- Anolis quaggulus COPE, 1885
- Anolis quercorum FITCH, 1978
- Anolis ravifaux SCHWARTZ & HENDERSON, 1982
- Anolis reconditus UNDERWOOD & WILLIAMS, 1959
- Anolis rejectus GARRIDO & SCHWARTZ, 1972
- Anolis richardii DUMÉRIL & BIBRON, 1837
- Anolis roatanensis (KÖHLER & MCCRANIE, 2001)
- Anolis rodriguezii BOCOURT, 1873
- Anolis rubribarbaris (KÖHLER, MCCRANIE & WILSON, 1999)
- Anolis rubribarbus BARBOUR & RAMSDEN, 1919
- Anolis sabanus GARMAN, 1887
- Anolis sagrei DUMÉRIL & BIBRON, 1837
- Anolis salvini BOULENGER, 1885
- Anolis scypheus COPE, 1864
- Anolis semilineatus COPE, 1864
- Anolis singularis WILLIAMS, 1965
- Anolis smaragdinus BARBOUR & SHREVE, 1935
- Anolis sminthus DUNN & EMLEN, 1932
- Anolis stratulus COPE, 1861
- Anolis subocularis DAVIS, 1954
- Anolis tandai AVILA-PIRES, 1995
- Anolis taylori SMITH & SPIELER, 1945
- Anolis tropidolepis BOULENGER, 1885
- Anolis tropidonotus PETERS, 1863
- Anolis uniformis COPE, 1885
- Anolis unilobatus KÖHLER & VESELY, 2010
- Anolis utilensis (KÖHLER, 1996)
- Anolis valencienni DUMÉRIL & BIBRON, 1837
- Anolis vermiculatus COCTEAU, 1837
- Anolis vittigerus COPE, 1863
- Anolis wampuensis (MCCRANIE & KÖHLER, 2001)
- Anolis wellbornae AHL, 1940
- Anolis wermuthi (KÖHLER & OBERMEIER, 1998)
- Anolis yoroensis (MCCRANIE, NICHOLSON & KÖHLER, 2001)
- Anolis zeus (KÖHLER & MCCRANIE, 2001)
- Anomalepis mexicana JAN, 1860
- Anomalopus verreauxii DUMÉRIL, 1851
- Anomochilus weberi (LIDTH DE JEUDE, 1890)
- Antaresia childreni (GRAY, 1842)
- Antaresia maculosa (PETERS, 1873)
- Antaresia perthensis (STULL, 1932)
- Apalone ferox (SCHNEIDER, 1783)
- Apalone mutica (LESUEUR, 1827)
- Apalone spinifera (LESUEUR, 1827)
- Apathya cappadocica (WERNER, 1902)
- Aphaniotis fusca (PETERS, 1864)
- Apodora papuana (PETERS & DORIA, 1878)
- Apostolepis assimilis (REINHARDT, 1861)
- Apostolepis dimidiata (JAN, 1862)
- Apostolepis intermedia KOSLOWSKY, 1898
- Apostolepis nelsonjorgei DE LEMA & RENNER, 2004
- Apostolepis rondoni AMARAL, 1925
- Aprasia inaurita KLUGE, 1974
- Aprasia parapulchella KLUGE, 1974
- Aprasia pulchella GRAY, 1839
- Aprasia repens (FRY, 1914)
- Aprasia rostrata PARKER, 1956
- Aprasia striolata LÜTKEN, 1863
- Archaeolacerta bedriagae (CAMERANO, 1885)
- Archaius tigris (KUHL, 1820)
- Argyrophis diardii (SCHLEGEL, 1839)
- Argyrophis oatesii (BOULENGER, 1890)
- Aristelliger georgeensis (BOCOURT, 1873)
- Aristelliger lar COPE, 1862
- Aristelliger nelsoni BARBOUR, 1914
- Aristelliger praesignis (HALLOWELL, 1856)
- Arizona occidentalis BLANCHARD, 1924
- Arthrosaura reticulata (O'SHAUGHNESSY, 1881)
- Asaccus andersoni TORKI, FATHINIA, ROSTAMI, GHARZI & NAZARI-SERENJEH, 2011
- Asaccus elisae (WERNER, 1896)
- Asaccus gardneri CARRANZA, SIMÓ-RIUDALBAS, JAYASINGHE, WILMS & ELS, 2016
- Asaccus griseonotus DIXON & ANDERSON, 1973
- Asaccus ingae EISELT, 1973
- Asaccus iranicus TORKI, AHMADZADEH, ILGAZ, AVCI & KUMLUTAS, 2011
- Asaccus kurdistanensis RASTEGAR-POUYANI, NILSON & FAIZI, 2006
- Asaccus montanus GARDNER, 1994
- Asaccus platyrhynchus ARNOLD & GARDNER, 1994
- Aspidelaps lubricus (LAURENTI, 1768)
- Aspidelaps scutatus (SMITH, 1849)
- Aspidites melanocephalus (KREFFT, 1864)
- Aspidites ramsayi (MACLEAY, 1882)
- Aspidoscelis burti (TAYLOR, 1938)
- Aspidoscelis carmenensis (MASLIN & SECOY, 1986)
- Aspidoscelis ceralbensis (VAN DENBURGH & SLEVIN, 1921)
- Aspidoscelis communis (COPE, 1878)
- Aspidoscelis danheimae (BURT, 1929)
- Aspidoscelis deppii (WIEGMANN, 1834)
- Aspidoscelis espiritensis (VAN DENBURGH & SLEVIN, 1921)
- Aspidoscelis franciscensis (VAN DENBURGH & SLEVIN, 1921)
- Aspidoscelis hyperythrus (COPE, 1863)
- Aspidoscelis laredoensis (MCKINNEY, KAY & ANDERSON, 1973)
- Aspidoscelis lineattissimus (COPE, 1878)
- Aspidoscelis mexicanus (PETERS, 1869)
- Aspidoscelis motaguae (SACKETT, 1941)
- Aspidoscelis pictus (VAN DENBURGH & SLEVIN, 1921)
- Aspidoscelis sexlineatus (LINNAEUS, 1766)
- Aspidura brachyorrhos (BOIE, 1827)
- Aspidura copei GÜNTHER, 1864
- Aspronema dorsivittatum (COPE, 1862)
- Asthenodipsas tropidonota (LIDTH DE JEUDE, 1923)
- Asthenodipsas vertebralis (BOULENGER, 1900)
- Astrochelys radiata (SHAW, 1802)
- Astrochelys yniphora (VAILLANT, 1885)
- Ateuchosaurus okinavensis (THOMPSON, 1912)
- Ateuchosaurus pellopleurus (HALLOWELL, 1861)
- Atlantolacerta andreanskyi (WERNER, 1929)
- Atractaspis corpulenta (HALLOWELL, 1854)
- Atractus acheronius PASSOS, RIVAS-FUENMAYOR & BARRIO-AMORÓS, 2009
- Atractus bocki WERNER, 1909
- Atractus crassicaudatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Atractus emigdioi GONZÁLEZ-SPONGA, 1971
- Atractus erythromelas BOULENGER, 1903
- Atractus flammigerus (BOIE, 1827)
- Atractus indistinctus PRADO, 1940
- Atractus lancinii ROZE, 1961
- Atractus latifrons (GÜNTHER, 1868)
- Atractus mariselae LANCINI, 1969
- Atractus meridensis ESQUEDA & LA MARCA, 2005
- Atractus micheleae ESQUEDA & LA MARCA, 2005
- Atractus multidentatus PASSOS, RIVAS-FUENMAYOR & BARRIO-AMORÓS, 2009
- Atractus pamplonensis AMARAL, 1935
- Atractus taphorni SCHARGEL & GARCÍA-PÉREZ, 2002
- Atractus turikensis BARROS, 2000
- Atractus ventrimaculatus BOULENGER, 1905
- Atractus wagleri PRADO, 1945
- Atractus werneri PERACCA, 1914
- Atretium schistosum (DAUDIN, 1803)
- Atropoides picadoi (DUNN, 1939)
- Aurivela longicauda (BELL, 1843)
- Austrelaps labialis (JAN, 1859)
- Austrelaps ramsayi (KREFFT, 1864)
- Austrelaps superbus (GÜNTHER, 1858)
- Austroablepharus kinghorni (COPLAND, 1947)
- Azemiops feae BOULENGER, 1888
- Bachia bresslaui (AMARAL, 1935)
- Bachia dorbignyi (DUMÉRIL & BIBRON, 1839)
- Bachia heteropa (LICHTENSTEIN & MARTENS, 1856)
- Bachia intermedia NOBLE, 1921
- Bachia lineata BOULENGER, 1903
- Bachia panoplia THOMAS, 1965
- Baikia africana GRAY, 1865
- Barisia imbricata (WIEGMANN, 1828)
- Barisia rudicollis (WIEGMANN, 1828)
- Basiliscus basiliscus (LINNAEUS, 1758)
- Basiliscus plumifrons COPE, 1875
- Basiliscus vittatus WIEGMANN, 1828
- Batagur affinis (CANTOR, 1847)
- Batagur baska (GRAY, 1831)
- Batagur borneoensis (SCHLEGEL & MÜLLER, 1844)
- Batagur dhongoka (GRAY, 1834)
- Batagur kachuga (GRAY, 1831)
- Batagur trivittata (DUMÉRIL & BIBRON, 1835)
- Bauerius ansorgii (BOULENGER, 1907)
- Bavayia crassicollis ROUX, 1913
- Bavayia cyclura (GÜNTHER, 1872)
- Bavayia exsuccida BAUER, WHITAKER & SADLIER, 1998
- Bavayia ornata ROUX, 1913
- Bavayia sauvagii (BOULENGER, 1883)
- Bellatorias frerei (GÜNTHER, 1897)
- Bellatorias major (GRAY, 1845)
- Bellatorias obiri (WELLS & WELLINGTON, 1985)
- Bipes canaliculatus LATREILLE, 1801
- Bitis caudalis (SMITH, 1839)
- Bitis gabonica (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Bitis nasicornis (SHAW & NODDER, 1792)
- Bitis rubida BRANCH, 1997
- Blaesodactylus boivini (DUMÉRIL, 1856)
- Blaesodactylus sakalava (GRANDIDIER, 1867)
- Blanus aporus WERNER, 1898
- Blanus cinereus (VANDELLI, 1797)
- Blanus strauchi (BEDRIAGA, 1884)
- Boa constrictor LINNAEUS, 1758
- Boa imperator DAUDIN, 1803
- Boiga andamanensis (WALL, 1909)
- Boiga cyanea (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga cynodon (BOIE, 1827)
- Boiga dendrophila (BOIE, 1827)
- Boiga forsteni (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga melanota (BOULENGER, 1896)
- Boiga wallachi DAS, 1998
- 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 marchi (BARBOUR & LOVERIDGE, 1929)
- Bothriechis nigroadspersus (STEINDACHNER, 1870)
- Bothriechis nitidus (GÜNTHER, 1859)
- Bothriechis rahimi ARTEAGA, PYRON, BATISTA, VIEIRA, MENESES-PELAYO, SMITH, BARRIO-AMORÓS, KOCH, AGNE, VALENCIA, BUSTAMANTE & HARRIS, 2024
- Bothriechis schlegelii (BERTHOLD, 1846)
- 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
- Bothrophthalmus lineatus (PETERS, 1863)
- Bothrops alternatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Bothrops ammodytoides LEYBOLD, 1873
- Bothrops asper (GARMAN, 1883)
- Bothrops bilineatus (WIED-NEUWIED, 1821)
- 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 lutzi (MIRANDA-RIBEIRO, 1915)
- Bothrops mattogrossensis AMARAL, 1925
- Bothrops medusa (STERNFELD, 1920)
- Bothrops neuwiedi WAGLER, 1824
- Bothrops oligolepis (WERNER, 1901)
- Bothrops pauloensis AMARAL, 1925
- Bothrops pubescens (COPE, 1870)
- Bothrops pulcher (PETERS, 1862)
- Bothrops punctatus (GARCIA, 1896)
- Bothrops taeniatus WAGLER, 1824
- Brachylophus bulabula FISHER, HARLOW, EDWARDS & KEOGH, 2008
- Brachylophus fasciatus (BRONGNIART, 1800)
- Brachylophus vitiensis GIBBONS, 1981
- Brachymeles bonitae DUMÉRIL & BIBRON, 1839
- Brachymeles samarensis BROWN, 1956
- Brachyurophis approximans (GLAUERT, 1954)
- Brachyurophis roperi (KINGHORN, 1931)
- Brachyurophis semifasciatus GÜNTHER, 1863
- Bradypodion pumilum (GMELIN, 1789)
- Broadleysaurus major (DUMÉRIL, 1851)
- Bronchocela burmana BLANFORD, 1878
- Bronchocela celebensis GRAY, 1845
- Bronchocela cristatella (KUHL, 1820)
- Bronchocela danieli (TIWARI & BISWAS, 1973)
- Bronchocela hayeki (MÜLLER, 1928)
- Bronchocela jubata DUMÉRIL & BIBRON, 1837
- Bronchocela marmorata GRAY, 1845
- Bronchocela orlovi HALLERMANN, 2004
- Bronchocela philippina PETERS, 1867
- Bronchocela smaragdina GÜNTHER, 1864
- Bronchocela vietnamensis HALLERMANN & ORLOV, 2005
- Brookesia betschi BRYGOO, BLANC & DOMERGUE, 1974
- Brookesia superciliaris (KUHL, 1820)
- Bufoniceps laungwalaensis (SHARMA, 1978)
- Bungarus caeruleus (SCHNEIDER, 1801)
- Bungarus candidus (LINNAEUS, 1758)
- Bungarus fasciatus (SCHNEIDER, 1801)
- Bunopus tuberculatus BLANFORD, 1874
- Cachryx alfredschmidti (KÖHLER, 1995)
- Cachryx defensor COPE, 1866
- Cadea blanoides (STEJNEGER, 1916)
- Caiman crocodilus (LINNAEUS, 1758)
- Calamaria bicolor DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Caledoniscincus atropunctatus (ROUX, 1913)
- Caledoniscincus austrocaledonicus (BAVAY, 1869)
- Calliophis bivirgatus (BOIE, 1827)
- Calliophis nigrescens (GÜNTHER, 1862)
- Callisaurus draconoides BLAINVILLE, 1835
- Callopistes maculatus GRAVENHORST, 1838
- Calloselasma rhodostoma (KUHL, 1824)
- Calodactylodes aureus (BEDDOME, 1870)
- Calotes calotes (LINNAEUS, 1758)
- Calotes emma GRAY, 1845
- Calotes mystaceus DUMÉRIL & BIBRON, 1837
- Calotes nigrilabris PETERS, 1860
- Calotes paulus SMITH, 1935
- Calotes versicolor (DAUDIN, 1802)
- Calumma andringitraense (BRYGOO, BLANC & DOMERGUE, 1972)
- Calumma cucullatum (GRAY, 1831)
- Calyptotis lepidorostrum GREER, 1983
- Calyptotis ruficauda GREER, 1983
- Calyptotis scutirostrum (PETERS, 1874)
- Calyptotis temporalis GREER, 1983
- Cantoria violacea GIRARD, 1858
- Caraiba andreae (REINHARDT & LÜTKEN, 1862)
- Caretta caretta (LINNAEUS, 1758)
- Carettochelys insculpta RAMSAY, 1886
- Caribicus darlingtoni (COCHRAN, 1939)
- Carinascincus coventryi (RAWLINSON, 1975)
- Carinascincus greeni (RAWLINSON, 1975)
- Carinascincus metallicus (O'SHAUGHNESSY, 1874)
- Carlia fusca (DUMÉRIL & BIBRON, 1839)
- Carlia gracilis STORR, 1974
- Carlia pectoralis (DE VIS, 1885)
- Carlia storri INGRAM & COVACEVICH, 1989
- Carphodactylus laevis GÜNTHER, 1897
- Celatiscincus euryotis (WERNER, 1910)
- Celestus crusculus (GARMAN, 1887)
- Celestus hewardii GRAY, 1845
- Centrochelys sulcata (MILLER, 1779)
- Centrosaura apodema (UZZELL, 1966)
- Cerastes cerastes (LINNAEUS, 1758)
- Cerastes gasperettii LEVITON & ANDERSON, 1967
- Cerastes vipera (LINNAEUS, 1758)
- Ceratophora aspera GÜNTHER, 1864
- Ceratophora stoddartii GRAY, 1834
- Cerberus australis (GRAY, 1842)
- Cerberus rynchops (SCHNEIDER, 1799)
- Cerberus schneiderii (SCHLEGEL, 1837)
- Cercosaura argulus PETERS, 1862
- Cercosaura bassleri RUIBAL, 1952
- Cercosaura ocellata WAGLER, 1830
- Cercosaura olivacea (GRAY, 1845)
- Cercosaura schreibersii WIEGMANN, 1834
- Cerrophidion wilsoni JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
- Chalarodon madagascariensis (PETERS, 1854)
- Chalcides bedriagai (BOSCA, 1880)
- Chalcides boulengeri ANDERSON, 1892
- Chalcides chalcides (LINNAEUS, 1758)
- Chalcides colosii LANZA, 1957
- Chalcides mertensi KLAUSEWITZ, 1954
- Chalcides minutus CAPUTO, 1993
- Chalcides ocellatus (FORSKÅL, 1775)
- Chalcides parallelus DOUMERGUE, 1901
- Chalcides polylepis BOULENGER, 1890
- Chalcides pseudostriatus CAPUTO, 1993
- Chalcides ragazzii BOULENGER, 1890
- Chalcides sepsoides (AUDOUIN, 1829)
- Chalcides striatus (CUVIER, 1829)
- Chamaeleo anchietae BOCAGE, 1872
- Chamaeleo arabicus MATSCHIE, 1893
- Chamaeleo chamaeleon (LINNAEUS, 1758)
- Chamaeleo dilepis LEACH, 1819
- Chamaelycus christyi BOULENGER, 1919
- Chamaesaura aenea (FITZINGER, 1843)
- Chamaesaura anguina LINNAEUS, 1758
- Chamaesaura tenuior GÜNTHER, 1895
- Charina bottae (BLAINVILLE, 1835)
- Chatogekko amazonicus (ANDERSSON, 1918)
- Chelodina burrungandjii THOMSON, KENNETT & GEORGES, 2000
- Chelodina canni MCCORD & THOMSON, 2002
- Chelodina expansa GRAY, 1857
- Chelodina kuchlingi CANN, 1997
- Chelodina longicollis (SHAW, 1794)
- Chelodina mccordi RHODIN, 1994
- Chelodina novaeguineae BOULENGER, 1888
- Chelodina oblonga GRAY, 1841
- Chelodina parkeri RHODIN & MITTERMEIER, 1976
- Chelodina pritchardi RHODIN, 1994
- Chelodina reimanni PHILIPPEN & GROSSMANN, 1990
- Chelodina rugosa OGILBY, 1889
- Chelodina steindachneri SIEBENROCK, 1914
- Chelonia mydas (LINNAEUS, 1758)
- Chelonoidis carbonarius (SPIX, 1824)
- Chelonoidis chilensis (GRAY, 1870)
- Chelonoidis denticulatus (LINNAEUS, 1766)
- Chelonoidis niger (QUOY & GAIMARD, 1824)
- Chelosania brunnea GRAY, 1845
- Chelus fimbriata (SCHNEIDER, 1783)
- Chelus orinocensis VARGAS-RAMÍREZ, CABALLERO, MORALES-BETANCOURT, LASSO, AMAYA, MARTÎNEZ, SILVA-VIANA, VOGT, PIRES-FARIAS, HRBEK, CAMPBELL & FRITZ, 2020
- Chelydra acutirostris PETERS, 1862
- Chelydra rossignonii (BOCOURT, 1868)
- Chelydra serpentina (LINNAEUS, 1758)
- Chersina angulata (SCHWEIGGER, 1812)
- Chersobius boulengeri (DUERDEN, 1906)
- Chersobius signatus (GMELIN, 1789)
- Chersobius solus (BRANCH, 2007)
- Chilorhinophis gerardi (BOULENGER, 1913)
- Chioninia delalandii (DUMÉRIL & BIBRON, 1839)
- Chioninia fogoensis (O'SHAUGHNESSY, 1874)
- Chirindia swynnertoni BOULENGER, 1907
- Chironius grandisquamis (PETERS, 1869)
- Chitra chitra NUTAPHAND, 1986
- Chitra indica (GRAY, 1831)
- Chitra vandijki MCCORD & PRITCHARD, 2003
- Chlamydosaurus kingii GRAY, 1825
- Chlorosoma laticeps (WERNER, 1900)
- 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)
- Christinus alexanderi (STORR, 1987)
- Christinus guentheri (BOULENGER, 1885)
- Christinus marmoratus (GRAY, 1845)
- Chrysemys dorsalis AGASSIZ, 1857
- Chrysemys picta (SCHNEIDER, 1783)
- Chrysopelea ornata (SHAW, 1802)
- Chrysopelea paradisi BOIE, 1827
- Chrysopelea pelias (LINNAEUS, 1758)
- Claudius angustatus COPE, 1865
- Clelia clelia (DAUDIN, 1803)
- Clemmys guttata (SCHNEIDER, 1792)
- Clonophis kirtlandii (KENNICOTT, 1856)
- Cnemaspis affinis (STOLICZKA, 1870)
- Cnemaspis alwisi MENDIS WICKRAMASINGHE & MUNINDRADASA, 2007
- Cnemaspis andersonii (ANNANDALE, 1905)
- Cnemaspis boulengerii STRAUCH, 1887
- Cnemaspis chanardi GRISMER, SUMONTHA, COTA, GRISMER, WOOD, PAUWELS & KUNYA, 2010
- Cnemaspis chanthaburiensis BAUER & DAS, 1998
- Cnemaspis flavolineata (NICHOLLS, 1949)
- Cnemaspis gracilis (BEDDOME, 1870)
- Cnemaspis kandiana (KELAART, 1852)
- Cnemaspis kendallii (GRAY, 1845)
- Cnemaspis kumarasinghei MENDIS WICKRAMASINGHE & MUNINDRADASA, 2007
- Cnemaspis kumpoli TAYLOR, 1963
- Cnemaspis mcguirei GRISMER, GRISMER, WOOD & CHAN, 2008
- Cnemaspis monachorum GRISMER, AHMAD, CHAN, BELABUT, MUIN, WOOD & GRISMER, 2009
- Cnemaspis narathiwatensis GRISMER, SUMONTHA, COTA, GRISMER, WOOD, PAUWELS & KUNYA, 2010
- Cnemaspis nigridia (SMITH, 1925)
- Cnemaspis pemanggilensis GRISMER & DAS, 2006
- Cnemaspis phillipsi MANAMENDRA-ARACHCHI, BATUWITA & PETHIYAGODA, 2007
- Cnemaspis pulchra MANAMENDRA-ARACHCHI, BATUWITA & PETHIYAGODA, 2007
- Cnemaspis punctatonuchalis GRISMER, SUMONTHA, COTA, GRISMER, WOOD, PAUWELS & KUNYA, 2010
- Cnemaspis scalpensis (FERGUSON, 1877)
- Cnemaspis siamensis (SMITH, 1925)
- Cnemaspis tropidogaster (BOULENGER, 1885)
- Cnemaspis wicksi (STOLICZKA, 1873)
- Cnemidophorus arenivagus MARKEZICH, COLE & DESSAUER, 1997
- Cnemidophorus arubensis LIDTH DE JEUDE, 1887
- Cnemidophorus cryptus COLE & DESSAUER, 1993
- Cnemidophorus espeuti BOULENGER, 1885
- Cnemidophorus flavissimus UGUETO, HARVEY & RIVAS, 2010
- Cnemidophorus gaigei RUTHVEN, 1915
- Cnemidophorus gramivagus MCCRYSTAL & DIXON, 1987
- Cnemidophorus lemniscatus (LINNAEUS, 1758)
- Cnemidophorus leucopsammus UGUETO & HARVEY, 2010
- Cnemidophorus murinus (LAURENTI, 1768)
- Cnemidophorus nigricolor PETERS, 1873
- Cnemidophorus rostralis UGUETO & HARVEY, 2010
- Cnemidophorus ruatanus BARBOUR, 1928
- Cnemidophorus ruthveni BURT, 1935
- Cnemidophorus senectus UGUETO, HARVEY & RIVAS, 2010
- Cnemidophorus vanzoi (BASKIN & WILLIAMS, 1966)
- Coelognathus flavolineatus (SCHLEGEL, 1837)
- Coleonyx elegans GRAY, 1845
- Coleonyx mitratus (PETERS, 1863)
- Coleonyx nemoralis KLAUBER, 1945
- Coleonyx reticulatus DAVIS & DIXON, 1958
- Colobosaura modesta (REINHARDT & LÜTKEN, 1862)
- Coluber constrictor LINNAEUS, 1758
- Comptus maculatus (GARMAN, 1888)
- Comptus stenurus (COPE, 1863)
- Concinnia ampla (COVACEVICH & MCDONALD, 1980)
- Concinnia martini WELLS & WELLINGTON, 1985
- Concinnia tenuis (GRAY, 1831)
- Congolacerta vauereselli (TORNIER, 1902)
- Coniophanes bipunctatus (GÜNTHER, 1858)
- Coniophanes fissidens (GÜNTHER, 1858)
- Coniophanes imperialis (BAIRD & GIRARD, 1859)
- Coniophanes piceivittis COPE, 1870
- Conolophus marthae GENTILE & SNELL, 2009
- Conolophus pallidus HELLER, 1903
- Conolophus subcristatus (GRAY, 1831)
- Conophis lineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Contia tenuis (BAIRD & GIRARD, 1852)
- Contomastix lacertoides (DUMÉRIL & BIBRON, 1839)
- Contomastix leachei (PERACCA, 1897)
- Contomastix vittata (BOULENGER, 1902)
- Copeoglossum nigropunctatum (SPIX, 1825)
- Cophosaurus texanus TROSCHEL, 1852
- Cophoscincopus durus (COPE, 1862)
- Cophotis ceylanica PETERS, 1861
- Corallus annulatus (COPE, 1875)
- Corallus hortulana (LINNAEUS, 1758)
- Cordylosaurus subtessellatus (SMITH, 1844)
- Cordylus angolensis (BOCAGE, 1895)
- Cordylus cordylus (LINNAEUS, 1758)
- Coronella austriaca LAURENTI, 1768
- Correlophus ciliatus GUICHENOT, 1866
- Corucia zebrata GRAY, 1855
- Coryphophylax subcristatus (BLYTH, 1860)
- Corytophanes cristatus (MERREM, 1820)
- Corytophanes hernandesii (DEPPE, 1830)
- Corytophanes percarinatus DUMÉRIL, 1856
- 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)
- Crenadactylus horni (LUCAS & FROST, 1895)
- Crenadactylus naso STORR, 1978
- Crenadactylus ocellatus (GRAY, 1845)
- Cricosaura typica GUNDLACH, 1863
- Crisantophis nevermanni (DUNN, 1937)
- Crocodilurus amazonicus SPIX, 1825
- Crocodylus acutus CUVIER, 1807
- Crocodylus johnstoni KREFFT, 1873
- Crocodylus mindorensis SCHMIDT, 1935
- Crocodylus niloticus LAURENTI, 1768
- Crocodylus suchus GEOFFROY SAINT-HILAIRE, 1807
- Crossobamon eversmanni (WIEGMANN, 1834)
- Crotalus angelensis KLAUBER, 1963
- Crotalus durissus LINNAEUS, 1758
- Crotalus polisi MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
- Crotalus simus LATREILLE, 1801
- Crotalus thalassoporus MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
- Crotaphytus collaris (SAY, 1822)
- Crotaphytus insularis VAN DENBURGH & SLEVIN, 1921
- Cryptactites peringueyi (BOULENGER, 1910)
- Cryptoblepharus australis (STERNFELD, 1918)
- Cryptoblepharus boutonii (DES JARDIN, 1831)
- Cryptoblepharus cognatus (BOETTGER, 1881)
- Cryptoblepharus daedalos HORNER, 2007
- Cryptoblepharus juno HORNER, 2007
- Cryptoblepharus litoralis (MERTENS, 1958)
- Cryptoblepharus metallicus (BOULENGER, 1887)
- Cryptoblepharus poecilopleurus (WIEGMANN, 1836)
- Cryptophis nigrostriatus (KREFFT, 1864)
- Cryptophis pallidiceps (GÜNTHER, 1858)
- Ctenoblepharys adspersa TSCHUDI, 1845
- Ctenophorus aurita (STORR, 1981)
- Ctenophorus cristatus (GRAY, 1841)
- Ctenophorus decresii (DUMÉRIL & BIBRON, 1837)
- Ctenophorus gibba (HOUSTON, 1974)
- Ctenophorus parviceps (STORR, 1964)
- Ctenophorus pictus (PETERS, 1866)
- Ctenophorus reticulatus (GRAY, 1845)
- Ctenophorus rubens (STORR, 1965)
- Ctenophorus rufescens (STIRLING & ZIETZ, 1893)
- Ctenosaura acanthura (SHAW, 1802)
- Ctenosaura bakeri STEJNEGER, 1901
- Ctenosaura clarki BAILEY, 1928
- Ctenosaura conspicuosa DICKERSON, 1919
- Ctenosaura flavidorsalis KÖHLER & KLEMMER, 1994
- Ctenosaura hemilopha (COPE, 1863)
- Ctenosaura macrolopha SMITH, 1972
- Ctenosaura melanosterna BUCKLEY & AXTELL, 1997
- Ctenosaura nolascensis SMITH, 1972
- Ctenosaura oaxacana KÖHLER & HASBUN, 2001
- Ctenosaura oedirhina DE QUEIROZ, 1987
- Ctenosaura palearis STEJNEGER, 1899
- Ctenosaura pectinata (WIEGMANN, 1834)
- Ctenosaura quinquecarinata (GRAY, 1842)
- Ctenosaura similis (GRAY, 1831)
- Ctenotus alacer STORR, 1970
- Ctenotus allotropis STORR, 1981
- Ctenotus atlas STORR, 1969
- Ctenotus burbidgei STORR, 1975
- Ctenotus coggeri SADLIER, 1985
- Ctenotus dux STORR, 1969
- Ctenotus euclae STORR, 1971
- Ctenotus helenae STORR, 1969
- Ctenotus ingrami CZECHURA & WOMBEY, 1982
- Ctenotus mesotes HORNER, 2009
- Ctenotus olympicus HUTCHINSON & DONNELLAN, 1999
- Ctenotus orientalis STORR, 1971
- Ctenotus quinkan INGRAM, 1979
- Ctenotus schomburgkii (PETERS, 1863)
- Ctenotus storri RANKIN, 1978
- Ctenotus taeniatus (MITCHELL, 1949)
- Ctenotus taeniolatus (WHITE, 1790)
- Ctenotus tanamiensis STORR, 1970
- Ctenotus terrareginae INGRAM & CZECHURA, 1990
- Ctenotus uber STORR, 1969
- Cubatyphlops anchaurus (THOMAS & HEDGES, 2007)
- Cubatyphlops anousius (THOMAS & HEDGES, 2007)
- Cubatyphlops arator (THOMAS & HEDGES, 2007)
- Cubatyphlops biminiensis (RICHMOND, 1955)
- Cubatyphlops contorhinus (THOMAS & HEDGES, 2007)
- Cubatyphlops golyathi (DOMÍNGUEZ & MORENO, 2009)
- Cubatyphlops notorachius (THOMAS & HEDGES, 2007)
- Cubatyphlops perimychus (THOMAS & HEDGES, 2007)
- Cubatyphlops satelles (THOMAS & HEDGES, 2007)
- Cubophis brooksi (BARBOUR, 1914)
- Cuora amboinensis (DAUDIN, 1801)
- Cuora aurocapitata LUO & ZONG, 1988
- Cuora bourreti OBST & REIMANN, 1994
- Cuora couro (SCHWEIGGER, 1812)
- Cuora cyclornata BLANCK, MCCORD & LE MINH, 2006
- Cuora flavomarginata (GRAY, 1863)
- Cuora galbinifrons BOURRET, 1939
- Cuora lineata MCCORD & PHILIPPEN, 1998
- Cuora mccordi ERNST, 1988
- Cuora mouhotii (GRAY, 1862)
- Cuora pani SONG, 1984
- Cuora philippinensis BLANCK, GAILLARD, PROTIVA, WHEATLEY, SHI, LIU, RAY & ANDERS, 2023
- Cuora picturata LEHR, FRITZ & OBST, 1998
- Cuora trifasciata (BELL, 1825)
- Cuora yunnanensis (BOULENGER, 1906)
- Cuora zhoui ZHAO, ZHOU & YE, 1990
- Cyclanorbis elegans (GRAY, 1869)
- Cyclanorbis senegalensis (DUMÉRIL & BIBRON, 1835)
- Cyclemys atripons IVERSON & MCCORD, 1997
- Cyclemys dentata (GRAY, 1831)
- Cyclemys enigmatica FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cyclemys gemeli FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cyclemys oldhamii GRAY, 1863
- Cyclemys pulchristriata FRITZ, GAULKE & LEHR, 1997
- Cycloderma aubryi (DUMÉRIL, 1856)
- Cycloderma frenatum PETERS, 1854
- Cyclodomorphus branchialis (GÜNTHER, 1867)
- Cyclodomorphus casuarinae (DUMÉRIL & BIBRON, 1839)
- Cyclura carinata HARLAN, 1824
- Cyclura collei GRAY, 1845
- Cyclura cornuta (BONNATERRE, 1789)
- Cyclura cychlura (CUVIER, 1829)
- Cyclura lewisi GRANT, 1941
- Cyclura nubila (GRAY, 1831)
- Cyclura onchiopsis (COPE, 1885)
- Cyclura pinguis BARBOUR, 1917
- Cyclura ricordii (DUMÉRIL & BIBRON, 1837)
- Cyclura rileyi STEJNEGER, 1903
- Cyclura stejnegeri BARBOUR & NOBLE, 1916
- Cylindrophis ruffus (LAURENTI, 1768)
- Cynisca feae (BOULENGER, 1906)
- Cynisca kraussi (PETERS, 1878)
- Cynisca leucura (DUMÉRIL & BIBRON, 1839)
- Cyrtodactylus agusanensis (TAYLOR, 1915)
- Cyrtodactylus amphipetraeus CHOMDEJ, SUWANNAPOOM, PAWANGKHANANT, PRADIT, NAZAROV, GRISMER & POYARKOV, 2020
- Cyrtodactylus annandalei BAUER, 2003
- Cyrtodactylus annulatus (TAYLOR, 1915)
- Cyrtodactylus auralensis MURDOCH, GRISMER, WOOD, NEANG, POYARKOV, TRI, NAZAROV, AOWPHOL, PAUWELS, NGUYEN & GRISMER, 2019
- Cyrtodactylus aurensis GRISMER, 2005
- Cyrtodactylus ayeyarwadyensis BAUER, 2003
- Cyrtodactylus badenensis SANG, ORLOV & DAREVSKY, 2006
- Cyrtodactylus baluensis (MOCQUARD, 1890)
- Cyrtodactylus battalensis KHAN, 1993
- Cyrtodactylus biordinis BROWN & MCCOY, 1980
- Cyrtodactylus brevipalmatus (SMITH, 1923)
- Cyrtodactylus caovansungi ORLOV, QUANG TRUONG, NAZAROV, ANANJEVA & NGOC SANG, 2007
- Cyrtodactylus cardamomensis MURDOCH, GRISMER, WOOD, NEANG, POYARKOV, TRI, NAZAROV, AOWPHOL, PAUWELS, NGUYEN & GRISMER, 2019
- Cyrtodactylus cayuensis LI, 2007
- Cyrtodactylus condorensis (SMITH, 1921)
- Cyrtodactylus consobrinus (PETERS, 1871)
- Cyrtodactylus darmandvillei (WEBER, 1890)
- Cyrtodactylus deccanensis (GÜNTHER, 1864)
- Cyrtodactylus dumnuii BAUER, KUNYA, SUMONTHA, NIYOMWAN, PAUWELS, CHANHOME & KUNYA, 2010
- Cyrtodactylus eisenmanae NGO VAN TRI, 2008
- Cyrtodactylus elok DRING, 1979
- Cyrtodactylus fasciolatus (BLYTH, 1861)
- Cyrtodactylus fraenatus (GÜNTHER, 1864)
- Cyrtodactylus gansi BAUER, 2003
- Cyrtodactylus gordongekkoi (DAS, 1994)
- Cyrtodactylus himalayanus DUDA & SAHI, 1978
- Cyrtodactylus hinnamnoensis LUU, BONKOWSKI, NGUYEN, LE, SCHNEIDER, NGO & ZIEGLER, 2016
- Cyrtodactylus interdigitalis ULBER, 1993
- Cyrtodactylus intermedius (SMITH, 1917)
- Cyrtodactylus irregularis (SMITH, 1921)
- Cyrtodactylus jeyporensis (BEDDOME, 1878)
- Cyrtodactylus khasiensis (JERDON, 1870)
- Cyrtodactylus lateralis (WERNER, 1896)
- Cyrtodactylus lawderanus (STOLICZKA, 1871)
- Cyrtodactylus macrotuberculatus GRISMER & AHMAD, 2008
- Cyrtodactylus majulah GRISMER, WOOD & LIM, 2012
- Cyrtodactylus malayanus (DE ROOIJ, 1915)
- Cyrtodactylus mamanwa WELTON, SILER, LINKEM, DIESMOS & BROWN, 2010
- Cyrtodactylus marmoratus GRAY, 1831
- Cyrtodactylus martini NGO VAN TRI, 2011
- Cyrtodactylus martinstolli (DAREVSKY, HELFENBERGER, ORLOV & SHAH, 1998)
- Cyrtodactylus matsuii HIKIDA, 1990
- Cyrtodactylus mcdonaldi SHEA, COUPER, WILMER & AMEY, 2011
- Cyrtodactylus mimikanus (BOULENGER, 1914)
- Cyrtodactylus montanus AGARWAL, MAHONY, GIRI, CHAITANYA & BAUER, 2018
- Cyrtodactylus myintkyawthurai GRISMER, WOOD, QUAH, MURDOCH, M GRISMER, HERR, ESPINOZA, BROWN & LIN, 2018
- Cyrtodactylus nigriocularis SANG, ORLOV & DAREVSKY, 2006
- Cyrtodactylus novaeguineae (SCHLEGEL, 1837)
- Cyrtodactylus oldhami (THEOBALD, 1876)
- Cyrtodactylus otai NGUYEN, LE, VAN PHAM, NGO, HOANG, THE PHAM & ZIEGLER, 2015
- Cyrtodactylus papuensis (BRONGERSMA, 1934)
- Cyrtodactylus peguensis (BOULENGER, 1893)
- Cyrtodactylus phongnhakebangensis ZIEGLER, RÖSLER, HERRMANN & THANH, 2003
- Cyrtodactylus puhuensis NGUYEN, YANG, THI LE, NGUYEN, ORLOV, HOANG, NGUYEN, JIN, RAO, HOANG, CHE, MURPHY & ZHANG, 2014
- Cyrtodactylus pulchellus GRAY, 1827
- Cyrtodactylus quadrivirgatus TAYLOR, 1962
- Cyrtodactylus rubidus (BLYTH, 1861)
- Cyrtodactylus rukhadeva GRISMER, SUWANNAPOOM, PAWANGKHANANT, NAZAROV, YUSHCHENKO, NAIDUANGCHAN, LE, LUU & POYARKOV, 2021
- Cyrtodactylus russelli BAUER, 2003
- Cyrtodactylus sadleiri (WELLS & WELLINGTON, 1985)
- Cyrtodactylus salomonensis RÖSLER, RICHARDS & GÜNTHER, 2007
- Cyrtodactylus seribuatensis YOUMANS & GRISMER, 2006
- Cyrtodactylus sermowaiensis (DE ROOIJ, 1915)
- Cyrtodactylus speciosus (BEDDOME, 1870)
- Cyrtodactylus spelaeus NAZAROV, POYARKOV, ORLOV, NGUYEN, MILTO, MARTYNOV, KONSTANTINOV & CHULISOV, 2014
- Cyrtodactylus spinosus LINKEM, MCGUIRE, HAYDEN, SETIADI, BICKFORD & BROWN, 2008
- Cyrtodactylus sworderi (SMITH, 1925)
- Cyrtodactylus tamaiensis (SMITH, 1940)
- Cyrtodactylus thirakhupti PAUWELS, BAUER, SUMONTHA & CHANHOME, 2004
- Cyrtodactylus tibetanus (BOULENGER, 1905)
- Cyrtodactylus tigroides BAUER, SUMONTHA & PAUWELS, 2003
- Cyrtodactylus tiomanensis DAS & LIM, 2000
- Cyrtodactylus triedrus (GÜNTHER, 1864)
- Cyrtodactylus tripuraensis AGARWAL, MAHONY, GIRI, CHAITANYA & BAUER, 2018
- Cyrtodactylus tuberculatus (LUCAS & FROST, 1900)
- Cyrtodactylus urbanus PURKAYASTHA, DAS, BOHRA, BAUER & AGARWAL, 2020
- Cyrtodactylus zebraicus TAYLOR, 1962
- Cyrtodactylus zhaoermii SHI & ZHAO, 2010
- Cyrtodactylus ziegleri NAZAROV, ORLOV, NGUYEN & HO, 2008
- Cyrtopodion aravallensis (GILL, 1997)
- Cyrtopodion brevipes (BLANFORD, 1874)
- Cyrtopodion kachhense (STOLICZKA, 1872)
- Cyrtopodion rhodocauda (BAIG, 1998)
- Cyrtopodion rohtasfortai (KHAN & TASNIM, 1990)
- Cyrtopodion scabrum (HEYDEN, 1827)
- Daboia palaestinae (WERNER, 1938)
- Daboia siamensis (SMITH, 1917)
- Dactylocnemis pacificus (GRAY, 1842)
- Dalmatolacerta oxycephala (SCHLEGEL, 1839)
- Dalophia gigantea (PERACCA, 1903)
- Darevskia bithynica (MÉHELY, 1909)
- Darevskia brauneri (MÉHELY, 1909)
- Darevskia caspica AHMADZADEH, FLECKS, CARRETERO, MOZAFFARI, BÖHME, HARRIS, FREITAS & RÖDDER, 2013
- Darevskia chlorogaster (BOULENGER, 1908)
- Darevskia clarkorum (DAREVSKY & VEDMEDERJA, 1977)
- Darevskia defilippii (CAMERANO, 1877)
- Darevskia derjugini (NIKOLSKY, 1898)
- Darevskia kamii AHMADZADEH, FLECKS, CARRETERO, MOZAFFARI, BÖHME, HARRIS, FREITAS & RÖDDER, 2013
- Darevskia kopetdaghica AHMADZADEH, FLECKS, CARRETERO, MOZAFFARI, BÖHME, HARRIS, FREITAS & RÖDDER, 2013
- Darevskia lindholmi (SZCZERBAK, 1962)
- Darevskia mirabilis ARRIBAS, ILGAZ, KUMLUTAŞ, DURMUŞ, AVCI & ÜZÜM, 2013
- Darevskia obscura (LANTZ & CYRÉN, 1936)
- Darevskia rudis (BEDRIAGA, 1886)
- Darevskia saxicola (EVERSMANN, 1834)
- Darevskia schaekeli AHMADZADEH, FLECKS, CARRETERO, MOZAFFARI, BÖHME, HARRIS, FREITAS & RÖDDER, 2013
- Darevskia spitzenbergerae (EISELT, DAREVSKY & SCHMIDTLER, 1992)
- Darevskia steineri (EISELT, 1995)
- Darevskia valentini (BOETTGER, 1892)
- Dasia olivacea GRAY, 1839
- Dasia vittata (EDELING, 1865)
- Dasia vyneri (SHELFORD, 1905)
- Deirochelys reticularia (LATREILLE, 1801)
- Delma fraseri GRAY, 1831
- Delma impar (FISCHER, 1882)
- Delma inornata KLUGE, 1974
- Delma labialis SHEA, 1987
- Delma molleri LÜTKEN, 1863
- Delma pax KLUGE, 1974
- Delma petersoni SHEA, 1991
- Delma tincta DE VIS, 1888
- Demansia angusticeps (MACLEAY, 1888)
- Demansia reticulata (GRAY, 1842)
- Dendragama boulengeri DORIA, 1888
- Dendrelaphis andamanensis (ANDERSON, 1871)
- Dendrelaphis calligaster (GÜNTHER, 1867)
- Dendrelaphis caudolineatus (GRAY, 1834)
- Dendrelaphis flavescens GAULKE, 1994
- Dendrelaphis gastrostictus (BOULENGER, 1894)
- Dendrelaphis humayuni TIWARI & BISWAS, 1973
- Dendrelaphis keiensis (MERTENS, 1926)
- Dendrelaphis levitoni VAN ROOIJEN & VOGEL, 2012
- Dendrelaphis lineolatus (JACQUINOT & GUICHENOT, 1853)
- Dendrelaphis lorentzii (LIDTH DE JEUDE, 1911)
- Dendrelaphis luzonensis LEVITON, 1961
- Dendrelaphis macrops (GÜNTHER, 1877)
- Dendrelaphis modestus BOULENGER, 1894
- Dendrelaphis papuensis BOULENGER, 1895
- Dendrelaphis philippinensis (GÜNTHER, 1879)
- Dendrelaphis pictus (GMELIN, 1789)
- Dendrelaphis punctulatus (GRAY, 1826)
- Dendrelaphis schokari (KUHL, 1820)
- Dendrelaphis striolatus (PETERS, 1867)
- Dendrelaphis terrificus (PETERS, 1872)
- Dendrelaphis tristis (DAUDIN, 1803)
- Dendrophidion apharocybe CADLE, 2012
- Dendrophidion percarinatum (COPE, 1893)
- Dendrophidion rufiterminorum CADLE & SAVAGE, 2012
- Denisonia devisi (WAITE & LONGMAN, 1920)
- Denisonia maculata (STEINDACHNER, 1867)
- Dermatemys mawii GRAY, 1847
- Dermochelys coriacea (VANDELLI, 1761)
- Diadophis punctatus (LINNAEUS, 1766)
- Diaphorolepis wagneri JAN, 1863
- Dibamus novaeguineae DUMÉRIL & BIBRON, 1839
- Dicrodon guttulatum DUMÉRIL & BIBRON, 1839
- Dicrodon heterolepis (TSCHUDI, 1845)
- Dicrodon holmbergi SCHMIDT, 1957
- Dierogekko validiclavis (SADLIER, 1988)
- Dieurostus dussumieri (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Dinarolacerta mosorensis (KOLOMBATOVIC, 1886)
- Dinodon cardamomensis DALTRY & WÜSTER, 2002
- Dinodon chapaensis (ANGEL & BOURRET, 1933)
- Dinodon fasciatus (ANDERSON, 1879)
- Dinodon gongshan VOGEL & LUO, 2011
- Dinodon multifasciatus (MAKI, 1931)
- Dinodon multizonatus (ZHAO & JIANG, 1981)
- Dinodon obvelatus WANG, YU, VOGEL & CHE, 2020
- Dinodon ruhstrati (FISCHER, 1886)
- Dinodon septentrionalis (GÜNTHER, 1875)
- Diplodactylus ameyi COUPER & OLIVER, 2016
- Diplodactylus barraganae COUPER, OLIVER & PEPPER, 2014
- Diplodactylus calcicolus HUTCHINSON, DOUGHTY & OLIVER, 2009
- Diplodactylus furcosus PETERS, 1863
- Diplodactylus laevis (STERNFELD, 1925)
- Diplodactylus pulcher (STEINDACHNER, 1870)
- Diplodactylus vittatus GRAY, 1832
- Diplodactylus wiru HUTCHINSON, DOUGHTY & OLIVER, 2009
- Diploderma brevicauda (MANTHEY, DENZER, HOU & WANG, 2012)
- Diploderma makii (OTA, 1989)
- Diploderma polygonatum HALLOWELL, 1861
- Diploderma splendidum (BARBOUR & DUNN, 1919)
- Diploderma swinhonis (GÜNTHER, 1864)
- Diploderma varcoae (BOULENGER, 1918)
- Diploderma yulongense (MANTHEY, DENZER, HOU & WANG, 2012)
- Diploglossus fasciatus (GRAY, 1831)
- Diplolaemus bibronii BELL, 1843
- Diplolaemus darwinii BELL, 1843
- Diplolaemus sexcinctus CEI, SCOLARO & VIDELA, 2003
- Diporiphora ameliae EMMOTT, COUPER, MELVILLE & CHAPPLE, 2012
- Diporiphora australis (STEINDACHNER, 1867)
- Diporiphora bilineata GRAY, 1842
- Diporiphora linga HOUSTON, 1977
- Diporiphora paraconvergens DOUGHTY, KEALLEY & MELVILLE, 2012
- Diporiphora vescus DOUGHTY, KEALLEY & MELVILLE, 2012
- Diporiphora winneckei LUCAS & FROST, 1896
- Dipsadoboa unicolor GÜNTHER, 1858
- Dipsas albifrons (SAUVAGE, 1884)
- 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 catesbyi (SENTZEN, 1796)
- Dipsas elegans (BOULENGER, 1896)
- Dipsas gracilis (BOULENGER, 1902)
- Dipsas indica LAURENTI, 1768
- Dipsas peruana (BOETTGER, 1898)
- Dipsas pratti (BOULENGER, 1897)
- Dipsas sanctijoannis (BOULENGER, 1911)
- Dipsas temporalis (WERNER, 1909)
- Dipsas vermiculata PETERS, 1960
- Dipsas viguieri (BOCOURT, 1884)
- Dipsosaurus catalinensis VAN DENBURGH, 1922
- Dipsosaurus dorsalis (BAIRD & GIRARD, 1852)
- Dixonius melanostictus (TAYLOR, 1962)
- Dixonius siamensis (BOULENGER, 1899)
- Dogania subplana (GEOFFROY SAINT-HILAIRE, 1809)
- Dopasia formosensis (KISHIDA, 1930)
- Dopasia gracilis (GRAY, 1845)
- Dopasia harti (BOULENGER, 1899)
- Dracaena guianensis DAUDIN, 1801
- Dracaena paraguayensis AMARAL, 1950
- Draco beccarii PETERS & DORIA, 1878
- Draco bimaculatus GÜNTHER, 1864
- Draco boschmai HENNIG, 1936
- Draco cornutus GÜNTHER, 1864
- Draco dussumieri DUMÉRIL & BIBRON, 1837
- Draco fimbriatus KUHL, 1820
- Draco formosus BOULENGER, 1900
- Draco haematopogon GRAY, 1831
- Draco hennigi MUSTERS, 1983
- Draco indochinensis SMITH, 1928
- Draco lineatus DAUDIN, 1802
- Draco maculatus (GRAY, 1845)
- Draco modiglianii VINCIGUERRA, 1892
- Draco norvillii ALCOCK, 1895
- Draco obscurus BOULENGER, 1887
- Draco ornatus (GRAY, 1845)
- Draco palawanensis MCGUIRE & ALCALA, 2000
- Draco quadrasi BOETTGER, 1893
- Draco reticulatus GÜNTHER, 1864
- Draco rhytisma MUSTERS, 1983
- Draco spilonotus GÜNTHER, 1872
- Draco spilopterus (WIEGMANN, 1834)
- Draco sumatranus SCHLEGEL, 1844
- Draco taeniopterus GÜNTHER, 1861
- Draco timoriensis KUHL, 1820
- Draco volans LINNAEUS, 1758
- Draco walkeri BOULENGER, 1891
- Dravidogecko anamallensis (GÜNTHER, 1875)
- Dravidoseps pruthi (SHARMA, 1977)
- Drepanoides anomalus (JAN, 1863)
- Dromicodryas bernieri (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymarchon melanurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymobius chloroticus (COPE, 1886)
- Drymobius margaritiferus (SCHLEGEL, 1837)
- Drymobius melanotropis (COPE, 1875)
- Drysdalia coronoides (GÜNTHER, 1858)
- Ebenavia inunguis BOETTGER, 1878
- Echinosaura horrida BOULENGER, 1890
- Echiopsis curta (SCHLEGEL, 1837)
- Echis borkini CHERLIN, 1990
- Echis carinatus (SCHNEIDER, 1801)
- Echis jogeri CHERLIN, 1990
- Echis khosatzkii CHERLIN, 1990
- Echis leucogaster ROMAN, 1972
- Echis megalocephalus CHERLIN, 1990
- Echis omanensis BABOCSAY, 2004
- Echis pyramidum (GEOFFROY SAINT-HILAIRE, 1827)
- Ecpleopus gaudichaudii DUMÉRIL & BIBRON, 1839
- Egernia cunninghami (GRAY, 1832)
- Egernia douglasi GLAUERT, 1956
- Egernia eos DOUGHTY, KEALLEY & DONNELLAN, 2011
- Egernia epsisolus DOUGHTY, KEALLEY & DONNELLAN, 2011
- Eirenis kermanensis RAJABIZADEH, SCHMIDTLER, ORLOV & SOLEIMANI, 2012
- Eirenis medus (CHERNOV, 1940)
- Eirenis punctatolineatus (BOETTGER, 1892)
- Elaphe taeniura COPE, 1861
- Elaphe urartica JABLONSKI, KUKUSHKIN, AVCI, BUNYATOVA, ILGAZ, TUNIYEV & JANDZIK, 2019
- Elapsoidea guentherii BOCAGE, 1866
- Elasmodactylus tuberculosus BOULENGER, 1895
- Elgaria cedrosensis (FITCH, 1934)
- Elgaria multicarinata (BLAINVILLE, 1835)
- Elgaria paucicarinata (FITCH, 1934)
- Elseya albagula THOMSON, GEORGES & LIMPUS, 2006
- Elseya branderhorsti (OUWENS, 1914)
- Elseya dentata (GRAY, 1863)
- Elseya flaviventralis THOMSON & GEORGES, 2016
- Elseya irwini CANN, 1997
- Elseya lavarackorum (WHITE & ARCHER, 1994)
- Elseya novaeguineae (MEYER, 1874)
- Elseya schultzei (VOGT, 1911)
- Elusor macrurus CANN & LEGLER, 1994
- Emoia atrocostata (LESSON, 1829)
- Emoia kordoana (MEYER, 1874)
- Emoia longicauda (MACLEAY, 1877)
- Emoia nativitatis (BOULENGER, 1887)
- Emydocephalus annulatus KREFFT, 1869
- Emydoidea blandingii (HOLBROOK, 1838)
- Emydura australis (GRAY, 1841)
- Emydura macquarii (GRAY, 1830)
- Emydura subglobosa (KREFFT, 1876)
- Emydura tanybaraga CANN, 1997
- Emys orbicularis (LINNAEUS, 1758)
- Emys trinacris FRITZ, FATTIZZO, GUICKING, TRIPEPI, PENNISI, LENK, JOGER & WINK, 2005
- Enuliophis sclateri (BOULENGER, 1894)
- Enulius bifoveatus MCCRANIE & KÖHLER, 1999
- Enulius flavitorques (COPE, 1868)
- Enulius roatanensis MCCRANIE & KÖHLER, 1999
- Enyalioides anisolepis TORRES-CARVAJAL, VENEGAS & DE QUEIROZ, 2015
- Enyalioides annularis (O'SHAUGHNESSY, 1881)
- Enyalioides cofanorum DUELLMAN, 1973
- Enyalioides heterolepis (BOCOURT, 1874)
- Enyalioides laticeps (GUICHENOT, 1855)
- Enyalius catenatus (WIED-NEUWIED, 1821)
- Ephalophis greyae SMITH, 1931
- Epibator greeri (BÖHME, 1979)
- Epibator nigrofasciolatus (PETERS, 1869)
- Epicrates assisi MACHADO, 1944
- Epicrates cenchria (LINNAEUS, 1758)
- Epicrates crassus COPE, 1862
- Epictia albifrons (WAGLER, 1824)
- Epictia albipuncta (BURMEISTER, 1861)
- Epictia ater (TAYLOR, 1940)
- Epictia australis (FREIBERG & OREJAS-MIRANDA, 1968)
- Epictia bakewelli (OLIVER, 1937)
- Epictia borapeliotes (VANZOLINI, 1996)
- Epictia columbi (KLAUBER, 1939)
- Epictia diaplocia (OREJAS-MIRANDA, 1969)
- Epictia goudotii (DUMÉRIL & BIBRON, 1844)
- Epictia magnamaculata (TAYLOR, 1940)
- Epictia munoai (OREJAS-MIRANDA, 1961)
- Epictia phenops (COPE, 1875)
- Epictia signata (JAN, 1861)
- Epictia striatula (SMITH & LAUFE, 1945)
- Epictia subcrotilla (KLAUBER, 1939)
- Epictia tenella (KLAUBER, 1939)
- Epictia undecimstriata (SCHLEGEL, 1839)
- Epictia vellardi (LAURENT, 1984)
- Eremias arguta (PALLAS, 1773)
- Eremias buechneri BEDRIAGA, 1907
- Eremias dzungarica ORLOVA, POYARKOV, CHIRIKOVA, NAZAROV, MUNKHBAATAR, MUNKHBAYAR & TERBISH, 2017
- Eremias kokshaaliensis EREMCHENKO & PANFILOV, 1999
- Eremias multiocellata GÜNTHER, 1872
- Eremias przewalskii (STRAUCH, 1876)
- Eremias stummeri WETTSTEIN, 1940
- Eremias szczerbaki EREMCHENKO, PANFILOV & ZARINENKO, 1992
- Eremias yarkandensis BLANFORD, 1875
- Eremiascincus emigrans (LIDTH DE JEUDE, 1895)
- Eremiascincus richardsonii (GRAY, 1845)
- Eretmochelys imbricata (LINNAEUS, 1766)
- Eroticoscincus graciloides (LÖNNBERG & ANDERSSON, 1913)
- Erymnochelys madagascariensis (GRANDIDIER, 1867)
- Erythrolamprus albertguentheri (GRAZZIOTIN, ZAHER, MURPHY, SCROCCHI, BENAVIDES, ZHANG & BONATTO, 2012)
- Erythrolamprus almadensis (WAGLER, 1824)
- Erythrolamprus atraventer (DIXON & THOMAS, 1985)
- Erythrolamprus ceii (DIXON, 1991)
- Erythrolamprus cursor (LACÉPÈDE, 1789)
- Erythrolamprus jaegeri (GÜNTHER, 1858)
- Erythrolamprus maryellenae (DIXON, 1985)
- Erythrolamprus mimus (COPE, 1868)
- Erythrolamprus poecilogyrus (WIED-NEUWIED, 1824)
- Erythrolamprus pygmaeus (COPE, 1868)
- Erythrolamprus typhlus (LINNAEUS, 1758)
- Erythrolamprus viridis (GÜNTHER, 1862)
- Eryx elegans (GRAY, 1849)
- Eryx jaculus (LINNAEUS, 1758)
- Eryx jayakari BOULENGER, 1888
- Eryx johnii (RUSSELL, 1801)
- Eryx miliaris (PALLAS, 1773)
- Eryx vittatus CHERNOV, 1959
- Eublepharis hardwickii GRAY, 1827
- Eublepharis macularius (BLYTH, 1854)
- Eugongylus rufescens (SHAW, 1802)
- Eulamprus quoyii (DUMÉRIL & BIBRON, 1839)
- Eulamprus tympanum (LÖNNBERG & ANDERSSON, 1915)
- Euleptes europaea (GENÉ, 1839)
- Eumeces schneiderii (DAUDIN, 1802)
- Eumeces zarudnyi NIKOLSKY, 1900
- Eumecia anchietae BOCAGE, 1870
- Eunectes murinus (LINNAEUS, 1758)
- Eunectes notaeus COPE, 1862
- Eurydactylodes vieillardi (BAVAY, 1869)
- Eurylepis taeniolata BLYTH, 1854
- Euspondylus acutirostris (PETERS, 1863)
- Euspondylus auyanensis MYERS, RIVAS & JADIN, 2009
- Euspondylus maculatus TSCHUDI, 1845
- Eutropis beddomei (JERDON, 1870)
- Eutropis bibronii (GRAY, 1839)
- Eutropis innotata (BLANFORD, 1870)
- Eutropis macrophthalma (MAUSFELD & BÖHME, 2002)
- Eutropis macularia (BLYTH, 1853)
- Eutropis multifasciata (KUHL, 1820)
- Eutropis nagarjuni (SHARMA, 1969)
- Eutropis quadricarinata (BOULENGER, 1887)
- Eutropis rudis (BOULENGER, 1887)
- Eutropis trivittata (HARDWICKE & GRAY, 1827)
- Farancia abacura (HOLBROOK, 1836)
- Farancia erytrogramma (PALISOT DE BEAUVOIS, 1802)
- Feylinia currori GRAY, 1845
- Feylinia elegans (HALLOWELL, 1854)
- Feylinia grandisquamis MÜLLER, 1910
- Ficimia publia COPE, 1866
- Fimbrios smithi ZIEGLER, DAVID, MIRALLES, VAN KIEN & QUANG TRUONG, 2008
- Flexiseps alluaudi (BRYGOO, 1981)
- Flexiseps crenni (MOCQUARD, 1906)
- Flexiseps elongatus (ANGEL, 1934)
- Flexiseps johannae (GÜNTHER, 1880)
- Flexiseps melanurus (GÜNTHER, 1877)
- Flexiseps ornaticeps (BOULENGER, 1896)
- 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)
- Fowlea yunnanensis (ANDERSON, 1879)
- Furcifer belalandaensis (BRYGOO & DOMERGUE, 1970)
- Furcifer bifidus (BRONGNIART, 1800)
- Furcifer monoceras (BOETTGER, 1913)
- Furcifer polleni (PETERS, 1874)
- Furina diadema (SCHLEGEL, 1837)
- Furina ornata (GRAY, 1842)
- Gallotia caesaris (LEHRS, 1914)
- Gallotia galloti (OUDART, 1839)
- Galvarinus attenuatus WALKER, 1945
- Gambelia wislizenii (BAIRD & GIRARD, 1852)
- Garthia gaudichaudii (DUMÉRIL & BIBRON, 1836)
- Garthius chaseni (SMITH, 1931)
- Gastropholis echinata (COPE, 1862)
- Gastropholis vittata FISCHER, 1886
- Gavialis gangeticus (GMELIN, 1789)
- Geckolepis maculata PETERS, 1880
- Geckolepis modesta METHUEN & HEWITT, 1913
- Geckolepis polylepis BOETTGER, 1893
- Geckolepis typica GRANDIDIER, 1867
- Gehyra brevipalmata (PETERS, 1874)
- Gehyra catenata LOW, 1979
- Gehyra dubia (MACLEAY, 1877)
- Gehyra kimberleyi BÖRNER & SCHÜTTLER, 1982
- Gehyra lazelli (WELLS & WELLINGTON, 1985)
- Gehyra minuta KING, 1982
- Gehyra montium STORR, 1982
- Gehyra multiporosa DOUGHTY, PALMER, SISTROM, BAUER & DONNELLAN, 2012
- Gehyra oceanica (LESSON, 1829)
- Gehyra vorax GIRARD, 1858
- Gekko albomaculatus (GIEBEL, 1861)
- Gekko brooksii BOULENGER, 1920
- Gekko browni (RUSSELL, 1979)
- Gekko gecko (LINNAEUS, 1758)
- Gekko hokouensis POPE, 1928
- Gekko iskandari (BROWN, SUPRIATNA & OTA, 2000)
- Gekko jinjiangensis HOU, SHI, WANG, SHU, ZHENG, QI, LIU, JIANG & XIE, 2021
- Gekko kabkaebin (GRISMER, WOOD, GRISMER, QUAH, THY, PHIMMACHAK, SIVONGXAY, SEATEUN, STUART, SILER, MULCAHY, ANAMZA & BROWN, 2019)
- Gekko kuhli (STEJNEGER, 1902)
- Gekko monarchus (SCHLEGEL, 1836)
- Gekko petricolus TAYLOR, 1962
- Gekko reevesii (GRAY, 1831)
- Gekko siamensis GROSSMANN & ULBER, 1990
- Gekko smithii GRAY, 1842
- Gekko stoliczkai CHANDRAMOULI, GOKULAKRISHNAN, SIVAPERUMAN & GRISMER, 2021
- Gekko trinotaterra (BROWN, 1999)
- Gekko verreauxi TYTLER, 1865
- Gekko vittatus HOUTTUYN, 1782
- Gekko yakuensis MATSUI & OKADA, 1968
- Gelanesaurus cochranae (BURT & BURT, 1931)
- Geocalamus acutus STERNFELD, 1912
- Geochelone elegans (SCHOEPFF, 1795)
- Geochelone platynota (BLYTH, 1863)
- Geoclemys hamiltonii (GRAY, 1831)
- Geoemyda japonica FAN, 1931
- Geoemyda spengleri (GMELIN, 1789)
- Geomyersia glabra GREER & PARKER, 1968
- Geophis damiani WILSON, MCCRANIE & WILLIAMS, 1998
- Geophis fulvoguttatus MERTENS, 1952
- Geophis hoffmanni (PETERS, 1859)
- Geophis nephodrymus TOWNSEND & WILSON, 2006
- Geophis rhodogaster (COPE, 1868)
- Geophis sartorii (COPE, 1863)
- Geoscincus haraldmeieri (BÖHME, 1976)
- Gerarda prevostiana (EYDOUX & GERVAIS, 1837)
- Gerrhonotus liocephalus WIEGMANN, 1828
- Gerrhopilus thurstoni (BOETTGER, 1890)
- Gerrhosaurus flavigularis WIEGMANN, 1828
- Glaphyromorphus crassicaudus (DUMÉRIL & DUMÉRIL, 1851)
- Glaphyromorphus nigricaudis (MACLEAY, 1877)
- Glaphyromorphus punctulatus (PETERS, 1871)
- Glaucomastix abaetensis (REIS DIAS, ROCHA & VRCIBRADIC, 2002)
- Glaucomastix littoralis (ROCHA, BAMBERG ARAÚJO, VRCIBRADIC & MAMEDE DA COSTA, 2000)
- Gloydius brevicaudus (STEJNEGER, 1907)
- Gloydius chambensis KUTTALAM, SANTRA, OWENS, SELVAN, MUKHERJEE, GRAHAM, TOGRIDOU, BHARTI, SHI, SHANKER & MALHOTRA, 2022
- Gloydius changdaoensis LI, 1999
- Gloydius cognatus (GLOYD, 1977)
- Gloydius halys (PALLAS, 1776)
- Gloydius himalayanus (GÜNTHER, 1864)
- Gloydius intermedius (STRAUCH, 1868)
- Gloydius stejnegeri (RENDAHL, 1933)
- Glyptemys insculpta (LE CONTE, 1830)
- Glyptemys muhlenbergii (SCHOEPFF, 1801)
- Goggia braacki (GOOD, BAUER & BRANCH, 1996)
- Goggia essexi (HEWITT, 1925)
- Goggia gemmula (BAUER, BRANCH & GOOD, 1996)
- Goggia hewitti (BRANCH, BAUER & GOOD, 1995)
- Goggia hexapora (BRANCH, BAUER & GOOD, 1995)
- Goggia incognita HEINICKE, TURK & BAUER, 2017
- Goggia lineata (GRAY, 1838)
- Goggia matzikamaensis HEINICKE, TURK & BAUER, 2017
- Goggia microlepidota (FITZSIMONS, 1939)
- Goggia rupicola (FITZSIMONS, 1938)
- Gonatodes albogularis (DUMÉRIL & BIBRON, 1836)
- Gonatodes annularis BOULENGER, 1887
- Gonatodes concinnatus (O'SHAUGHNESSY, 1881)
- Gongylomorphus bojerii (DESJARDIN, 1831)
- Gongylosoma calamaria (GÜNTHER, 1858)
- Gongylosoma longicaudus (PETERS, 1871)
- Gongylosoma nicobariensis (STOLICZKA, 1870)
- Gongylosoma scriptum (THEOBALD, 1868)
- Gonionotophis brussauxi (MOCQUARD, 1889)
- Goniurosaurus hainanensis BARBOUR, 1908
- Goniurosaurus huuliensis ORLOV, RYABOV, NGUYEN, NGUYEN & HO, 2008
- Goniurosaurus luii GRISMER, VIETS & BOYLE, 1999
- Gonocephalus chamaeleontinus (LAURENTI, 1768)
- Gonocephalus interruptus BOULENGER, 1885
- Gonocephalus liogaster (GÜNTHER, 1872)
- Gonocephalus megalepis (BLEEKER, 1860)
- Gonocephalus semperi (PETERS, 1867)
- Gonyosoma oxycephalum (BOIE, 1827)
- Gopherus agassizii (COOPER, 1861)
- Gopherus berlandieri (AGASSIZ, 1857)
- Gopherus evgoodei EDWARDS, KARL, VAUGHN, ROSEN, MELÉNDEZ-TORRES & MURPHY, 2016
- Gopherus flavomarginatus LEGLER, 1959
- Gopherus morafkai MURPHY, BERRY, EDWARDS, LEVITON, LATHROP & RIEDLE, 2011
- Gopherus polyphemus (DAUDIN, 1801)
- Gowidon longirostris (BOULENGER, 1883)
- Graciliscincus shonae SADLIER, 1987
- Grandidierina fierinensis (GRANDIDIER, 1869)
- Graptemys barbouri CARR & MARCHAND, 1942
- Graptemys caglei HAYNES & MCKOWN, 1974
- Graptemys ernsti LOVICH & MCCOY, 1992
- Graptemys flavimaculata CAGLE, 1954
- Graptemys geographica (LESUEUR, 1817)
- Graptemys gibbonsi LOVICH & MCCOY, 1992
- Graptemys nigrinoda CAGLE, 1954
- Graptemys oculifera (BAUR, 1890)
- Graptemys ouachitensis CAGLE, 1953
- Graptemys pearlensis ENNEN, LOVICH, KREISER, SELMAN & QUALLS, 2010
- Graptemys pseudogeographica (GRAY, 1831)
- Graptemys pulchra BAUR, 1893
- Graptemys sabinensis CAGLE, 1953
- Graptemys versa STEJNEGER, 1925
- Grayia caesar (GÜNTHER, 1863)
- Grayia ornata (BOCAGE, 1866)
- Grayia smithii (LEACH, 1818)
- Gyalopion canum (COPE, 1860)
- Gymnodactylus geckoides SPIX, 1825
- Gymnophthalmus cryptus HOOGMOED, COLE & AYARZAGUENA, 1992
- Gymnophthalmus leucomystax VANZOLINI & CARVALHO, 1991
- Gymnophthalmus lineatus (LINNAEUS, 1758)
- Gymnophthalmus pleii BOCOURT, 1881
- Gymnophthalmus speciosus (HALLOWELL, 1861)
- Gymnophthalmus underwoodi GRANT, 1958
- Gymnophthalmus vanzoi CARVALHO, 1999
- Haemodracon riebeckii (PETERS, 1882)
- Haemodracon trachyrhinus (BOULENGER, 1899)
- Hakaria simonyi (STEINDACHNER, 1899)
- Hapsidophrys lineata FISCHER, 1856
- Hapsidophrys principis (BOULENGER, 1906)
- Hapsidophrys smaragdina (SCHLEGEL, 1837)
- Hardella thurjii (GRAY, 1831)
- Harpesaurus beccarii DORIA, 1888
- Harpesaurus tricinctus (DUMÉRIL, 1851)
- Harrisoniascincus zia (INGRAM & EHMANN, 1981)
- Hebius annamensis (BOURRET, 1934)
- Hebius boulengeri (GRESSITT, 1937)
- Hebius flavifrons (BOULENGER, 1887)
- Hebius khasiensis (BOULENGER, 1890)
- Hebius venningi (WALL, 1910)
- Helicops angulatus (LINNAEUS, 1758)
- Helicops carinicaudus (WIED-NEUWIED, 1824)
- Helicops danieli AMARAL, 1938
- Heliobolus bivari MARQUES, CERÍACO, HEINICKE, CHEBOURI, CONRADIE, TOLLEY & BAUER, 2022
- Heliobolus crawfordi MARQUES, CERÍACO, HEINICKE, CHEBOURI, CONRADIE, TOLLEY & BAUER, 2022
- Heliobolus lugubris (SMITH, 1838)
- Heliobolus neumanni (TORNIER, 1905)
- Heliobolus nitidus (GÜNTHER, 1872)
- Hellenolacerta graeca (BEDRIAGA, 1886)
- Heloderma horridum (WIEGMANN, 1829)
- Hemiaspis signata (JAN, 1859)
- Hemibungarus calligaster (WIEGMANN, 1835)
- Hemicordylus capensis (SMITH, 1838)
- Hemidactylus ansorgii BOULENGER, 1901
- Hemidactylus biokoensis WAGNER, LEACHÉ & FUJITA, 2014
- Hemidactylus bowringii (GRAY, 1845)
- Hemidactylus brookii GRAY, 1845
- Hemidactylus citernii BOULENGER, 1912
- Hemidactylus frenatus DUMÉRIL & BIBRON, 1836
- Hemidactylus funaiolii LANZA, 1978
- Hemidactylus giganteus STOLICZKA, 1871
- Hemidactylus ituriensis SCHMIDT, 1919
- Hemidactylus kyaboboensis WAGNER, LEACHÉ & FUJITA, 2014
- Hemidactylus lamaensis ULLENBRUCH, GRELL & BÖHME, 2010
- Hemidactylus longicephalus BOCAGE, 1873
- Hemidactylus mabouia (MOREAU DE JONNÈS, 1818)
- Hemidactylus murrayi GLEADOW, 1887
- Hemidactylus newtoni FERREIRA, 1897
- Hemidactylus platyurus (SCHNEIDER, 1797)
- Hemidactylus pseudomuriceus HENLE & BÖHME, 2003
- Hemidactylus puccionii CALABRESI, 1927
- Hemidactylus richardsonii (GRAY, 1845)
- Hemidactylus romeshkanicus TORKI, MANTHEY & BARTS, 2011
- Hemidactylus turcicus (LINNAEUS, 1758)
- Hemiergis decresiensis (CUVIER, 1829)
- Hemiergis initialis (WERNER, 1910)
- Hemiphyllodactylus aurantiacus (BEDDOME, 1870)
- Hemiphyllodactylus changningensis GUO, ZHOU, YAN & LI, 2015
- Hemiphyllodactylus dushanensis ZHOU & LIU, 1981
- Hemiphyllodactylus ganoklonis ZUG, 2010
- Hemiphyllodactylus harterti (WERNER, 1900)
- Hemiphyllodactylus insularis TAYLOR, 1918
- Hemiphyllodactylus jinpingensis ZHOU & LIU, 1981
- Hemiphyllodactylus larutensis (BOULENGER, 1900)
- Hemiphyllodactylus longlingensis ZHOU & LIU, 1981
- Hemiphyllodactylus margarethae BRONGERSMA, 1931
- Hemiphyllodactylus montawaensis GRISMER, WOOD, THURA, ZIN, QUAH, MURDOCH, GRISMER, LI, KYAW & LWIN, 2017
- Hemiphyllodactylus tehtarik GRISMER, WOOD, ANUAR, MUIN, QUAH, MCGUIRE, BROWN, VAN TRI & THAI, 2013
- Hemiphyllodactylus typus BLEEKER, 1860
- Hemiphyllodactylus yunnanensis (BOULENGER, 1903)
- Hemitheconyx caudicinctus (DUMÉRIL, 1851)
- Hemitheconyx taylori PARKER, 1930
- Heosemys annandalii (BOULENGER, 1903)
- Heosemys depressa (ANDERSON, 1875)
- Heosemys grandis (GRAY, 1860)
- Heosemys spinosa (GRAY, 1831)
- Heremites auratus (LINNAEUS, 1758)
- Heremites septemtaeniatus (REUSS, 1834)
- Heremites vittatus (OLIVIER, 1804)
- Herpetoreas sieboldii GÜNTHER, 1860
- Herpetoreas xenura (WALL, 1907)
- Hesperoedura reticulata (BUSTARD, 1969)
- Heterodactylus imbricatus SPIX, 1825
- Heteronotia binoei (GRAY, 1845)
- Heteronotia fasciolata PEPPER, DOUGHTY, FUJITA, MORITZ & KEOGH, 2013
- Hierophis gemonensis (LAURENTI, 1768)
- Hierophis viridiflavus (LACÉPÈDE, 1789)
- Holaspis guentheri GRAY, 1863
- Holbrookia maculata GIRARD, 1851
- Holcosus amphigrammus (SMITH & LAUFE, 1945)
- Holcosus anomalus (ECHTERNACHT, 1977)
- Holcosus bridgesii COPE, 1869
- Holcosus chaitzami (STUART, 1942)
- Holcosus festivus (LICHTENSTEIN & MARTENS, 1856)
- Holcosus gaigeae (SMITH & LAUFE, 1946)
- Holcosus hartwegi (SMITH, 1940)
- Holcosus leptophrys (COPE, 1893)
- Holcosus niceforoi (DUNN, 1943)
- Holcosus orcesi (PETERS, 1964)
- Holcosus parvus (BARBOUR & NOBLE, 1915)
- Holcosus pulcher (HALLOWELL, 1861)
- Holcosus quadrilineatus (HALLOWELL, 1861)
- Holcosus septemlineatus (DUMÉRIL, 1851)
- Holcosus sinister (SMITH & LAUFE, 1946)
- Holcosus stuarti SMITH, 1940
- Holcosus thomasi (SMITH & LAUFE, 1946)
- Holcosus undulatus (WIEGMANN, 1834)
- Holodactylus africanus BOETTGER, 1893
- Holodactylus cornii SCORTECCI, 1930
- Homalophis doriae PETERS, 1871
- Homalopsis buccata (LINNAEUS, 1758)
- Homonota darwinii BOULENGER, 1885
- Homonota horrida (BURMEISTER, 1861)
- Homonota underwoodi KLUGE, 1964
- Homonota uruguayensis (VAZ-FERREIRA & SIERRA de SORIANO, 1961)
- Homopholis fasciata (BOULENGER, 1890)
- Homopholis wahlbergii (SMITH, 1849)
- Homopus areolatus (THUNBERG, 1787)
- Homopus femoralis BOULENGER, 1888
- Hoplocephalus bungaroides (SCHLEGEL, 1837)
- Hoplocercus spinosus FITZINGER, 1843
- Hoplodactylus duvaucelii (DUMÉRIL & BIBRON, 1836)
- Hyalosaurus koellikeri GÜNTHER, 1873
- Hydrelaps darwiniensis BOULENGER, 1896
- Hydromedusa maximiliani (MIKAN, 1825)
- Hydromedusa tectifera COPE, 1870
- Hydromorphus concolor PETERS, 1859
- Hydrophis anomalus (SCHMIDT, 1852)
- Hydrophis caerulescens (SHAW, 1802)
- Hydrophis donaldi UKUWELA, SANDERS & FRY, 2012
- Hydrophis platurus (LINNAEUS, 1766)
- Hydrophis sibauensis RASMUSSEN, AULIYA & BÖHME, 2001
- Hydrosaurus amboinensis (SCHLOSSER, 1768)
- Hypsiglena chlorophaea COPE, 1860
- Hypsiglena jani (DUGÈS, 1865)
- Hypsiglena ochrorhynchus COPE, 1860
- Hypsiglena slevini TANNER, 1943
- Hypsiglena torquata (GÜNTHER, 1860)
- Hypsilurus auritus (MEYER, 1874)
- Hypsilurus bruijnii (PETERS & DORIA, 1878)
- Hypsilurus geelvinkianus (PETERS & DORIA, 1878)
- Hypsilurus godeffroyi (PETERS, 1867)
- Hypsilurus macrolepis PETERS, 1872
- Hypsilurus magnus MANTHEY & DENZER, 2006
- Hypsilurus nigrigularis (MEYER, 1874)
- Hypsilurus papuensis (MACLEAY, 1877)
- Hypsilurus schultzewestrumi (URBAN, 1999)
- Hypsirhynchus ferox GÜNTHER, 1858
- Hypsiscopus plumbeus (BOIE, 1827)
- Iberolacerta monticola (BOULENGER, 1905)
- Ichnotropis bivittata BOCAGE, 1866
- Ichnotropis capensis (SMITH, 1838)
- Iguana delicatissima LAURENTI, 1768
- Iguana iguana (LINNAEUS, 1758)
- Imantodes cenchoa (LINNAEUS, 1758)
- Imantodes gemmistratus (COPE, 1861)
- Imantodes inornatus (BOULENGER, 1896)
- Incaspis amaru (ZAHER, ARREDONDO, VALENCIA, ARBELÁEZ, RODRIGUES & ALTAMIRANO-BENAVIDES, 2014)
- Incaspis simonsii (BOULENGER, 1900)
- Incaspis tachymenoides (SCHMIDT & WALKER, 1943)
- Indotestudo elongata (BLYTH, 1854)
- Indotestudo forstenii (SCHLEGEL & MÜLLER, 1844)
- Indotestudo travancorica (BOULENGER, 1907)
- Indotyphlops braminus (DAUDIN, 1803)
- Indotyphlops jerdoni (BOULENGER, 1890)
- Indotyphlops loveridgei (CONSTABLE, 1949)
- Indotyphlops meszoelyi (WALLACH, 1999)
- Indotyphlops tenuicollis (PETERS, 1864)
- Intellagama lesueurii (GRAY, 1831)
- Iphisa brunopereira MELLO, RECODER, FOUQUET, RODRIGUES & NUNES, 2023
- Iphisa elegans GRAY, 1851
- Iranolacerta brandtii (DE FILIPPI, 1863)
- Isanophis boonsongi (TAYLOR & ELBEL, 1958)
- Isopachys gyldenstolpei LÖNNBERG, 1916
- Janetaescincus veseyfitzgeraldi (PARKER, 1947)
- Japalura variegata GRAY, 1853
- Kaestlea bilineata (GRAY, 1846)
- Karusasaurus polyzonus (SMITH, 1838)
- Kentropyx altamazonica (COPE, 1875)
- Kentropyx borckiana (PETERS, 1869)
- Kentropyx calcarata SPIX, 1825
- Kentropyx paulensis (BOETTGER, 1893)
- Kentropyx pelviceps (COPE, 1868)
- Kentropyx striata (DAUDIN, 1802)
- Kentropyx vanzoi GALLAGHER & DIXON, 1980
- Kentropyx viridistriga (BOULENGER, 1894)
- Kinixys belliana GRAY, 1831
- Kinixys erosa (SCHWEIGGER, 1812)
- Kinixys homeana BELL, 1827
- Kinixys lobatsiana (POWER, 1927)
- Kinixys natalensis HEWITT, 1935
- Kinixys nogueyi (LATASTE, 1886)
- Kinixys spekii GRAY, 1863
- Kinixys zombensis HEWITT, 1931
- Kinosternon abaxillare BAUR, 1925
- Kinosternon acutum GRAY, 1831
- Kinosternon alamosae BERRY & LEGLER, 1980
- Kinosternon albogulare (DUMÉRIL & BOCOURT, 1870)
- Kinosternon angustipons LEGLER, 1965
- Kinosternon baurii (GARMAN, 1891)
- Kinosternon chimalhuaca BERRY, SEIDEL & IVERSON, 1997
- Kinosternon cora LOC-BARRAGÁN, REYES-VELASCO, WOOLRICH-PIÑA, GRÜNWALD, VENEGAS DE ANAYA, RANGEL-MENDOZA & LÓPEZ-LUNA, 2020
- Kinosternon creaseri HARTWEG, 1934
- Kinosternon cruentatum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon dunni SCHMIDT, 1947
- Kinosternon durangoense IVERSON, 1979
- Kinosternon flavescens (AGASSIZ, 1857)
- Kinosternon herrerai STEJNEGER, 1925
- Kinosternon hippocrepis GRAY, 1856
- Kinosternon hirtipes (WAGLER, 1830)
- Kinosternon integrum LE CONTE, 1854
- Kinosternon leucostomum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon oaxacae BERRY & IVERSON, 1980
- Kinosternon scorpioides (LINNAEUS, 1766)
- Kinosternon sonoriense LE CONTE, 1854
- Kinosternon steindachneri SIEBENROCK, 1906
- Kinosternon stejnegeri HARTWEG, 1938
- Kinosternon subrubrum BONNATERRE, 1789
- Kinosternon vogti LÓPEZ-LUNA, CUPUL-MAGAÑA, ESCOBEDO-GALVÁN, GONZÁLEZ-HERNÁNDEZ, CENTENERO-ALCALÁ, RANGEL-MENDOZA, RAMÍREZ-RAMÍREZ & CAZARES-HERNÁNDEZ, 2018
- Kinyongia adolfifriderici (STERNFELD, 1912)
- Kinyongia fischeri (REICHENOW, 1887)
- Kinyongia tolleyae HUGHES, KUSAMBA, BEHANGANA & GREENBAUM, 2017
- Kinyongia xenorhina (BOULENGER, 1901)
- Kolekanos plumicaudus (HAACKE, 2008)
- Lacerta agilis LINNAEUS, 1758
- Lacerta bilineata DAUDIN, 1802
- Lacerta citrovittata WERNER, 1938
- Lacerta diplochondrodes WETTSTEIN, 1952
- Lacerta media LANTZ & CYRÉN, 1920
- Lacerta pamphylica SCHMIDTLER, 1975
- Lacerta strigata EICHWALD, 1831
- Lacerta trilineata BEDRIAGA, 1886
- Lacerta viridis (LAURENTI, 1768)
- Lacertaspis chriswildi (BÖHME & SCHMITZ, 1996)
- Lacertaspis reichenowii (PETERS, 1874)
- Lacertoides pardalis SADLIER, SHEA & BAUER, 1997
- 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
- Laemanctus waltersi SCHMIDT, 1933
- Lamprolepis smaragdina (LESSON, 1829)
- Lampropeltis abnorma (BOCOURT, 1886)
- Lampropeltis californiae (BLAINVILLE, 1835)
- Lampropeltis extenuata (BROWN, 1890)
- Lampropeltis floridana (BLANCHARD, 1919)
- Lampropeltis getula (LINNAEUS, 1766)
- Lampropeltis greeri WEBB, 1961
- Lampropeltis holbrooki STEJNEGER, 1902
- Lampropeltis knoblochi TAYLOR, 1940
- Lampropeltis mexicana (GARMAN, 1884)
- Lampropeltis nigra (YARROW, 1882)
- Lampropeltis pyromelana (COPE, 1866)
- Lampropeltis splendida (BAIRD & GIRARD, 1853)
- Lampropholis amicula INGRAM & RAWLINSON, 1981
- Lampropholis coggeri INGRAM, 1991
- Lampropholis guichenoti (DUMÉRIL & BIBRON, 1839)
- Lankascincus fallax (PETERS, 1860)
- Lanthanotus borneensis STEINDACHNER, 1878
- Larutia larutensis (BOULENGER, 1900)
- Larutia seribuatensis GRISMER, LEONG & YAAKOB, 2003
- Larutia trifasciata (TWEEDIE, 1940)
- Latastia boscai BEDRIAGA, 1884
- Latastia caeruleopunctata PARKER, 1935
- Latastia johnstonii BOULENGER, 1907
- Latastia longicaudata (REUSS, 1834)
- Laticauda colubrina (SCHNEIDER, 1799)
- Laticauda laticaudata (LINNAEUS, 1758)
- Laudakia agrorensis (STOLICZKA, 1872)
- Laudakia dayana (STOLICZKA, 1871)
- Laudakia stellio (LINNAEUS, 1758)
- Laudakia tuberculata (GRAY, 1827)
- Laudakia vulgaris (SONNINI & LATREILLE, 1802)
- Leiocephalus barahonensis SCHMIDT, 1921
- Leiocephalus carinatus GRAY, 1827
- Leiocephalus varius GARMAN, 1887
- Leiocephalus vinculum COCHRAN, 1928
- Leiolepis guttata CUVIER, 1829
- Leiolopisma telfairii (DESJARDIN, 1831)
- Leiopython albertisii (PETERS & DORIA, 1878)
- Leiopython fredparkeri SCHLEIP, 2008
- Leiosaurus bellii DUMÉRIL & BIBRON, 1837
- Lepidoblepharis festae (PERACCA, 1897)
- Lepidoblepharis xanthostigma (NOBLE, 1916)
- Lepidochelys kempii GARMAN, 1880
- Lepidochelys olivacea (ESCHSCHOLTZ, 1829)
- Lepidodactylus christiani TAYLOR, 1917
- Lepidodactylus gardineri BOULENGER, 1897
- Lepidodactylus lugubris (DUMÉRIL & BIBRON, 1836)
- Lepidodactylus manni SCHMIDT, 1923
- Lepidodactylus planicaudus STEJNEGER, 1905
- Lepidophyma flavimaculatum DUMÉRIL, 1851
- Lepidophyma gaigeae MOSAUER, 1936
- Lepidophyma mayae BEZY, 1973
- Lepidophyma reticulatum TAYLOR, 1955
- Leposoma scincoides SPIX, 1825
- Leposternon infraorbitale (BERTHOLD, 1859)
- Leposternon kisteumacheri PORTO, SOARES & CARAMASCHI, 2000
- Leposternon microcephalus WAGLER, 1824
- Leposternon octostegum (DUMÉRIL, 1851)
- Leposternon polystegum (DUMÉRIL, 1851)
- Leposternon scutigerum (HEMPRICH, 1820)
- Leposternon wuchereri (PETERS, 1879)
- 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)
- Leptophis ahaetulla (LINNAEUS, 1758)
- Leptophis bocourti BOULENGER, 1898
- Leptophis bolivianus OLIVER, 1942
- Leptophis depressirostris (COPE, 1861)
- 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 urostictus (PETERS, 1873)
- Leptosiaphos aloysiisabaudiae (PERACCA, 1907)
- Leptosiaphos amieti (PERRET, 1973)
- Leptosiaphos dewittei (LOVERIDGE, 1934)
- Leptosiaphos graueri (STERNFELD, 1912)
- Leptosiaphos hackarsi (DE WITTE, 1941)
- Leptosiaphos kilimensis (STEJNEGER, 1891)
- Leptosiaphos koutoui INEICH, SCHMITZ, CHIRIO & LEBRETON, 2004
- Leptosiaphos luberoensis (DE WITTE, 1933)
- Leptosiaphos meleagris (BOULENGER, 1907)
- Lerista clara SMITH & ADAMS, 2007
- Lerista connivens STORR, 1971
- Lerista fragilis (GÜNTHER, 1876)
- Lerista jacksoni SMITH & ADAMS, 2007
- Lerista lineopunctulata (DUMÉRIL & BIBRON, 1839)
- Lerista micra SMITH & ADAMS, 2007
- Lerista miopus (GÜNTHER, 1867)
- Lerista nevinae SMITH & ADAMS, 2007
- Lerista occulta SMITH & ADAMS, 2007
- Lerista rolfei SMITH & ADAMS, 2007
- Lerista separanda STORR, 1976
- Lerista storri GREER, MCDONALD & LAWRIE, 1983
- Lerista varia STORR, 1986
- Letheobia graueri (STERNFELD, 1912)
- Leucocephalon yuwonoi (MCCORD, IVERSON & BOEADI, 1995)
- Lialis burtonis GRAY, 1834
- Liasis fuscus PETERS, 1873
- Liasis mackloti DUMÉRIL & BIBRON, 1844
- Liburnascincus coensis (MITCHELL, 1953)
- Lichanura orcutti STEJNEGER, 1889
- Lichanura trivirgata COPE, 1861
- Liodytes alleni (GARMAN, 1874)
- Liodytes rigida (SAY, 1825)
- Liolaemus alticolor BARBOUR, 1909
- Liolaemus annectens BOULENGER, 1901
- Liolaemus anqapuka HUAMANI-VALDERRAMA, QUIRÓZ, GUTIÉRREZ, AGUILAR-KIRIGIN, CHAPARRO & ABDALA, 2020
- Liolaemus araucaniensis MÜLLER & HELLMICH, 1932
- Liolaemus atacamensis MÜLLER & HELLMICH, 1933
- Liolaemus audituvelatus (NÚÑEZ & YÁÑEZ, 1983)
- Liolaemus austromendocinus CEI, 1974
- Liolaemus bellii GRAY, 1845
- Liolaemus bibronii (BELL, 1843)
- Liolaemus boulengeri KOSLOWSKY, 1898
- Liolaemus buergeri WERNER, 1907
- Liolaemus campanae HELLMICH, 1950
- Liolaemus canqueli CEI, 1975
- Liolaemus carlosgarini ESQUERRÉ, NÚÑEZ & SCOLARO, 2013
- Liolaemus casamiquelai AVILA, PEREZ, MORANDO & SITES, 2010
- Liolaemus chacabucoense NUÑEZ & SCOLARO, 2009
- Liolaemus chaltin LOBO & ESPINOZA, 2004
- Liolaemus chehuachekenk AVILA, MORANDO & SITES, 2008
- Liolaemus chiliensis (LESSON, 1829)
- Liolaemus chillanensis MÜLLER & HELLMICH, 1932
- Liolaemus coeruleus CEI & ORTIZ-ZAPATA, 1983
- Liolaemus constanzae DONOSO-BARROS, 1961
- Liolaemus crandalli AVILA, MEDINA, PEREZ, SITES & MORANDO, 2015
- Liolaemus cristiani NAVARRO, NÚÑEZ & LOYOLA, 1991
- Liolaemus curicensis MÜLLER & HELLMICH, 1938
- Liolaemus curis NÚÑEZ & LABRA, 1985
- Liolaemus cuyanus CEI & SCOLARO, 1980
- Liolaemus cyaneinotatus MARTINEZ, AVILA, PEREZ, PEREZ, SITES & MORANDO, 2011
- Liolaemus cyanogaster (DUMÉRIL & BIBRON, 1837)
- Liolaemus darwinii (BELL, 1843)
- Liolaemus dicktracyi ESPINOZA & LOBO, 2003
- Liolaemus dorbignyi KOSLOWSKY, 1898
- Liolaemus duellmani CEI, 1978
- Liolaemus elongatus KOSLOWSKY, 1896
- Liolaemus erroneus (NÚÑEZ & YÁÑEZ, 1983)
- Liolaemus fabiani YÁÑEZ & NÚÑEZ, 1983
- Liolaemus fitzgeraldi BOULENGER, 1899
- Liolaemus fitzingerii (DUMÉRIL & BIBRON, 1837)
- Liolaemus flavipiceus CEI & VIDELA, 2003
- Liolaemus foxi NÚÑEZ, NAVARRO & VELOSO, 2000
- Liolaemus frassinettii NÚÑEZ, 2007
- Liolaemus fuscus BOULENGER, 1885
- Liolaemus gallardoi CEI & SCOLARO, 1982
- Liolaemus goetschi MÜLLER & HELLMICH, 1938
- Liolaemus gracilis (BELL, 1843)
- Liolaemus gravenhorstii (GRAY, 1845)
- Liolaemus grosseorum ETHERIDGE, 2001
- Liolaemus gununakuna AVILA, MORANDO, PEREZ & SITES, 2004
- Liolaemus hajeki NÚÑEZ, PINCHEIRA-DONOSO & GARÍN, 2004
- Liolaemus hatcheri STEJNEGER, 1909
- Liolaemus hellmichi DONOSO-BARROS, 1975
- Liolaemus hermannunezi PINCHEIRA-DONOSO, SCOLARO & SCHULTE, 2007
- Liolaemus isabelae NAVARRO & NÚÑEZ, 1993
- Liolaemus jamesi (BOULENGER, 1891)
- Liolaemus josei ABDALA, 2005
- Liolaemus juanortizi YOUNG-DOWNEY & MORENO, 1992
- Liolaemus kingii (BELL, 1843)
- Liolaemus kolengh ABDALA & LOBO, 2006
- Liolaemus kriegi MÜLLER & HELLMICH, 1939
- Liolaemus lemniscatus GRAVENHORST, 1838
- Liolaemus lentus GALLARDO, 1966
- Liolaemus leopardinus MÜLLER & HELLMICH, 1932
- Liolaemus lineomaculatus BOULENGER, 1885
- Liolaemus lonquimayensis ESCOBAR-HUERTA, SANTIBÁÑEZ-TORO & ORTIZ, 2015
- Liolaemus lorenzmuelleri HELLMICH, 1950
- Liolaemus magellanicus (HOMBRON & JACQUINOT, 1853)
- Liolaemus maldonadae NAVARRO & NÚÑEZ, 1991
- Liolaemus mapuche ABDALA, 2002
- Liolaemus melaniceps PINCHEIRA-DONOSO & NÚÑEZ, 2005
- Liolaemus melanopleurus (PHILIPPI, 1860)
- Liolaemus melanops BURMEISTER, 1888
- Liolaemus monticola MÜLLER & HELLMICH, 1932
- Liolaemus morandae BREITMAN, PARRA, PÉREZ & SITES, 2011
- Liolaemus morenoi ETHERIDGE & CHRISTIE, 2003
- Liolaemus multimaculatus (DUMÉRIL & BIBRON, 1837)
- Liolaemus nazca AGUILAR-PUNTRIANO, RAMÍREZ, CASTILLO, MENDOZA, VARGAS & SITES JR, 2019
- Liolaemus neuquensis MÜLLER & HELLMICH, 1939
- Liolaemus nigriceps (PHILIPPI, 1860)
- Liolaemus nigromaculatus (WIEGMANN, 1834)
- Liolaemus nigroviridis MÜLLER & HELLMICH, 1932
- Liolaemus nitidus (WIEGMANN, 1834)
- Liolaemus ornatus KOSLOWSKY, 1898
- Liolaemus pagaburoi LOBO & ESPINOZA, 1999
- Liolaemus pantherinus PELLEGRIN, 1909
- Liolaemus patriciaiturrae NAVARRO & NÚÑEZ, 1993
- Liolaemus paulinae DONOSO-BARROS, 1961
- Liolaemus petrophilus DONOSO-BARROS & CEI, 1971
- Liolaemus pictus (DUMÉRIL & BIBRON, 1837)
- Liolaemus platei WERNER, 1898
- Liolaemus pleopholis LAURENT, 1998
- Liolaemus poconchilensis VALLADARES, 2004
- Liolaemus pseudolemniscatus LAMBOROT & ORTIZ, 1990
- Liolaemus puna LOBO & ESPINOZA, 2004
- Liolaemus puritamensis NÚÑEZ & FOX, 1989
- Liolaemus rabinoi (CEI, 1974)
- Liolaemus ramirezae LOBO & ESPINOZA, 1999
- Liolaemus reichei (WERNER, 1907)
- Liolaemus robertoi PINCHEIRA-DONOSO & NÚÑEZ, 2004
- Liolaemus rosenmanni NÚÑEZ & NAVARRO, 1992
- Liolaemus rothi KOSLOWSKY, 1898
- Liolaemus sagei ETHERIDGE & CHRISTIE, 2003
- Liolaemus sarmientoi DONOSO-BARROS, 1973
- Liolaemus schroederi MÜLLER & HELLMICH, 1938
- Liolaemus scorialis TRONCOSO-PALACIOS, DÍAZ, ESQUERRÉ & URRA, 2015
- Liolaemus senguer ABDALA, 2005
- Liolaemus septentrionalis PINCHEIRA-DONOSO & NUNEZ, 2005
- Liolaemus shehuen ABDALA, DÍAZ-GÓMEZ & JUAREZ-HEREDIA, 2012
- Liolaemus signifer (DUMÈRIL & BIBRON, 1837)
- Liolaemus silvai ORTIZ, 1989
- Liolaemus silvanae (DONOSO-BARROS & CEI, 1971)
- Liolaemus sitesi AVILA, OLAVE, PEREZ, PEREZ & MORANDO, 2013
- Liolaemus somuncurae CEI & SCOLARO, 1981
- Liolaemus stolzmanni (STEINDACHNER, 1891)
- Liolaemus tacnae (SHREVE, 1941)
- Liolaemus tandiliensis VEGA, BELLAGAMBA & LOBO, 2008
- Liolaemus telsen CEI & SCOLARO, 1999
- Liolaemus tenuis (DUMÉRIL & BIBRON, 1837)
- Liolaemus thermarum VIDELA & CEI, 1996
- Liolaemus torresi (NÚÑEZ, NAVARRO, GARÍN, PINCHEIRA-DONOSO & MERIGGIO, 2003)
- Liolaemus tregenzai PINCHEIRA-DONOSO & SCOLARO, 2007
- Liolaemus tulkas QUINTEROS, ABDALA, GÓMEZ & SCROCCHI, 2008
- Liolaemus ubaghsi ESQUERRÉ, TRONCOSO-PALACIOS, GARÍN & NÚÑEZ, 2014
- Liolaemus uniformis TRONCOSO-PALACIOS, ELORZA, PUAS & ALFARO-PARDO, 2016
- Liolaemus valdesianus HELLMICH, 1950
- Liolaemus variegatus LAURENT, 1984
- Liolaemus velosoi ORTIZ, 1987
- Liolaemus walkeri SHREVE, 1938
- Liolaemus wiegmannii (DUMÉRIL & BIBRON, 1837)
- Liolaemus xanthoviridis CEI & SCOLARO, 1980
- Liolaemus yalguaraz ABDALA, QUINTEROS & SEMHAM, 2015
- Liolaemus zabalai TRONCOSO-PALACIOS, DÍAZ, ESQUERRÉ & URRA, 2015
- Liolaemus zullyae CEI & SCOLARO, 1996
- Liopholis compressicauda (QUOY & GAIMARD, 1824)
- Liopholis guthega (DONNELLAN, HUTCHINSON, DEMPSEY & OSBORNE, 2002)
- Liopholis inornata (ROSÉN, 1905)
- Liopholis kintorei (STIRLING & ZIETZ, 1893)
- Liopholis margaretae (STORR, 1968)
- Liopholis modesta (STORR, 1968)
- Liopholis montana (DONNELLAN, HUTCHINSON, DEMPSEY & OSBORNE, 2002)
- Liopholis multiscutata (MITCHELL & BEHRNDT, 1949)
- Liopholis personata (STORR, 1968)
- Liopholis pulchra (WERNER, 1910)
- Liopholis slateri (STORR, 1968)
- Liopholis striata (STERNFELD, 1919)
- Liopholis whitii (LACÉPÈDE, 1804)
- Lioscincus steindachneri BOCAGE, 1873
- Lipinia microcerca (BOETTGER, 1901)
- Lipinia pulchella (GRAY, 1845)
- Lipinia surda (BOULENGER, 1900)
- Lipinia vittigera (BOULENGER, 1894)
- Lissemys ceylonensis (GRAY, 1856)
- Lissemys punctata (BONNATERRE, 1789)
- Lissemys scutata (PETERS, 1868)
- Lissolepis coventryi (STORR, 1978)
- Lissolepis luctuosa (PETERS, 1866)
- Lobulia elegans (BOULENGER, 1897)
- Lophocalotes ludekingi (BLEEKER, 1860)
- Lophognathus gilberti GRAY, 1842
- Lophosaurus boydii (MACLEAY, 1884)
- Lophosaurus dilophus (DUMÉRIL & BIBRON, 1837)
- Lophosaurus spinipes (DUMÉRIL, 1851)
- Loveridgea ionidesii (BATTERSBY, 1950)
- Loveridgea phylofiniens (TORNIER, 1899)
- Loxocemus bicolor COPE, 1861
- Loxopholis hexalepis (AYALA & HARRIS, 1982)
- Loxopholis parietalis (COPE, 1886)
- Loxopholis rugiceps COPE, 1869
- Loxopholis southi (RUTHVEN & GAIGE, 1924)
- Lubuya ivensii (BOCAGE, 1879)
- Lucasium bungabinna DOUGHTY & HUTCHINSON, 2008
- Lucasium damaeum (LUCAS & FROST, 1896)
- Lucasium immaculatum (STORR, 1988)
- Lucasium maini (KLUGE, 1962)
- Luperosaurus cumingii (GRAY, 1845)
- Luperosaurus joloensis TAYLOR, 1918
- Luperosaurus macgregori STEJNEGER, 1907
- Luperosaurus yasumai OTA, SENGOKU & HIKIDA, 1996
- Lycodon aulicus (LINNAEUS, 1758)
- Lycodon capucinus BOIE, 1827
- Lycodon carinatus (KUHL, 1820)
- Lycodon hypsirhinoides (THEOBALD, 1868)
- Lycodon striatus (SHAW, 1802)
- Lycodon tiwarii BISWAS & SANYAL, 1965
- Lycodon travancoricus (BEDDOME, 1870)
- Lycophidion capense (SMITH, 1831)
- Lycophidion irroratum (LEACH, 1819)
- Lycophidion ornatum PARKER, 1936
- Lycophidion semiannule PETERS, 1854
- Lycophidion semicinctum DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Lycophidion variegatum BROADLEY, 1969
- Lygisaurus curtus (BOULENGER, 1897)
- Lygisaurus foliorum DE VIS, 1884
- Lygisaurus zuma COUPER, 1993
- Lygodactylus angularis GÜNTHER, 1893
- Lygodactylus arnoulti PASTEUR, 1965
- Lygodactylus baptistai MARQUES, CERIACO, BUEHLER, BANDEIRA, JANOTA & BAUER, 2020
- Lygodactylus capensis (SMITH, 1849)
- Lygodactylus depressus SCHMIDT, 1919
- Lygodactylus heeneni DE WITTE, 1933
- Lygodactylus methueni FITZSIMONS, 1937
- Lygodactylus mirabilis (PASTEUR, 1962)
- Lygodactylus montanus PASTEUR, 1965
- Lygodactylus paurospilus (LAURENT, 1952)
- Lygodactylus picturatus (PETERS, 1870)
- Lygophis anomalus (GÜNTHER, 1858)
- Lygophis dilepis COPE, 1862
- Lygophis flavifrenatus COPE, 1862
- Lygophis meridionalis (SCHENKEL, 1901)
- Lygosoma bampfyldei BARTLETT, 1895
- Lygosoma haroldyoungi (TAYLOR, 1962)
- Lygosoma isodactylum (GÜNTHER, 1864)
- Lygosoma kinabatanganense GRISMER, QUAH, DUZULKAFLY & YAMBUN, 2018
- Lygosoma koratense SMITH, 1917
- Lygosoma peninsulare GRISMER, QUAH, DUZULKAFLY & YAMBUN, 2018
- Lygosoma quadrupes (LINNAEUS, 1766)
- Lygosoma schneideri WERNER, 1900
- Lyriocephalus scutatus (LINNAEUS, 1758)
- Mabuya dominicana GARMAN, 1887
- Mabuya mabouya (BONNATERRE, 1789)
- Macrelaps microlepidotus (GÜNTHER, 1860)
- Macrocalamus chanardi DAVID & PAUWELS, 2005
- Macrocalamus lateralis GÜNTHER, 1864
- Macrocalamus schulzi VOGEL & DAVID, 1999
- Macrocalamus tweediei LIM, 1963
- Macrocalamus vogeli DAVID & PAUWELS, 2005
- Macrochelys suwanniensis THOMAS, GRANATOSKY, BOURQUE, KRYSKO, MOLER, GAMBLE, SUAREZ, LEONE & ROMAN, 2014
- Macrochelys temminckii (TROOST, 1835)
- Macroprotodon mauritanicus GUICHENOT, 1850
- Macrovipera lebetinus (LINNAEUS, 1758)
- Madagascarophis colubrinus (SCHLEGEL, 1837)
- Madagascarophis meridionalis DOMERGUE, 1987
- Madagascarophis ocellatus DOMERGUE, 1987
- Madascincus melanopleura (GÜNTHER, 1877)
- Madascincus mouroundavae (GRANDIDIER, 1872)
- Madascincus stumpffi (BOETTGER, 1882)
- Malaclemys terrapin (SCHOEPFF, 1793)
- Malacochersus tornieri (SIEBENROCK, 1903)
- Malayemys khoratensis IHLOW, VAMBERGER, FLECKS, HARTMANN, COTA, MAKCHAI, MEEWATTANA, DAWSON, KHENG, RÖDDER & FRITZ, 2016
- Malayemys macrocephala (GRAY, 1859)
- Malayemys subtrijuga (SCHLEGEL & MÜLLER, 1845)
- Malayodracon robinsonii (BOULENGER, 1908)
- Malayopython reticulatus (SCHNEIDER, 1801)
- Malayopython timoriensis (PETERS, 1876)
- Manouria emys (SCHLEGEL & MÜLLER, 1844)
- Manouria impressa (GÜNTHER, 1882)
- Mantheyus phuwuanensis (MANTHEY & NABHITABHATA, 1991)
- Maracaiba meridensis (MIRALLES, RIVAS & SCHARGEL, 2005)
- Marisora brachypoda (TAYLOR, 1956)
- Marisora falconensis (MIJARES-URRUTIA & ARENDS, 1997)
- Marisora roatanae HEDGES & CONN, 2012
- Marisora unimarginata (COPE, 1863)
- Marisora urtica MCCRANIE, MATTHEWS & HEDGES, 2020
- Marmorosphax tricolor (BAVAY, 1869)
- Masticophis aurigulus (COPE, 1861)
- Masticophis flagellum (SHAW, 1802)
- Masticophis fuliginosus (COPE, 1895)
- Masticophis lateralis (HALLOWELL, 1853)
- Masticophis lineatus BOCOURT, 1890
- Masticophis mentovarius (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Masticophis piceus (COPE, 1892)
- Mastigodryas alternatus (BOCOURT, 1884)
- Mastigodryas dorsalis (BOCOURT, 1890)
- Mastigodryas melanolomus (COPE, 1868)
- Matoatoa brevipes (MOCQUARD, 1900)
- Matoatoa spannringi NUSSBAUM, RAXWORTHY & PRONK, 1998
- Matobosaurus validus (SMITH, 1849)
- Mauremys annamensis (SIEBENROCK, 1903)
- Mauremys caspica (GMELIN, 1774)
- Mauremys japonica (TEMMINCK & SCHLEGEL, 1835)
- Mauremys leprosa (SCHWEIGGER, 1812)
- Mauremys mutica (CANTOR, 1842)
- Mauremys nigricans (GRAY, 1834)
- Mauremys reevesii (GRAY, 1831)
- Mauremys rivulata (VALENCIENNES, 1833)
- Mauremys sinensis (GRAY, 1834)
- Mediodactylus ilamensis (FATHINIA, KARAMIANI, DARVISHNIA, HEIDARI & RASTEGAR-POUYANI, 2011)
- Mediodactylus kotschyi (STEINDACHNER, 1870)
- Mediodactylus walli (INGOLDBY, 1922)
- Medopheos edracanthus (BOCOURT, 1874)
- Melanochelys tricarinata (BLYTH, 1856)
- Melanochelys trijuga (SCHWEIGGER, 1812)
- Melanophidium bilineatum BEDDOME, 1870
- Melanophidium punctatum BEDDOME, 1871
- Melanophidium wynaudense (BEDDOME, 1863)
- Menetia greyii GRAY, 1845
- Meroles knoxii (MILNE-EDWARDS, 1829)
- Mesalina bahaeldini SEGOLI, COHEN & WERNER, 2002
- Mesalina martini (BOULENGER, 1897)
- Mesalina rubropunctata (LICHTENSTEIN, 1823)
- Mesoclemmys dahli (ZANGERL & MEDEM, 1958)
- Mesoclemmys gibba (SCHWEIGGER, 1812)
- Mesoclemmys nasuta (SCHWEIGGER, 1812)
- Mesoclemmys perplexa BOUR & ZAHER, 2005
- Mesoclemmys raniceps (GRAY, 1856)
- Mesoclemmys tuberculata (LUEDERWALDT, 1926)
- Mesoclemmys vanderhaegei (BOUR, 1973)
- Mesoclemmys wermuthi (MERTENS, 1969)
- Mesoclemmys zuliae (PRITCHARD & TREBBAU, 1984)
- Mesomycterus anosyensis (RAXWORTHY & NUSSBAUM, 1993)
- Mesomycterus frontoparietalis (BOULENGER, 1889)
- Mesomycterus gastrostictus (O'SHAUGHNESSY, 1879)
- Mesomycterus punctatus (RAXWORTHY & NUSSBAUM, 1993)
- Mesomycterus splendidus (GRANDIDIER, 1872)
- Mesoscincus altamirani (DUGÈS, 1891)
- Mesoscincus managuae (DUNN, 1933)
- Mesoscincus schwartzei (FISCHER, 1884)
- Metlapilcoatlus indomitus (SMITH & FERRARI-CASTRO, 2008)
- Metlapilcoatlus mexicanus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrelaps muelleri BOETTGER, 1880
- Microgecko helenae NIKOLSKY, 1907
- Microgecko latifi (LEVITON & ANDERSON, 1972)
- Microgecko persicus (NIKOLSKY, 1903)
- Microlophus albemarlensis (BAUR, 1890)
- Microlophus arenarius (TSCHUDI, 1845)
- Microlophus atacamensis (DONOSO-BARROS, 1960)
- Microlophus bivittatus (PETERS, 1871)
- Microlophus delanonis (BAUR, 1890)
- Microlophus duncanensis (BAUR, 1890)
- Microlophus grayii (BELL, 1843)
- Microlophus habelii (STEINDACHNER, 1876)
- Microlophus indefatigabilis (BAUR, 1890)
- Microlophus koepckeorum (MERTENS, 1956)
- Microlophus pacificus (STEINDACHNER, 1876)
- Microlophus peruvianus (LESSON, 1829)
- Microlophus tigris (TSCHUDI, 1845)
- Micrurus alleni SCHMIDT, 1936
- Micrurus altirostris (COPE, 1860)
- Micrurus apiatus (JAN, 1858)
- Micrurus baliocoryphus (COPE, 1860)
- Micrurus brasiliensis ROZE, 1967
- Micrurus browni (SCHMIDT & SMITH, 1943)
- Micrurus carvalhoi ROZE, 1967
- Micrurus decoratus (JAN, 1858)
- Micrurus diana ROZE, 1983
- Micrurus diastema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus dissoleucus COPE, 1860
- Micrurus ephippifer (COPE, 1886)
- Micrurus frontalis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus hemprichii (JAN, 1858)
- Micrurus ibiboboca (MERREM, 1820)
- Micrurus langsdorffi (WAGLER, 1824)
- Micrurus medemi ROZE, 1967
- Micrurus meridensis ROZE, 1989
- Micrurus nigrocinctus (GIRARD, 1854)
- Micrurus obscurus (JAN, 1872)
- Micrurus ornatissimus (JAN, 1858)
- Micrurus ortoni (SCHMIDT, 1953)
- Micrurus paraensis CUNHA & NASCIMENTO, 1973
- Micrurus potyguara PIRES, DA SILVA Jr, FEITOSA, PRUDENTE, PEREIRA-FILHO & ZAHER, 2014
- Micrurus pyrrhocryptus (COPE, 1862)
- Micrurus remotus ROZE, 1987
- Micrurus ruatanus (GÜNTHER, 1895)
- Micrurus spixii WAGLER, 1824
- Mimophis occultus RUANE, MYERS, LO, YUEN, WELT, JUMAN, FUTTERMAN, NUSSBAUM, SCHNEIDER, BURBRINK & RAXWORTHY, 2017
- Mixcoatlus barbouri (DUNN, 1919)
- Mixcoatlus browni (SHREVE, 1938)
- Mixcoatlus melanurus (MÜLLER, 1924)
- Mniarogekko chahoua (BAVAY, 1869)
- Mochlus productus (BOULENGER, 1909)
- Mochlus sundevallii (SMITH, 1849)
- Mokopirirakau cryptozoicus (JEWELL & LESCHEN, 2004)
- Mokopirirakau granulatus (GRAY, 1845)
- Mokopirirakau kahutarae (WHITAKER, 1985)
- Mokopirirakau nebulosus (MCCANN, 1955)
- Moloch horridus GRAY, 1841
- Monilesaurus rouxii (DUMÉRIL & BIBRON, 1837)
- Monopeltis adercae DE WITTE, 1953
- Monopeltis capensis SMITH, 1848
- Monopeltis guentheri BOULENGER, 1885
- Monopeltis jugularis PETERS, 1880
- Monopeltis leonhardi WERNER, 1910
- Monopeltis mauricei PARKER, 1935
- Monopeltis schoutedeni DE WITTE, 1933
- Monopeltis sphenorhynchus (PETERS, 1879)
- Monopeltis vanderysti DE WITTE, 1922
- Montivipera wagneri (NILSON & ANDRÉN, 1984)
- Morelia bredli (GOW, 1981)
- Morelia carinata (SMITH, 1981)
- Morelia imbricata (SMITH, 1981)
- Morelia spilota (LACÉPÈDE, 1804)
- Morelia viridis (SCHLEGEL, 1872)
- Morenia ocellata (DUMÉRIL & BIBRON, 1835)
- Morenia petersi (ANDERSON, 1879)
- Morethia lineoocellata (DUMÉRIL & BIBRON, 1839)
- Morethia storri GREER, 1981
- Myron richardsonii GRAY, 1849
- Myuchelys bellii (GRAY, 1844)
- Myuchelys georgesi (CANN, 1997)
- Myuchelys latisternum (GRAY, 1867)
- Myuchelys purvisi (WELLS & WELLINGTON, 1985)
- Nactus eboracensis (MACLEAY, 1877)
- Nactus pelagicus (GIRARD, 1858)
- Naja kaouthia LESSON, 1831
- Naja naja (LINNAEUS, 1758)
- Naja sumatrana MÜLLER, 1887
- Nangura spinosa COVACEVICH, COUPER & JAMES, 1993
- Narophis bimaculatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Narudasia festiva METHUEN & HEWITT, 1914
- Natator depressus (GARMAN, 1880)
- Natrix astreptophora (LOPEZ-SEOANE, 1885)
- Natrix helvetica (LACÉPÈDE, 1789)
- Natrix maura (LINNAEUS, 1758)
- Natrix natrix (LINNAEUS, 1758)
- Natrix tessellata (LAURENTI, 1768)
- Naultinus elegans GRAY, 1842
- Naultinus gemmeus (MCCANN, 1955)
- Naultinus grayii BELL, 1843
- Naultinus manukanus (MCCANN, 1955)
- Naultinus punctatus GRAY, 1843
- Naultinus rudis (FISCHER, 1881)
- Naultinus stellatus HUTTON, 1872
- Naultinus tuberculatus (MCCANN, 1955)
- Neelaps calonotos (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Nephrurus asper GÜNTHER, 1876
- Nephrurus sheai COUPER, 1994
- Nessia burtonii GRAY, 1839
- Neusticurus bicarinatus (LINNAEUS, 1758)
- Neusticurus rudis BOULENGER, 1900
- Nilssonia formosa (GRAY, 1869)
- Nilssonia gangetica (CUVIER, 1825)
- Nilssonia hurum (GRAY, 1831)
- Nilssonia leithii (GRAY, 1872)
- Nilssonia nigricans (ANDERSON, 1875)
- Ninia diademata BAIRD & GIRARD, 1853
- Ninia espinali MCCRANIE & WILSON, 1995
- Ninia maculata (PETERS, 1861)
- Ninia pavimentata (BOCOURT, 1883)
- Ninia sebae (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Notechis scutatus (PETERS, 1861)
- Nothopsis rugosus COPE, 1871
- Notochelys platynota (GRAY, 1834)
- Notomabuya frenata (COPE, 1863)
- Notoscincus ornatus (BROOM, 1896)
- Nucras broadleyi BRANCH, CONRADIE, VAZ-PINTO & TOLLEY, 2019
- Nucras holubi (STEINDACHNER, 1882)
- Nucras intertexta (SMITH, 1838)
- Nucras lalandii (MILNE-EDWARDS, 1829)
- Nucras livida (SMITH, 1838)
- Nucras tessellata (SMITH, 1838)
- Nyctophilopython oenpelliensis (GOW, 1977)
- Oedura bella OLIVER & DOUGHTY, 2016
- Oedura cincta DE VIS, 1888
- Oedura luritja OLIVER & MCDONALD, 2016
- Oedura marmorata GRAY, 1842
- Oedura tryoni DE VIS, 1884
- Oligodon barroni (SMITH, 1916)
- Oligodon cinereus (GÜNTHER, 1864)
- Oligodon inornatus (BOULENGER, 1914)
- Oligodon woodmasoni (SCLATER, 1891)
- Oligosoma acrinasum (HARDY, 1977)
- Oligosoma aeneum (GIRARD, 1858)
- Oligosoma alani (ROBB, 1970)
- Oligosoma albornense MELZER, HITCHMOUGH, BELL, CHAPPLE & PATTERSON, 2019
- Oligosoma auroraense MELZER, HITCHMOUGH, BELL, CHAPPLE & PATTERSON, 2019
- Oligosoma burganae CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON, 2011
- Oligosoma chloronoton (HARDY, 1977)
- Oligosoma fallai (MCCANN, 1955)
- Oligosoma grande (GRAY, 1845)
- Oligosoma hardyi (CHAPPLE, PATTERSON, BELL & DAUGHERTY, 2008)
- Oligosoma homalonotum (BOULENGER, 1906)
- Oligosoma inconspicuum (PATTERSON & DAUGHERTY, 1990)
- Oligosoma infrapunctatum (BOULENGER, 1887)
- Oligosoma judgei PATTERSON & BELL, 2009
- Oligosoma kakerakau BARR, CHAPPLE, HITCHMOUGH, PATTERSON & NGĀTIWAI TRUST BOARD, 2021
- Oligosoma levidensum (CHAPPLE, PATTERSON, BELL & DAUGHERTY, 2008)
- Oligosoma lichenigerum (O'SHAUGHNESSY, 1874)
- Oligosoma lineoocellatum (DUMÉRIL, 1851)
- Oligosoma longipes PATTERSON, 1997
- Oligosoma maccanni (HARDY, 1977)
- Oligosoma macgregori (ROBB, 1975)
- Oligosoma microlepis (PATTERSON & DAUGHERTY, 1990)
- Oligosoma moco (DUMÉRIL & BIBRON, 1839)
- Oligosoma nigriplantare (PETERS, 1874)
- Oligosoma notosaurus (PATTERSON & DAUGHERTY, 1990)
- Oligosoma oliveri (MCCANN, 1955)
- Oligosoma ornatum (GRAY, 1843)
- Oligosoma otagense (MCCANN, 1955)
- Oligosoma pikitanga BELL & PATTERSON, 2008
- Oligosoma polychroma (PATTERSON & DAUGHERTY, 1990)
- Oligosoma repens CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON, 2011
- Oligosoma robinsoni WELLS & WELLINGTON, 1985
- Oligosoma roimata PATTERSON, HITCHMOUGH & CHAPPLE, 2013
- Oligosoma salmo MELZER, HITCHMOUGH, BELL, CHAPPLE & PATTERSON, 2019
- Oligosoma smithi (GRAY, 1845)
- Oligosoma stenotis (PATTERSON & DAUGHERTY, 1994)
- Oligosoma striatum (BULLER, 1871)
- Oligosoma suteri (BOULENGER, 1906)
- Oligosoma taumakae CHAPPLE & PATTERSON, 2007
- Oligosoma tekakahu CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON, 2011
- Oligosoma toka CHAPPLE, BELL, CHAPPLE, MILLER, DAUGHERTY & PATTERSON, 2011
- Oligosoma townsi (CHAPPLE, PATTERSON, GLEESON, DAUGHERTY & RITCHIE, 2008)
- Oligosoma waimatense (MCCANN, 1955)
- Oligosoma whitakeri (HARDY, 1977)
- Oligosoma zelandicum (GRAY, 1843)
- Omanosaura jayakari (BOULENGER, 1887)
- Omoadiphas aurula KÖHLER, MCCRANIE & WILSON, 2001
- Omoadiphas cannula MCCRANIE & CRUZ-DÍAZ, 2010
- Omoadiphas texiguatensis MCCRANIE & CASTAÑEDA, 2004
- Opheodrys aestivus (LINNAEUS, 1766)
- Opheodrys carinatus GROBMAN, 1984
- Opheodrys vernalis (HARLAN, 1827)
- Ophidiocephalus taeniatus LUCAS & FROST, 1897
- Ophiodes striatus (SPIX, 1824)
- Ophiomorus blanfordii BOULENGER, 1887
- Ophiomorus punctatissimus (BIBRON & BORY DE ST. VINCENT, 1833)
- Ophiomorus raithmai ANDERSON & LEVITON, 1966
- Ophiophagus bungarus SCHLEGEL, 1837
- Ophiophagus hannah (CANTOR, 1836)
- Ophisaurus mimicus PALMER, 1987
- Ophisaurus ventralis (LINNAEUS, 1766)
- Ophisops elegans MÉNÉTRIES, 1832
- Ophryacus smaragdinus GRÜNWALD, JONES, FRANZ-CHÁVEZ & AHUMADA-CARiLLO, 2015
- Ophryacus sphenophrys (SMITH, 1960)
- Ophryacus undulatus (JAN, 1859)
- Oplurus cuvieri GRAY, 1831
- Oplurus saxicola GRANDIDIER, 1869
- Oreocryptophis porphyraceus (CANTOR, 1839)
- Oreosaurus achlyens (UZZELL, 1958)
- Oreosaurus inanis (DOAN & SCHARGEL, 2003)
- Oreosaurus luctuosus (PETERS, 1863)
- Oreosaurus mcdiarmidi (KOK & RIVAS, 2011)
- Oreosaurus shrevei (PARKER, 1935)
- Orlitia borneensis GRAY, 1873
- Orosaura nebulosylvestris (MIRALLES, RIVAS, BONILLO, SCHARGEL, BARROS, GARCÍA-PEREZ & BARRIO-AMORÓS, 2009)
- Orraya occultus (COUPER, COVACEVICH & MORITZ, 1993)
- Otocryptis wiegmanni WAGLER, 1830
- Otosaurus cumingii GRAY, 1845
- Ouroborus cataphractus (BOIE, 1828)
- Ovophis convictus (STOLICZKA, 1870)
- Ovophis makazayazaya (TAKAHASHI, 1922)
- Ovophis monticola (GÜNTHER, 1864)
- Ovophis zayuensis (JIANG, 1977)
- Oxybelis aeneus (WAGLER, 1824)
- Oxybelis brevirostris (COPE, 1861)
- Oxybelis fulgidus (DAUDIN, 1803)
- Oxybelis wilsoni VILLA & MCCRANIE, 1995
- Oxyrhabdium leporinum (GÜNTHER, 1858)
- Oxyrhopus leucomelas (WERNER, 1916)
- Oxyrhopus melanogenys (TSCHUDI, 1845)
- Oxyrhopus occipitalis (WIED-NEUWIED, 1824)
- Oxyrhopus petolarius (LINNAEUS, 1758)
- Oxyrhopus vanidicus LYNCH, 2009
- Oxyuranus scutellatus (PETERS, 1867)
- Pachycalamus brevis GÜNTHER, 1881
- Pachydactylus atorquatus BAUER & BARTS & HULBERT, 2006
- Pachydactylus capensis (SMITH, 1846)
- Pachydactylus formosus SMITH, 1849
- Pachydactylus geitje (SPARRMAN, 1778)
- Pachydactylus rugosus SMITH, 1849
- Pachydactylus werneri HEWITT, 1935
- Palea steindachneri (SIEBENROCK, 1906)
- Palleon nasus (BOULENGER, 1887)
- Pamelaescincus gardineri (BOULENGER, 1909)
- Panaspis africana (GRAY, 1845)
- Panaspis annobonensis FUHN, 1972
- Panaspis burgeoni (DE WITTE, 1933)
- Panaspis cabindae (BOCAGE, 1866)
- Panaspis helleri (LOVERIDGE, 1932)
- Panaspis megalurus (NIEDEN, 1913)
- Pangshura smithii (GRAY, 1863)
- Pangshura sylhetensis JERDON, 1870
- Pangshura tecta (GRAY, 1831)
- Pangshura tentoria (GRAY, 1834)
- Paniegekko madjo (BAUER, JONES & SADLIER, 2000)
- Panolopus curtissi (GRANT, 1951)
- Panopa carvalhoi (REBOUCAS-SPIEKER & VANZOLINI, 1990)
- Panopa croizati (HORTON, 1973)
- Pantherophis alleghaniensis (HOLBROOK, 1836)
- Pantherophis obsoletus (SAY, 1823)
- Papuascincus stanleyanus (BOULENGER, 1897)
- Paracontias brocchii MOCQUARD, 1894
- Paracontias hildebrandti (PETERS, 1880)
- Paracontias holomelas (GÜNTHER, 1877)
- Paracontias milloti ANGEL, 1949
- Paracontias rothschildi MOCQUARD, 1905
- Paradelma orientalis (GÜNTHER, 1876)
- Paragehyra petiti ANGEL, 1929
- Paralaudakia bochariensis (NIKOLSKY, 1897)
- Paralaudakia caucasia (EICHWALD, 1831)
- Pareas berdmorei THEOBALD, 1868
- Pareas macularius THEOBALD, 1868
- Pareas margaritophorus (JAN, 1866)
- Pareas yunnanensis (VOGT, 1922)
- Paroedura bastardi (MOCQUARD, 1900)
- Paroedura sanctijohannis GÜNTHER, 1879
- Paroedura stumpffi (BOETTGER, 1879)
- Paroplocephalus atriceps (STORR, 1980)
- Parvilacerta parva (BOULENGER, 1887)
- Parvoscincus steerei (STEJNEGER, 1908)
- Pedioplanis burchelli (DUMÉRIL & BIBRON, 1839)
- Pedioplanis inornata (ROUX, 1907)
- Pelochelys bibroni (OWEN, 1853)
- Pelochelys cantorii GRAY, 1864
- Pelodiscus axenaria (ZHOU, ZHANG & FANG, 1991)
- Pelodiscus maackii (BRANDT, 1858)
- Pelodiscus parviformis TANG, 1997
- Pelodiscus sinensis (WIEGMANN, 1835)
- Pelodiscus variegatus FARKAS, ZIEGLER, PHAM, ONG & FRITZ, 2019
- Pelomedusa galeata (SCHOEPFF, 1792)
- Pelomedusa gehafie (RÜPPELL, 1835)
- Pelomedusa kobe PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa neumanni PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa olivacea (SCHWEIGGER, 1812)
- Pelomedusa schweinfurthi PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa somalica PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa subrufa (BONNATERRE, 1789)
- Pelomedusa variabilis PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Peltocephalus dumerilianus (SCHWEIGGER, 1812)
- Pelturagonia borneensis (INGER, 1960)
- Pelturagonia cephalum MOCQUARD, 1890
- Pelusios adansonii (SCHWEIGGER, 1812)
- Pelusios bechuanicus FITZSIMONS, 1932
- Pelusios broadleyi BOUR, 1986
- Pelusios carinatus LAURENT, 1956
- Pelusios castaneus (SCHWEIGGER, 1812)
- Pelusios castanoides HEWITT, 1931
- Pelusios chapini LAURENT, 1965
- Pelusios gabonensis (DUMÉRIL, 1856)
- Pelusios marani BOUR, 2000
- Pelusios nanus LAURENT, 1956
- Pelusios niger (DUMÉRIL & BIBRON, 1835)
- Pelusios rhodesianus HEWITT, 1927
- Pelusios sinuatus (SMITH, 1838)
- Pelusios subniger (BONNATERRE, 1789)
- Pelusios williamsi LAURENT, 1965
- Perochirus ateles (DUMÉRIL, 1856)
- Perochirus scutellatus (FISCHER, 1882)
- Petracola ventrimaculatus (BOULENGER, 1900)
- Petrosaurus thalassinus (COPE, 1863)
- Phalotris tricolor (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phasmasaurus tillieri (INEICH & SADLIER, 1991)
- Phelsuma abbotti STEJNEGER, 1893
- Phelsuma andamanensis BLYTH, 1861
- Phelsuma borbonica MERTENS, 1966
- Phelsuma cepediana (MILBERT, 1812)
- Phelsuma comorensis BOETTGER, 1913
- Phelsuma dorsivittata MERTENS, 1964
- Phelsuma gigas LIÉNARD, 1842
- Phelsuma grandis GRAY, 1870
- Phelsuma hoeschi BERGHOF & TRAUTMANN, 2009
- Phelsuma kochi MERTENS, 1954
- Phelsuma lineata GRAY, 1842
- Phelsuma madagascariensis GRAY, 1831
- Phelsuma mutabilis (GRANDIDIER, 1869)
- Phelsuma ornata GRAY, 1825
- Phelsuma parva MEIER, 1983
- Phelsuma pasteuri MEIER, 1984
- Phelsuma punctulata MERTENS, 1970
- Phelsuma pusilla MERTENS, 1964
- Phelsuma sundbergi RENDAHL, 1939
- Philochortus hardeggeri (STEINDACHNER, 1891)
- Philochortus intermedius BOULENGER, 1917
- Philochortus phillipsi (BOULENGER, 1898)
- Philochortus spinalis (PETERS, 1874)
- Philochortus zolii SCORTECCI, 1934
- Philodryas aestiva (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Philodryas baroni BERG, 1895
- Philodryas boliviana BOULENGER, 1896
- Philodryas chamissonis (WIEGMANN, 1835)
- Philodryas cordata DONNELLY & MYERS, 1991
- Philodryas erlandi LÖNNBERG, 1902
- Philodryas livida (AMARAL, 1923)
- Philodryas mattogrossensis KOSLOWSKY, 1898
- Philodryas nattereri (STEINDACHNER, 1870)
- Philodryas olfersii (LICHTENSTEIN, 1823)
- Philodryas psammophidea GÜNTHER, 1872
- Philodryas trilineata (BURMEISTER, 1861)
- Philodryas varia (JAN, 1863)
- Philothamnus angolensis BOCAGE, 1882
- Philothamnus carinatus (ANDERSSON, 1901)
- Philothamnus girardi BOCAGE, 1893
- Philothamnus heterodermus (HALLOWELL, 1857)
- Philothamnus hoplogaster (GÜNTHER, 1863)
- Philothamnus nitidus (GÜNTHER, 1863)
- Philothamnus semivariegatus (SMITH, 1840)
- Philothamnus thomensis BOCAGE, 1882
- Phimophis guianensis (TROSCHEL, 1848)
- Phoboscincus bocourti (BROCCHI, 1876)
- Phoenicolacerta laevis (GRAY, 1838)
- Pholidobolus marianus (RUTHVEN, 1921)
- Pholidobolus montium (PETERS, 1863)
- Pholidoscelis atratus (GARMAN, 1887)
- Pholidoscelis cineraceus (BARBOUR & NOBLE, 1915)
- Pholidoscelis corax (CENSKY & PAULSON, 1992)
- Pholidoscelis corvinus (COPE, 1861)
- Pholidoscelis dorsalis (GRAY, 1838)
- Pholidoscelis erythrocephalus (SHAW, 1802)
- Pholidoscelis fuscatus (GARMAN, 1887)
- Pholidoscelis griswoldi (BARBOUR, 1916)
- Pholidoscelis major (DUMÉRIL & BIBRON, 1839)
- Pholidoscelis maynardii (GARMAN, 1888)
- Pholidoscelis plei (DUMÉRIL & BIBRON, 1839)
- Pholidoscelis pluvianotatus (GARMAN, 1887)
- Pholidoscelis taeniurus (COPE, 1862)
- Pholidoscelis wetmorei (STEJNEGER, 1913)
- Phrynocephalus axillaris BLANFORD, 1875
- Phrynocephalus clarkorum ANDERSON & LEVITON, 1967
- Phrynocephalus euptilopus ALCOCK & FINN, 1897
- Phrynocephalus forsythii ANDERSON, 1872
- Phrynocephalus guttatus (GMELIN, 1789)
- Phrynocephalus helioscopus (PALLAS, 1771)
- Phrynocephalus horvathi MEHELY, 1894
- Phrynocephalus interscapularis LICHTENSTEIN, 1856
- Phrynocephalus longicaudatus HAAS, 1957
- Phrynocephalus luteoguttatus BOULENGER, 1887
- Phrynocephalus maculatus ANDERSON, 1872
- Phrynocephalus mystaceus (PALLAS, 1776)
- Phrynocephalus ornatus BOULENGER, 1887
- Phrynocephalus persicus DE FILIPPI, 1863
- Phrynocephalus przewalskii STRAUCH, 1876
- Phrynocephalus putjatai BEDRIAGA, 1909
- Phrynocephalus raddei BOETTGER, 1888
- Phrynocephalus reticulatus EICHWALD, 1831
- Phrynocephalus saidalievi SATTOROV, 1981
- Phrynocephalus strauchi NIKOLSKY, 1899
- Phrynocephalus versicolor STRAUCH, 1876
- Phrynocephalus vindumi GOLUBEV, 1998
- Phrynocephalus vlangalii STRAUCH, 1876
- Phrynonax poecilonotus (GÜNTHER, 1858)
- Phrynops geoffroanus (SCHWEIGGER, 1812)
- Phrynops hilarii (DUMÉRIL & BIBRON, 1835)
- Phrynops tuberosus (PETERS, 1870)
- Phrynops williamsi RHODIN & MITTERMEIER, 1983
- Phrynosoma asio COPE, 1864
- Phrynosoma cerroense STEJNEGER, 1893
- Phrynosoma coronatum (BLAINVILLE, 1835)
- Phrynosoma ditmarsi STEJNEGER, 1906
- Phrynosoma douglasii (BELL, 1829)
- Phrynosoma hernandesi GIRARD, 1858
- Phrynosoma mcallii (HALLOWELL, 1852)
- Phrynosoma orbiculare (LINNAEUS, 1758)
- Phrynosoma ornatissimum GIRARD, 1858
- Phyllodactylus apricus DIXON, 1966
- Phyllodactylus baurii GARMAN, 1892
- Phyllodactylus gorii LANZA, 1973
- Phyllodactylus inaequalis COPE, 1875
- Phyllodactylus isabelae CASTRO-FRANCO & URIBE-PENA, 1992
- Phyllodactylus kofordi DIXON & HUEY, 1970
- Phyllodactylus lanei SMITH, 1935
- Phyllodactylus lupitae CASTRO-FRANCO & URIBE-PENA, 1992
- Phyllodactylus magnus TAYLOR, 1942
- Phyllodactylus microphyllus COPE, 1875
- Phyllodactylus nocticolus DIXON, 1964
- Phyllodactylus palmeus DIXON, 1968
- Phyllodactylus paralepis MCCRANIE & HEDGES, 2013
- Phyllodactylus pulcher GRAY, 1828
- Phyllodactylus rupinus DIXON, 1964
- Phyllodactylus santacruzensis DIXON, 1966
- Phyllodactylus saxatilis DIXON, 1964
- Phyllodactylus tuberculosus WIEGMANN, 1834
- Phyllodactylus unctus (COPE, 1863)
- Phyllodactylus ventralis O'SHAUGHNESSY, 1875
- Phyllodactylus xanti COPE, 1863
- Phyllopezus pollicaris (SPIX, 1825)
- Phyllorhynchus browni STEJNEGER, 1890
- Phyllorhynchus decurtatus (COPE, 1868)
- Phyllurus amnicola COUPER, SCHNEIDER, HOSKIN & COVACEVICH, 2000
- Phyllurus kabikabi COUPER, HAMLEY & HOSKIN, 2008
- Phyllurus platurus (SHAW, 1790)
- Phymaturus castillensis SCOLARO & PINCHEIRA-DONOSO, 2010
- Phymaturus felixi LOBO, ABDALA & VALDECANTOS, 2010
- Phymaturus fiambala LOBO, HIBBARD, QUIPILDOR & VALDECANTOS, 2019
- Phymaturus indistinctus CEI & CASTRO, 1973
- Phymaturus laurenti LOBO, ABDALA & VALDECANTOS, 2010
- Phymaturus loboi TRONCOSO-PALACIOS, FERRI-YÁÑEZ, LASPIUR & AGUILAR, 2019
- Phymaturus mallimaccii CEI, 1980
- Phymaturus maulense NUÑEZ, VELOSO, ESPEJO, VELOSO, CORTES & ARAYA, 2010
- Phymaturus palluma (MOLINA, 1782)
- Phymaturus patagonicus KOSLOWSKY, 1898
- Phymaturus roigorum LOBO & ABDALA, 2007
- Phymaturus spurcus BARBOUR, 1921
- Phymaturus vociferator PINCHEIRA-DONOSO, 2004
- Physignathus cocincinus CUVIER, 1829
- Pinoyscincus jagori (PETERS, 1864)
- Pituophis catenifer (BLAINVILLE, 1835)
- Pituophis insulanus KLAUBER, 1946
- Placosoma cordylinum TSCHUDI, 1847
- Placosoma glabellum (PETERS, 1870)
- Plagiopholis delacouri ANGEL, 1929
- Platemys platycephala (SCHNEIDER, 1792)
- Platyceps bholanathi (SHARMA, 1976)
- Platyceps collaris (MÜLLER, 1878)
- Platyceps ladacensis (ANDERSON, 1871)
- Platyceps rhodorachis (JAN, 1863)
- Platyceps saharicus SCHÄTTI & MCCARTHY, 2004
- Platyceps vittacaudatus (BLYTH, 1854)
- Platyplectrurus madurensis BEDDOME, 1877
- Platyplectrurus trilineatus (BEDDOME, 1867)
- Platysaurus torquatus PETERS, 1879
- Platysternon megacephalum GRAY, 1831
- Platysternon peguense GRAY, 1870
- Plectrurus guentheri BEDDOME, 1863
- Plestiodon barbouri (VAN DENBURGH, 1912)
- Plestiodon bilineatus (TANNER, 1958)
- Plestiodon chinensis (GRAY, 1839)
- Plestiodon copei (TAYLOR, 1933)
- Plestiodon elegans (BOULENGER, 1887)
- Plestiodon lagunensis (VAN DENBURGH, 1895)
- Plestiodon lynxe (WIEGMANN, 1834)
- Plestiodon marginatus HALLOWELL, 1861
- Plestiodon parvulus (TAYLOR, 1933)
- Plestiodon skiltonianus BAIRD & GIRARD, 1852
- Plestiodon sumichrasti (COPE, 1867)
- Pletholax gracilis (COPE, 1864)
- Plica caribeana MURPHY & JOWERS, 2013
- Plica lumaria DONNELLY & MYERS, 1991
- Plica plica (LINNAEUS, 1758)
- Plica umbra (LINNAEUS, 1758)
- Pliocercus elapoides COPE, 1860
- Pliocercus euryzonus COPE, 1862
- Podarcis erhardii (BEDRIAGA, 1882)
- Podarcis filfolensis (BEDRIAGA, 1876)
- Podarcis melisellensis (BRAUN, 1877)
- Podarcis muralis (LAURENTI, 1768)
- Podarcis peloponnesiacus (BIBRON & BORY, 1833)
- Podarcis siculus (RAFINESQUE-SCHMALTZ, 1810)
- Podarcis thais (BUCHHOLZ, 1960)
- Podocnemis erythrocephala (SPIX, 1824)
- Podocnemis expansa (SCHWEIGGER, 1812)
- Podocnemis lewyana DUMÉRIL, 1852
- Podocnemis sextuberculata CORNALIA, 1849
- Podocnemis unifilis TROSCHEL, 1848
- Podocnemis vogli MÜLLER, 1935
- Pogona barbata (CUVIER, 1829)
- Pogona henrylawsoni WELLS & WELLINGTON, 1985
- Pogona minor (STERNFELD, 1919)
- Pogona nullarbor (BADHAM, 1976)
- Polychrus gutturosus BERTHOLD, 1846
- Polychrus marmoratus (LINNAEUS, 1758)
- Poromera fordii (HALLOWELL, 1857)
- Porthidium nasutum (BOCOURT, 1868)
- Porthidium ophryomegas (BOCOURT, 1868)
- Potamites ecpleopus (COPE, 1875)
- Potamites juruazensis (AVILA-PIRES & VITT, 1998)
- Potamites ocellatus (SINITSIN, 1930)
- Potamites strangulatus (COPE, 1868)
- Potamites trachodus (UZZELL, 1966)
- Praeteropus brevicollis (GREER & COGGER, 1985)
- Praeteropus gowi (GREER & COGGER, 1985)
- Prasinohaema flavipes (PARKER, 1936)
- Pristidactylus fasciatus (D’ORBIGNY & BIBRON, 1837)
- Pristidactylus nigroiugulus CEI, SCOLARO & VIDELA, 2001
- Pristurus collaris (STEINDACHNER, 1867)
- Pristurus crucifer (VALENCIENNES, 1861)
- Pristurus flavipunctatus RÜPPELL, 1835
- Pristurus guweirensis HAAS, 1943
- Pristurus masirahensis TAMAR, MITSI, SIMÓ-RIUDALBAS, TEJERO-CICUÉNDEZ, AL-SARIRI & CARRANZA, 2019
- Pristurus rupestris BLANFORD, 1874
- Proablepharus reginae (GLAUERT, 1960)
- Proablepharus tenuis (BROOM, 1896)
- Proctoporus guentheri (BOETTGER, 1891)
- Proctoporus laudahnae KÖHLER & LEHR, 2004
- Proctoporus xestus (UZZELL, 1969)
- Proscelotes eggeli (TORNIER, 1902)
- Prosymna meleagris (REINHARDT, 1843)
- Protobothrops cornutus (SMITH, 1930)
- Protobothrops flavoviridis (HALLOWELL, 1861)
- Protobothrops jerdonii (GÜNTHER, 1875)
- Protobothrops mucrosquamatus (CANTOR, 1839)
- Protobothrops tokarensis (NAGAI, 1928)
- Protobothrops xiangchengensis (ZHAO, JIANG & HUANG, 1978)
- Psammobates geometricus (LINNAEUS, 1758)
- Psammobates oculifer (KUHL, 1820)
- Psammobates tentorius (BELL, 1828)
- Psammodromus hispanicus FITZINGER, 1826
- Psammodynastes pictus GÜNTHER, 1858
- Psammodynastes pulverulentus (BOIE, 1827)
- Psammophilus blanfordanus (STOLICZKA, 1871)
- Psammophilus dorsalis (GRAY, 1831)
- Psammophis brevirostris PETERS, 1881
- Psammophis leightoni BOULENGER, 1902
- Psammophis lineolatus (BRANDT, 1838)
- Psammophis sibilans (LINNAEUS, 1758)
- Pseudablabes agassizii (JAN, 1863)
- Pseudablabes arnaldoi (AMARAL, 1932)
- Pseudablabes patagoniensis (GIRARD, 1858)
- Pseudagkistrodon rudis (BOULENGER, 1906)
- Pseudechis porphyriacus (SHAW, 1794)
- Pseudelaphe flavirufa (COPE, 1867)
- Pseudemoia baudini (GREER, 1982)
- Pseudemoia cryodroma HUTCHINSON & DONNELLAN, 1992
- Pseudemoia entrecasteauxii (DUMÉRIL & BIBRON, 1839)
- Pseudemoia pagenstecheri (LINDHOLM, 1901)
- Pseudemoia rawlinsoni (HUTCHINSON & DONNELLAN, 1988)
- Pseudemoia spenceri (LUCAS & FROST, 1894)
- Pseudemydura umbrina SIEBENROCK, 1901
- Pseudemys alabamensis BAUR, 1893
- Pseudemys concinna (LE CONTE, 1830)
- Pseudemys floridana (LE CONTE, 1830)
- Pseudemys gorzugi WARD, 1984
- Pseudemys nelsoni CARR, 1938
- Pseudemys peninsularis CARR, 1938
- Pseudemys rubriventris (LE CONTE, 1830)
- Pseudemys texana BAUR, 1893
- Pseuderemias mucronata (BLANFORD, 1870)
- Pseuderemias savagei (GANS, LAURENT & PANDIT, 1965)
- Pseuderemias septemstriata (PARKER, 1942)
- Pseuderemias striata (PETERS, 1874)
- Pseudoacontias menamainty ANDREONE & GREER, 2002
- Pseudoboa coronata SCHNEIDER, 1801
- Pseudocalotes brevipes (WERNER, 1904)
- Pseudocalotes kakhienensis (ANDERSON, 1879)
- Pseudocalotes microlepis (BOULENGER, 1888)
- Pseudocalotes poilani (BOURRET, 1939)
- Pseudocalotes tympanistriga (GRAY, 1831)
- Pseudocalotes ziegleri HALLERMANN, TRUONG, ORLOV & ANANJEVA, 2010
- Pseudoceramodactylus khobarensis HAAS, 1957
- Pseudocerastes persicus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudocophotis sumatrana (HUBRECHT, 1879)
- Pseudocordylus microlepidotus (CUVIER, 1829)
- Pseudoferania polylepis (FISCHER, 1886)
- Pseudogekko brevipes (BOETTGER, 1897)
- Pseudogekko smaragdinus (TAYLOR, 1922)
- Pseudogonatodes guianensis PARKER, 1935
- Pseudogonatodes lunulatus (ROUX, 1927)
- Pseudoindotyphlops exiguus (JAN, 1864)
- Pseudonaja affinis GÜNTHER, 1872
- Pseudonaja aspidorhyncha (MCCOY, 1879)
- Pseudonaja guttata (PARKER, 1926)
- Pseudonaja inframacula (WAITE, 1925)
- Pseudonaja ingrami (BOULENGER, 1908)
- 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)
- Pseudothecadactylus australis (GÜNTHER, 1877)
- Pseudothecadactylus cavaticus COGGER, 1975
- Pseudothecadactylus lindneri COGGER, 1975
- Pseudotrapelus aqabensis MELNIKOV, NAZAROV, ANANJEVA & DISI, 2012
- Pseudotrapelus neumanni (TORNIER, 1905)
- Pseudotrapelus sinaitus (HEYDEN, 1827)
- Ptenopus garrulus (SMITH, 1849)
- Ptenopus maculatus (GRAY, 1866)
- Ptyas fusca (GÜNTHER, 1858)
- Ptyas korros (SCHLEGEL, 1837)
- Ptyas mucosa (LINNAEUS, 1758)
- Ptyctolaemus gularis (PETERS, 1864)
- Ptyodactylus bischoffsheimi BOUTAN, 1893
- Ptyodactylus guttatus HEYDEN, 1827
- Ptyodactylus hasselquistii (DONNDORFF, 1798)
- Ptyodactylus puiseuxi BOUTAN, 1893
- Ptyodactylus siphonorhina ANDERSON, 1896
- Pygmaeascincus timlowi (INGRAM, 1977)
- Pygomeles braconnieri GRANDIDIER, 1867
- Pygomeles petteri PASTEUR & PAULIAN, 1962
- Pygomeles trivittatus BOULENGER, 1896
- Pygopus lepidopodus (LACÉPÈDE, 1804)
- Pygopus schraderi BOULENGER, 1913
- Python anchietae BOCAGE, 1887
- Python bivittatus KUHL, 1820
- Python breitensteini STEINDACHNER, 1881
- Python brongersmai STULL, 1938
- Python curtus SCHLEGEL, 1872
- Python molurus (LINNAEUS, 1758)
- Pyxis arachnoides BELL, 1827
- Pyxis planicauda (GRANDIDIER, 1867)
- Quedenfeldtia trachyblepharus (BOETTGER, 1874)
- Rafetus euphraticus (DAUDIN, 1801)
- Rafetus swinhoei (GRAY, 1873)
- Ramigekko swartbergensis (HAACKE, 1996)
- Ramphotyphlops acuticaudus (PETERS, 1878)
- Ramphotyphlops australis GRAY, 1845
- Ramphotyphlops waitii (BOULENGER, 1895)
- Ranacephala hogei (MERTENS, 1967)
- Rankinia diemensis (GRAY, 1841)
- Regina grahamii BAIRD & GIRARD, 1853
- Regina septemvittata (SAY, 1825)
- Rhabdophis angeli (BOURRET, 1934)
- Rhabdophis chrysargos (SCHLEGEL, 1837)
- Rhabdophis flaviceps (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Rhabdophis leonardi (WALL, 1923)
- Rhabdophis nigrocinctus (BLYTH, 1856)
- Rhabdophis nuchalis (BOULENGER, 1891)
- Rhabdophis pentasupralabialis JIANG & ZHAO, 1983
- Rhabdophis subminiatus (SCHLEGEL, 1837)
- Rhacodactylus leachianus (CUVIER, 1829)
- Rhadinaea decorata (GÜNTHER, 1858)
- Rhadinella anachoreta (SMITH & CAMPBELL, 1994)
- Rhadinella godmani (GÜNTHER, 1865)
- Rhadinella kinkelini (BOETTGER, 1898)
- Rhadinella lachrymans (COPE, 1870)
- Rhadinella montecristi (MERTENS, 1952)
- Rhadinella pegosalyta (MCCRANIE, 2006)
- Rhadinella tolpanorum (HOLM & CRUZ-DÍAZ, 1994)
- Rhampholeon boulengeri STEINDACHNER, 1911
- Rhampholeon marshalli BOULENGER, 1906
- Rhampholeon spectrum (BUCHHOLZ, 1874)
- Rhampholeon uluguruensis TILBURY & EMMRICH, 1996
- Rheodytes leukops LEGLER, 1980
- Rheosaurus sulcarostrum (DONNELLY, MACCULLOCH, UGARTE & KIZIRIAN, 2006)
- Rhinemys rufipes (SPIX, 1824)
- Rhineura floridana (BAIRD, 1858)
- Rhinobothryum bovallii (ANDERSSON, 1916)
- Rhinocheilus lecontei BAIRD & GIRARD, 1853
- Rhinoclemmys annulata (GRAY, 1860)
- Rhinoclemmys areolata (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Rhinoclemmys diademata (MERTENS, 1954)
- Rhinoclemmys funerea (COPE, 1875)
- Rhinoclemmys melanosterna (GRAY, 1861)
- Rhinoclemmys nasuta (BOULENGER, 1902)
- Rhinoclemmys pulcherrima (GRAY, 1855)
- Rhinoclemmys punctularia (DAUDIN, 1801)
- Rhinoclemmys rubida (COPE, 1870)
- Rhinogekko femoralis (SMITH, 1933)
- Rhinogekko misonnei DE WITTE, 1973
- Rhinophis fergusonianus BOULENGER, 1896
- Rhinophis sanguineus BEDDOME, 1863
- Rhinoplocephalus bicolor MÜLLER, 1885
- Rhoptropella ocellata (BOULENGER, 1885)
- Rhoptropus afer PETERS, 1869
- Rhynchoedura angusta PEPPER, DOUGHTY, HUTCHINSON & KEOGH, 2011
- Rhynchoedura eyrensis PEPPER, DOUGHTY, HUTCHINSON & KEOGH, 2011
- Rhynchoedura mentalis PEPPER, DOUGHTY, HUTCHINSON & KEOGH, 2011
- Rhynchoedura ormsbyi WELLS & WELLINGTON, 1985
- Rhynchoedura ornata GÜNTHER, 1867
- Rhynchoedura sexapora PEPPER, DOUGHTY, HUTCHINSON & KEOGH, 2011
- Riama anatoloros (KIZIRIAN, 1996)
- Riama balneator (KIZIRIAN, 1996)
- Riama cashcaensis (KIZIRIAN & COLOMA, 1991)
- Riama colomaromani (KIZIRIAN, 1996)
- Riama columbiana (ANDERSSON, 1914)
- Riama labionis (KIZIRIAN, 1996)
- Riama meleagris (BOULENGER, 1885)
- Riama orcesi (KIZIRIAN, 1995)
- Riama raneyi (KIZIRIAN, 1996)
- Riama simotera (O'SHAUGHNESSY, 1879)
- Riama stigmatoral (KIZIRIAN, 1996)
- Riama striata (PETERS, 1863)
- Riama unicolor GRAY, 1858
- Rieppeleon kerstenii (PETERS, 1868)
- Riopa lineolata STOLICZKA, 1870
- Riopa popae SHREVE, 1940
- Riopa punctata (LINNAEUS, 1758)
- Riopa vosmaerii (GRAY, 1839)
- Ristella rurkii GRAY, 1839
- Saara asmussi (STRAUCH, 1863)
- Saara hardwickii (GRAY, 1827)
- Saara loricata (BLANFORD, 1874)
- Sacalia bealei (GRAY, 1831)
- Sacalia quadriocellata (SIEBENROCK, 1903)
- Sahyadriophis beddomei (GÜNTHER, 1864)
- Saiphos equalis (GRAY, 1825)
- Saiphos frontalis (DE VIS, 1888)
- Saiphos naufragus (COUPER, COVACEVICH, MARSTERSON & SHEA, 1996)
- Saiphos ophioscincus (BOULENGER, 1887)
- Saiphos reticulatus (GÜNTHER, 1873)
- Salea anamallayana (BEDDOME, 1878)
- Salea horsfieldii GRAY, 1845
- Saltuarius cornutus (OGILBY, 1892)
- Saltuarius kateae COUPER, SADLIER, SHEA & WORTHINGTON-WILMER, 2008
- Saltuarius moritzi COUPER, SADLIER, SHEA & WORTHINGTON-WILMER, 2008
- Salvadora bairdi JAN, 1860
- Salvadora deserticola SCHMIDT, 1940
- Salvadora grahamiae BAIRD & GIRARD, 1853
- Salvadora hexalepis (COPE, 1867)
- Salvadora intermedia HARTWEG, 1940
- Salvadora lineata SCHMIDT, 1940
- Salvadora mexicana (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Salvator duseni (LÖNNBERG, 1910)
- Salvator merianae DUMÉRIL & BIBRON, 1839
- Salvator rufescens (GÜNTHER, 1871)
- Saphenophis boursieri (JAN, 1867)
- Saproscincus challengeri (BOULENGER, 1887)
- Saproscincus mustelinus (O'SHAUGHNESSY, 1874)
- Saproscincus rosei WELLS & WELLINGTON, 1985
- Saproscincus spectabilis (DE VIS, 1888)
- Sarada deccanensis (JERDON, 1870)
- Saurodactylus mauritanicus (DUMÉRIL & BIBRON, 1836)
- Sauromalus ater DUMÉRIL, 1856
- Sauromalus hispidus STEJNEGER, 1891
- Sauromalus klauberi SHAW, 1941
- Sauromalus slevini VAN DENBURGH, 1922
- Sauromalus varius DICKERSON, 1919
- Scaphiodontophis annulatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Scaphiodontophis venustissimus (GÜNTHER, 1894)
- Scelarcis perspicillata (DUMÉRIL & BIBRON, 1839)
- Sceloporus bimaculosus PHELAN & BRATTSTROM, 1955
- Sceloporus cowlesi LOWE & NORRIS, 1956
- Sceloporus graciosus BAIRD & GIRARD, 1852
- Sceloporus lineatulus DICKERSON, 1919
- Sceloporus magister HALLOWELL, 1854
- Sceloporus melanorhinus BOCOURT, 1876
- Sceloporus mucronatus COPE, 1885
- Sceloporus scalaris WIEGMANN, 1828
- Sceloporus schmidti JONES, 1927
- Sceloporus smaragdinus BOCOURT, 1873
- Sceloporus squamosus BOCOURT, 1874
- Sceloporus torquatus WIEGMANN, 1828
- Sceloporus undulatus (BOSC & DAUDIN, 1801)
- Sceloporus utiformis COPE, 1864
- Sceloporus vandenburgianus COPE, 1896
- Sceloporus variabilis WIEGMANN, 1834
- Sceloporus zosteromus COPE, 1863
- Scelotes bipes (LINNAEUS, 1766)
- Scelotes uluguruensis BARBOUR & LOVERIDGE, 1928
- Scincella assata (COPE, 1864)
- Scincella cherriei (COPE, 1893)
- Scincella darevskii NGUYEN, ANANJEVA, ORLOV, RYBALTOVSKY & BÖHME, 2010
- Scincella devorator (DAREVSKY, ORLOV & CUC, 2004)
- Scincella incerta (STUART, 1940)
- Scincella lateralis (SAY, 1822)
- Scincella macrotis (STEINDACHNER, 1867)
- Scincella melanosticta (BOULENGER, 1888)
- Scincella rufocaudata (DAREVSKY & NGUYEN VAN SANG, 1983)
- Scincopus fasciatus (PETERS, 1864)
- Scincus scincus (LINNAEUS, 1758)
- Scolecophis atrocinctus (SCHLEGEL, 1837)
- Seminatrix pygaea (COPE, 1871)
- Senticolis triaspis (COPE, 1866)
- Sepsina angolensis BOCAGE, 1866
- Shinisaurus crocodilurus AHL, 1930
- Sibon annulatus (GÜNTHER, 1872)
- Sibon anthracops (COPE, 1868)
- Sibon carri (SHREVE, 1951)
- Sibon dimidiatus (GÜNTHER, 1872)
- Sibon lamari SOLÓRZANO, 2001
- Sibon longifrenis (STEJNEGER, 1909)
- Sibon manzanaresi MCCRANIE, 2007
- Sibon miskitus MCCRANIE, 2006
- Sibon nebulatus (LINNAEUS, 1758)
- Sibynophis chinensis (GÜNTHER, 1889)
- Sibynophis collaris (GRAY, 1853)
- Sibynophis grahami (BOULENGER, 1904)
- Siderolamprus bivittatus (BOULENGER, 1895)
- Siderolamprus montanus (SCHMIDT, 1933)
- Siderolamprus scansorius (MCCRANIE & WILSON, 1996)
- Siebenrockiella crassicollis (GRAY, 1831)
- Sigaloseps deplanchei (BAVAY, 1869)
- Silvascincus murrayi (BOULENGER, 1887)
- Simalia amethistina (SCHNEIDER, 1801)
- Simalia boeleni (BRONGERSMA, 1953)
- Simalia kinghorni (STULL, 1933)
- Simalia tracyae (HARVEY, BARKER, AMMERMAN & CHIPPINDALE, 2000)
- Simiscincus aurantiacus SADLIER & BAUER, 1997
- Simoselaps anomalus (STERNFELD, 1919)
- Simoselaps bertholdi (JAN, 1859)
- Simoselaps littoralis (STORR, 1968)
- Sinomicrurus kelloggi (POPE, 1928)
- Sinomicrurus macclellandi (REINHARDT, 1844)
- Sinomicrurus sauteri (STEINDACHNER, 1913)
- Siphlophis cervinus (LAURENTI, 1768)
- Siphlophis compressus (DAUDIN, 1803)
- Sitana ponticeriana CUVIER, 1829
- Smaug giganteus (SMITH, 1844)
- Smithophis bicolor (BLYTH, 1855)
- Sonora annulata (BAIRD, 1859)
- Sonora cincta (COPE, 1861)
- Sonora fasciata (COPE, 1892)
- Sonora mutabilis STICKEL, 1943
- Sonora occipitalis (HALLOWELL, 1854)
- Sonora punctatissima (VAN DENBURGH & SLEVIN, 1921)
- Sonora savagei (CLIFF, 1954)
- Sonora straminea (COPE, 1860)
- Spalerosophis atriceps (FISCHER, 1885)
- Spalerosophis diadema (SCHLEGEL, 1837)
- Sphaerodactylus alphus MCCRANIE & HEDGES, 2013
- Sphaerodactylus armasi SCHWARTZ & GARRIDO, 1974
- Sphaerodactylus armstrongi NOBLE, 1933
- Sphaerodactylus asterulus SCHWARTZ & GRAHAM, 1980
- Sphaerodactylus bromeliarum PETERS & SCHWARTZ, 1977
- Sphaerodactylus cinereus WAGLER, 1830
- Sphaerodactylus continentalis WERNER, 1896
- Sphaerodactylus dunni SCHMIDT, 1936
- Sphaerodactylus exsul BARBOUR, 1914
- Sphaerodactylus fantasticus DUMÉRIL & BIBRON, 1836
- Sphaerodactylus glaucus COPE, 1866
- Sphaerodactylus guanajae MCCRANIE & HEDGES, 2012
- Sphaerodactylus heliconiae HARRIS, 1982
- Sphaerodactylus klauberi GRANT, 1931
- Sphaerodactylus leonardovaldesi MCCRANIE & HEDGES, 2012
- Sphaerodactylus mariguanae COCHRAN, 1934
- Sphaerodactylus millepunctatus (HALLOWELL, 1861)
- Sphaerodactylus notatus (BAIRD, 1859)
- Sphaerodactylus ocoae SCHWARTZ, 1977
- Sphaerodactylus poindexteri MCCRANIE & HEDGES, 2013
- Sphaerodactylus rosaurae PARKER, 1940
- Sphaerodactylus sputator (SPARRMAN, 1784)
- Sphenodon punctatus (GRAY, 1842)
- Sphenomorphus acutus (PETERS, 1864)
- Sphenomorphus annamiticus (BOETTGER, 1901)
- Sphenomorphus buenloicus DAREVSKY & NGUYEN VAN SANG, 1983
- Sphenomorphus indicus (GRAY, 1853)
- Sphenomorphus maculatus (BLYTH, 1853)
- Sphenomorphus melanopogon (DUMÉRIL & BIBRON, 1839)
- Sphenomorphus nigrolineatus (BOULENGER, 1897)
- Sphenomorphus praesignis (BOULENGER, 1900)
- Sphenomorphus preylangensis GRISMER, WOOD, QUAH, ANUAR, POYARKOV, THY, ORLOV, THAMMACHOTI & SEIHA, 2019
- Sphenomorphus rarus MYERS & DONNELLY, 1991
- Sphenomorphus sabanus INGER, 1958
- Sphenomorphus stellatus (BOULENGER, 1900)
- Sphenomorphus striatafaucium QUAH & GRISMER, 2025
- Spilotes pullatus (LINNAEUS, 1758)
- Spondylurus caicosae HEDGES & CONN, 2012
- Spondylurus powelli HEDGES & CONN, 2012
- Spondylurus sloanii (DAUDIN, 1803)
- Spondylurus turksae HEDGES & CONN, 2012
- Staurotypus salvinii GRAY, 1864
- Staurotypus triporcatus (WIEGMANN, 1828)
- Stenocercus aculeatus (O'SHAUGHNESSY, 1879)
- Stenocercus boettgeri BOULENGER, 1911
- Stenocercus iridescens (GÜNTHER, 1859)
- Stenocercus roseiventris D’ORBIGNY in DUMÉRIL & BIBRON, 1837
- Stenocercus simonsii BOULENGER, 1899
- Stenodactylus leptocosymbotes LEVITON & ANDERSON, 1967
- Stenodactylus stenurus WERNER, 1899
- Stenodactylus sthenodactylus (LICHTENSTEIN, 1823)
- Stenodactylus yemenensis ARNOLD, 1980
- Stenorrhina degenhardtii (BERTHOLD, 1846)
- Stenorrhina freminvillei (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Sternotherus carinatus (GRAY, 1856)
- Sternotherus depressus TINKLE & WEBB, 1955
- Sternotherus minor (AGASSIZ, 1857)
- Sternotherus odoratus (LATREILLE, 1802)
- Sternotherus peltifer SMITH & GLASS, 1947
- Stigmochelys pardalis (BELL, 1828)
- Storeria dekayi (HOLBROOK, 1839)
- Strobilurus torquatus WIEGMANN, 1834
- Strophurus elderi (STIRLING & ZIETZ, 1893)
- Strophurus krisalys SADLIER, 2005
- Strophurus rankini (STORR, 1979)
- Strophurus robinsoni (SMITH, 1995)
- Strophurus strophurus (DUMÉRIL & BIBRON, 1836)
- Strophurus williamsi (KLUGE, 1963)
- Subdoluseps bowringii (GÜNTHER, 1864)
- Subdoluseps frontoparietalis (TAYLOR, 1962)
- Subdoluseps herberti (SMITH, 1916)
- Suta dwyeri (WORRELL, 1956)
- Suta fasciata (ROSÉN, 1905)
- Suta flagellum (MCCOY, 1878)
- Suta gouldii (GRAY, 1841)
- Suta monachus (STORR, 1964)
- Suta nigriceps (GÜNTHER, 1863)
- Suta ordensis (STORR, 1984)
- Suta punctata (BOULENGER, 1896)
- Suta spectabilis KREFFT, 1869
- Suta suta (PETERS, 1863)
- Tachygyia microlepis (DUMÉRIL & BIBRON, 1839)
- Taeniophallus brevirostris (PETERS, 1863)
- Takydromus sexlineatus DAUDIN, 1802
- Tantilla armillata COPE, 1875
- Tantilla atriceps (GÜNTHER, 1895)
- Tantilla bocourti (GÜNTHER, 1895)
- Tantilla briggsi SAVITZKY & SMITH, 1971
- Tantilla calamarina COPE, 1866
- Tantilla cascadae WILSON & MEYER, 1981
- Tantilla ceboruca CANSECO-MÁRQUEZ, SMITH, PONCE-CAMPOS, FLORES-VILLELA & CAMPBELL, 2007
- Tantilla coronadoi HARTWEG, 1944
- Tantilla coronata BAIRD & GIRARD, 1853
- Tantilla cucullata MINTON, 1956
- Tantilla cuniculator SMITH, 1939
- Tantilla deppei (BOCOURT, 1883)
- Tantilla flavilineata SMITH & BURGER, 1950
- Tantilla gottei MCCRANIE & SMITH, 2017
- Tantilla gracilis BAIRD & GIRARD, 1853
- Tantilla hobartsmithi TAYLOR, 1937
- Tantilla impensa CAMPBELL, 1998
- 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 olympia TOWNSEND, WILSON, MEDINA-FLORES & HERRERA-B, 2013
- Tantilla planiceps (BLAINVILLE, 1835)
- Tantilla psittaca MCCRANIE, 2011
- Tantilla robusta CANSECO-MÁRQUEZ, MENDELSON & GUTIÉRREZ-MAYÉN, 2002
- Tantilla rubra COPE, 1875
- Tantilla schistosa (BOCOURT, 1883)
- Tantilla sertula WILSON & CAMPBELL, 2000
- Tantilla shawi TAYLOR, 1949
- Tantilla slavensi PÉREZ-HIGAREDA, SMITH & SMITH, 1985
- Tantilla striata DUNN, 1928
- Tantilla taeniata BOCOURT, 1883
- Tantilla tayrae WILSON, 1983
- Tantilla tritaeniata SMITH & WILLIAMS, 1966
- Tantilla vermiformis (HALLOWELL, 1861)
- Tantilla vulcani CAMPBELL, 1998
- Tantilla wilcoxi STEJNEGER, 1902
- Tantilla yaquia SMITH, 1942
- Tantillita lintoni (SMITH, 1940)
- Tarentola annularis (GEOFFROY SAINT-HILAIRE, 1827)
- Tarentola chazaliae (MOCQUARD, 1895)
- Tarentola darwini JOGER, 1984
- Tarentola ephippiata O'SHAUGHNESSY, 1875
- Tarentola hoggarensis WERNER, 1937
- Tarentola mauritanica (LINNAEUS, 1758)
- Tarentola panousei PASTEUR, 1959
- Tarentola parvicarinata JOGER, 1980
- Tarentola senegambiae JOGER, 1984
- Techmarscincus jigurru (COVACEVICH, 1984)
- Teira dugesii (MILNE-EDWARDS, 1829)
- Teius oculatus (D’ORBIGNY & BIBRON, 1837)
- Teius teyou (DAUDIN, 1802)
- Tenuidactylus caspius (EICHWALD, 1831)
- Teratoscincus keyserlingii STRAUCH, 1863
- Teratoscincus rustamowi SZCZERBAK, 1979
- Teratoscincus scincus (SCHLEGEL, 1858)
- Teretrurus rhodogaster (WALL, 1921)
- Terrapene carolina (LINNAEUS, 1758)
- Terrapene coahuila SCHMIDT & OWENS, 1944
- Terrapene mexicana (GRAY, 1849)
- Terrapene nelsoni STEJNEGER, 1925
- Terrapene ornata (AGASSIZ, 1857)
- Terrapene triunguis (AGASSIZ, 1857)
- Terrapene yucatana (BOULENGER, 1895)
- Testudo graeca LINNAEUS, 1758
- Testudo hermanni GMELIN, 1789
- Testudo horsfieldii GRAY, 1844
- Testudo kleinmanni LORTET, 1883
- Testudo marginata SCHOEPFF, 1792
- Tetradactylus seps (LINNAEUS, 1758)
- Tetradactylus tetradactylus (DAUDIN, 1802)
- Thamnodynastes longicaudus FRANCO, FERREIRA, MARQUES & SAZIMA, 2003
- Thamnophis bogerti ROSSMAN & BURBRINK, 2005
- Thamnophis brachystoma (COPE, 1892)
- Thamnophis copei DUGÈS, 1879
- Thamnophis errans SMITH, 1942
- Thamnophis exsul ROSSMAN, 1969
- Thamnophis foxi ROSSMAN & BLANEY, 1968
- Thamnophis fulvus (BOCOURT, 1893)
- Thamnophis godmani (GÜNTHER, 1894)
- Thamnophis hammondii (KENNICOTT, 1860)
- Thamnophis marcianus (BAIRD & GIRARD, 1853)
- Thamnophis mendax WALKER, 1955
- Thamnophis proximus (SAY, 1823)
- Thamnophis saurita (LINNAEUS, 1766)
- Thamnophis scalaris COPE, 1861
- Thamnophis sirtalis (LINNAEUS, 1758)
- Thamnophis sumichrasti (COPE, 1866)
- Thecadactylus rapicauda (HOUTTUYN, 1782)
- Thrasops flavigularis (HALLOWELL, 1852)
- Tiliqua scincoides (WHITE, 1790)
- Timon lepidus (DAUDIN, 1802)
- Timon pater (LATASTE, 1880)
- Timon princeps (BLANFORD, 1874)
- Toenayar novemcarinata (ANDERSON, 1871)
- Tomistoma schlegelii (MÜLLER, 1838)
- Toropuku stephensi (ROBB, 1980)
- Toxicocalamus loriae (BOULENGER, 1898)
- Toxicocalamus nymani (LÖNNBERG, 1900)
- Tracheloptychus madagascariensis PETERS, 1854
- Trachemys adiutrix VANZOLINI, 1995
- Trachemys callirostris (GRAY, 1855)
- Trachemys decorata (BARBOUR & CARR, 1940)
- Trachemys decussata (GRAY, 1831)
- Trachemys dorbigni (DUMÉRIL & BIBRON, 1835)
- Trachemys gaigeae (HARTWEG, 1939)
- Trachemys grayi (BOCOURT, 1868)
- Trachemys medemi VARGAS-RAMÍREZ, VALLE, CEBALLOS & FRITZ, 2017
- Trachemys nebulosa (VAN DENBURGH, 1895)
- Trachemys ornata (GRAY, 1831)
- Trachemys scripta (THUNBERG, 1792)
- Trachemys stejnegeri SCHMIDT, 1928
- Trachemys taylori (LEGLER, 1960)
- Trachemys terrapen (BONNATERRE, 1789)
- Trachemys venusta (GRAY, 1856)
- Trachemys yaquia (LEGLER & WEBB, 1970)
- Trachydactylus hajarensis (ARNOLD, 1980)
- Trachydactylus spatalurus (ANDERSON, 1901)
- Trachylepis aureopunctata (GRANDIDIER, 1867)
- Trachylepis boettgeri (BOULENGER, 1887)
- Trachylepis comorensis (PETERS, 1854)
- Trachylepis elegans (PETERS, 1854)
- Trachylepis gravenhorstii (DUMÉRIL & BIBRON, 1839)
- Trachylepis homalocephala (WIEGMANN, 1828)
- Trachylepis laevigata (PETERS, 1869)
- Trachylepis loluiensis KINGDON & SPAWLS, 2010
- Trachylepis madagascariensis (MOCQUARD, 1908)
- Trachylepis polytropis (BOULENGER, 1903)
- Trachylepis quinquetaeniata (LICHTENSTEIN, 1823)
- Trachylepis sechellensis (DUMÉRIL & BIBRON, 1839)
- Trachylepis wingati (WERNER, 1908)
- Trachylepis wrightii (BOULENGER, 1887)
- Trapelus agilis (OLIVIER, 1807)
- Trapelus agnetae (WERNER, 1929)
- Trapelus mutabilis (MERREM, 1820)
- Trapelus tournevillei (LATASTE, 1880)
- Tretanorhinus mocquardi BOCOURT, 1891
- Tretanorhinus nigroluteus COPE, 1861
- Tretanorhinus taeniatus BOULENGER, 1903
- Tretanorhinus variabilis DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Tretioscincus bifasciatus (DUMÉRIL, 1851)
- Tribolonotus gracilis DE ROOIJ, 1909
- Tribolonotus novaeguineae (SCHLEGEL, 1834)
- Trilepida brasiliensis (LAURENT, 1949)
- Trilepida dugandi (DUNN, 1944)
- Trilepida joshuai (DUNN, 1944)
- Trilepida macrolepis (PETERS, 1858)
- Trilepida nicefori (DUNN, 1946)
- Trimeresurus albolabris GRAY, 1842
- Trimeresurus andersonii THEOBALD, 1868
- 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 kuiburi SUMONTHA, SUNTRARACHUN, PAUWELS, PAWANGKHANANT, CHOMNGAM, IAMWIRIYAKUL & CHANHOME, 2021
- Trimeresurus labialis FITZINGER, 1867
- Trimeresurus macrops KRAMER, 1977
- Trimeresurus malcolmi LOVERIDGE, 1938
- Trimeresurus mcgregori TAYLOR, 1919
- Trimeresurus medoensis ZHAO, 1977
- 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 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 yapingi (GUO, ZHU & LIU, 2019)
- Trimerodytes yunnanensis (RAO & YANG, 1998)
- Trimorphodon lambda COPE, 1886
- Trimorphodon quadruplex SMITH, 1941
- Trioceros chapini (DE WITTE, 1964)
- Trioceros ituriensis (SCHMIDT, 1919)
- Trioceros oweni (GRAY, 1831)
- Trioceros pfefferi (TORNIER, 1900)
- Trioceros schoutedeni (LAURENT, 1952)
- Trioceros schubotzi (STERNFELD, 1912)
- Trionyx triunguis (FORSKÅL, 1775)
- Trogonophis wiegmanni KAUP, 1830
- Tropicagama temporalis (GÜNTHER, 1867)
- Tropidechis carinatus (KREFFT, 1863)
- Tropidodipsas fischeri (BOULENGER, 1894)
- Tropidodryas striaticeps (COPE, 1870)
- Tropidolaemus wagleri (BOIE, 1827)
- Tropidophis battersbyi LAURENT, 1949
- Tropidophis cacuangoae ORTEGA-ANDRADE, BENTLEY, CLAUDIA KOCH, YÁNEZ-MUÑOZ & ENTIAUSPE-NETO, 2022
- Tropidophis grapiuna CURCIO, SALES-NUNES, SUZART ARGOLO, SKUK & RODRIGUES, 2012
- Tropidophis paucisquamis (MÜLLER, 1901)
- Tropidophis taczanowskyi (STEINDACHNER, 1880)
- Tropidophorus berdmorei (BLYTH, 1853)
- Tropidophorus boehmei NGUYEN, NGUYEN, SCHMITZ, ORLOV & ZIEGLER, 2010
- Tropidophorus brookei (GRAY, 1845)
- Tropidophorus cocincinensis DUMÉRIL & BIBRON, 1839
- Tropidophorus laotus SMITH, 1923
- Tropidosaura montana (GRAY, 1831)
- Tropidoscincus aubrianus BOCAGE, 1873
- Tropidurus bogerti ROZE, 1958
- Tropidurus cocorobensis RODRIGUES, 1987
- Tropidurus etheridgei CEI, 1982
- Tropidurus helenae (MANZANI & ABE, 1990)
- Tropidurus hispidus (SPIX, 1825)
- Tropidurus hygomi REINHARDT & LÜTKEN, 1862
- Tropidurus itambere RODRIGUES, 1987
- Tropidurus mucujensis RODRIGUES, 1987
- Tropidurus oreadicus RODRIGUES, 1987
- Tropidurus semitaeniatus (SPIX, 1825)
- Tropidurus spinulosus (COPE, 1862)
- Tropidurus torquatus (WIED-NEUWIED, 1820)
- Tropiocolotes tripolitanus PETERS, 1880
- Tukutuku rakiurae (THOMAS, 1981)
- Tumbunascincus luteilateralis (COVACEVICH & MCDONALD, 1980)
- Tupinambis cryptus MURPHY, JOWERS, LEHTINEN, CHARLES, COLLI, PERES JR, HENDRY & PYRON, 2016
- Tupinambis matipu SILVA, RIBEIRO-JÚNIOR & ÁVILA-PIRES, 2018
- Tupinambis quadrilineatus MANZANI & ABE, 1997
- Tupinambis teguixin (LINNAEUS, 1758)
- Tympanocryptis condaminensis MELVILLE, SMITH, HOBSON, HUNJAN & SHOO, 2014
- Tympanocryptis gigas MITCHELL, 1948
- Tympanocryptis houstoni STORR, 1982
- Tympanocryptis lineata PETERS, 1863
- Tympanocryptis macra STORR, 1982
- Tympanocryptis mccartneyi MELVILLE, CHAPLIN, HUTCHINSON, SUMNER, GRUBER, MACDONALD & SARRE, 2019
- Tympanocryptis pinguicolla MITCHELL, 1948
- Tympanocryptis tetraporophora LUCAS & FROST, 1895
- Tympanocryptis wilsoni MELVILLE, SMITH, HOBSON, HUNJAN & SHOO, 2014
- Typhlacontias punctatissimus BOCAGE, 1873
- Typhlops lumbricalis (LINNAEUS, 1758)
- Typhlops oxyrhinus DOMÍNGUEZ & DÍAZ, 2011
- Typhlops pachyrhinus DOMÍNGUEZ & DÍAZ, 2011
- Typhlops schwartzi THOMAS, 1989
- Typhlops syntherus THOMAS, 1965
- Typhlops tetrathyreus THOMAS, 1989
- Typhlops titanops THOMAS, 1989
- Typhlosaurus caecus (CUVIER, 1816)
- Tytthoscincus butleri (BOULENGER, 1912)
- Tytthoscincus hallieri (LIDTH DE JEUDE, 1905)
- Tytthoscincus ishaki (GRISMER, 2006)
- Tytthoscincus sibuensis (GRISMER, 2006)
- Uma cowlesi HEIFETZ, 1941
- Uma inornata COPE, 1895
- Uma notata BAIRD, 1858
- Uma scoparia COPE, 1894
- Underwoodisaurus milii (BORY DE SAINT-VINCENT, 1823)
- Ungaliophis continentalis MÜLLER, 1880
- Uracentron azureum (LINNAEUS, 1758)
- Uracentron flaviceps (GUICHENOT, 1855)
- Uranoscodon superciliosus (LINNAEUS, 1758)
- Urocotyledon inexpectata (STEJNEGER, 1893)
- Urocotyledon palmata (MOCQUARD, 1902)
- Uromastyx acanthinura BELL, 1825
- Uromastyx aegyptia (FORSKÅL, 1775)
- Uromastyx alfredschmidti WILMS & BÖHME, 2001
- Uromastyx benti (ANDERSON, 1894)
- Uromastyx dispar HEYDEN, 1827
- Uromastyx geyri MÜLLER, 1922
- Uromastyx macfadyeni PARKER, 1932
- Uromastyx nigriventris ROTHSCHILD & HARTERT, 1912
- Uromastyx occidentalis MATEO, GENIEZ, LOPEZ-JURADO & BONS, 1999
- Uromastyx ocellata LICHTENSTEIN, 1823
- Uromastyx ornata HEYDEN, 1827
- Uromastyx princeps O'SHAUGHNESSY, 1880
- Uromastyx shobraki WILMS & SCHMITZ, 2007
- Uromastyx thomasi PARKER, 1930
- Uromastyx yemenensis WILMS & SCHMITZ, 2007
- Uropeltis beddomii (GÜNTHER, 1862)
- Uropeltis broughami (BEDDOME, 1878)
- Uropeltis dindigalensis (BEDDOME, 1877)
- Uropeltis grandis (BEDDOME, 1867)
- Uropeltis liura (GÜNTHER, 1875)
- Uropeltis macrorhyncha (BEDDOME, 1877)
- Uropeltis maculata (BEDDOME, 1878)
- Uropeltis myhendrae (BEDDOME, 1886)
- Uropeltis nitida (BEDDOME, 1878)
- Uropeltis petersi (BEDDOME, 1878)
- Uropeltis phipsonii (MASON, 1888)
- Uropeltis pulneyensis (BEDDOME, 1863)
- Uropeltis rubrolineata (GÜNTHER, 1875)
- Uropeltis rubromaculata (BEDDOME, 1867)
- Uropeltis woodmasoni (THEOBALD, 1876)
- Uroplatus fimbriatus (SCHNEIDER, 1797)
- Urosaurus bicarinatus (DUMÉRIL, 1856)
- Urosaurus graciosus HALLOWELL, 1854
- Urosaurus nigricauda (COPE, 1864)
- Urosaurus ornatus (BAIRD & GIRARD, 1852)
- Urostrophus undulatus (WIEGMANN, 1834)
- Urostrophus vautieri DUMÉRIL & BIBRON, 1837
- Urotheca decipiens (GÜNTHER, 1893)
- Urotheca guentheri (DUNN, 1938)
- Uta stansburiana BAIRD & GIRARD, 1852
- Uvidicolus sphyrurus (OGILBY, 1892)
- Vanzosaura rubricauda (BOULENGER, 1902)
- Varanus bengalensis (DAUDIN, 1802)
- Varanus caspius (EICHWALD, 1831)
- Varanus chlorostigma (GRAY, 1831)
- Varanus colei BÖHME, JACOBS, KOPPETSCH & SCHMITZ, 2019
- Varanus cumingi MARTIN, 1839
- Varanus dalubhasa WELTON, TRAVERS, SILER & BROWN, 2014
- Varanus doreanus (MEYER, 1874)
- Varanus douarrha (LESSON, 1829)
- Varanus dumerilii SCHLEGEL, 1839
- Varanus eremius LUCAS & FROST, 1895
- Varanus griseus (DAUDIN, 1803)
- Varanus indicus (DAUDIN, 1802)
- Varanus jobiensis AHL, 1932
- Varanus marmoratus (WIEGMANN, 1834)
- Varanus nebulosus (GRAY, 1831)
- Varanus nesterovi BÖHME, EHRLICH, MILTO, ORLOV & SCHOLZ, 2015
- Varanus nuchalis (GÜNTHER, 1872)
- Varanus orientalis FRY, 1913
- Varanus rasmusseni KOCH, GAULKE & BÖHME, 2010
- Varanus rudicollis (GRAY, 1845)
- Varanus salvator (LAURENTI, 1768)
- Varanus samarensis KOCH, GAULKE & BÖHME, 2010
- Varanus scalaris MERTENS, 1941
- Varanus spinulosus MERTENS, 1941
- Varanus storri MERTENS, 1966
- Varanus togianus (PETERS, 1872)
- Varanus tsukamotoi KISHIDA, 1929
- Varanus yuwonoi HARVEY & BARKER, 1998
- Vermicella annulata (GRAY, 1841)
- Vermicella intermedia KEOGH & SMITH, 1996
- Vermicella multifasciata (LONGMAN, 1915)
- Vermicella snelli STORR, 1968
- Vermicella vermiformis KEOGH & SMITH, 1996
- Vijayachelys silvatica (HENDERSON, 1912)
- Vipera ammodytes (LINNAEUS, 1758)
- Vipera anatolica EISELT & BARAN, 1970
- Vipera darevskii VEDMEDERJA, ORLOV & TUNIYEV, 1986
- Vipera dinniki NIKOLSKY, 1913
- Vipera eriwanensis (REUSS, 1933)
- Vipera kaznakovi NIKOLSKY, 1909
- Vipera latastei BOSCA, 1878
- Vipera lotievi NILSON, TUNIYEV, ORLOV, HOGGREN & ANDREN, 1995
- Vipera meridionalis BOULENGER, 1903
- Vipera monticola SAINT GIRONS, 1953
- Vipera renardi (CHRISTOPH, 1861)
- Vipera ursinii (BONAPARTE, 1835)
- Virginia striatula (LINNAEUS, 1766)
- Virginia valeriae BAIRD & GIRARD, 1853
- Voeltzkowia mira BOETTGER, 1893
- Wallophis brachyura (GÜNTHER, 1866)
- Wetmorena agasepsoides (THOMAS, 1971)
- Wetmorena haetiana COCHRAN, 1927
- Wilsonosaura josyi (KÖHLER, 2003)
- Woodworthia brunnea (COPE, 1869)
- Woodworthia chrysosiretica (ROBB, 1980)
- Woodworthia maculata (GRAY, 1845)
- Xantusia vigilis BAIRD, 1859
- Xenagama batillifera (VAILLANT, 1882)
- Xenagama taylori (PARKER, 1935)
- Xenocalamus bicolor GÜNTHER, 1868
- Xenochrophis cerasogaster (CANTOR, 1839)
- Xenochrophis maculatus (EDELING, 1864)
- Xenochrophis trianguligerus (BOIE, 1827)
- Xenodon rabdocephalus (WIED-NEUWIED, 1824)
- Xenodon severus (LINNAEUS, 1758)
- Xenopeltis hainanensis HU & ZHAO, 1972
- Xenopeltis unicolor REINWARDT, 1827
- Xenopholis scalaris (WUCHERER, 1861)
- Xenosaurus rectocollaris SMITH & IVERSON, 1993
- Xenoxybelis argenteus (DAUDIN, 1803)
- Xenoxybelis boulengeri (PROCTER, 1923)
- Xylophis captaini GOWER & WINKLER, 2007
- Xylophis perroteti (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Xylophis stenorhynchus (GÜNTHER, 1875)
- Zamenis hohenackeri (STRAUCH, 1873)
- Zamenis longissimus (LAURENTI, 1768)
- Zonosaurus madagascariensis (GRAY, 1831)
- Zootoca carniolica (MAYER, BÖHME, TIEDEMANN & BISCHOFF, 2000)
- Zootoca vivipara (LICHTENSTEIN, 1823)
- Zygaspis dolichomenta (DE WITTE & LAURENT, 1942)
- Zygaspis quadrifrons (PETERS, 1862)
