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Species found: 2367
- Ablepharus alaicus ELPATJEVSKY, 1901
- Ablepharus chernovi DAREVSKY, 1953
- Ablepharus grayanus (STOLICZKA, 1872)
- Ablepharus himalayanus (GÜNTHER, 1864)
- Ablepharus kitaibelii COCTEAU, 1833
- Ablepharus ladacensis (GÜNTHER, 1864)
- Ablepharus pannonicus (LICHTENSTEIN, 1823)
- Ablepharus sikimmensis (BLYTH, 1854)
- Ablepharus tragbulensis (ALCOCK, 1898)
- Abronia cuchumatanus (SOLANO-ZAVALETA, NIETO-MONTES DE OCA & CAMPBELL, 2016)
- Abronia deppii (WIEGMANN, 1828)
- Abronia gadovii (BOULENGER, 1913)
- Abronia graminea (COPE, 1864)
- Abronia juarezi (KARGES & WRIGHT, 1987)
- Abronia monticola (COPE, 1878)
- Abronia moreletii (BOCOURT, 1872)
- Acanthocercus atricollis (SMITH, 1849)
- Acanthocercus ceriacoi MARQUES, PARRINHA, SANTOS, BANDEIRA, BUTLER, SOUSA, BAUER & WAGNER, 2022
- Acanthocercus margaritae WAGNER, BUTLER, CERÍACO & BAUER, 2021
- Acanthochelys radiolata (MIKAN, 1820)
- Acanthodactylus boskianus (DAUDIN, 1802)
- Acanthodactylus cantoris GÜNTHER, 1864
- Acanthodactylus erythrurus (SCHINZ, 1833)
- Acanthophis antarcticus (SHAW, 1802)
- Acanthosaura armata (GRAY, 1827)
- Acanthosaura crucigera BOULENGER, 1885
- Acanthosaura lepidogaster (CUVIER, 1829)
- Acanthosaura murphyi NGUYEN, DO, HOANG, NGUYEN, MCCORMACK, NGUYEN, ORLOV, NGUYEN & NGUYEN, 2018
- Achalinus formosanus BOULENGER, 1908
- Acontias occidentalis FITZSIMONS, 1941
- Acontias percivali LOVERIDGE, 1935
- Acrantophis madagascariensis (DUMÉRIL & BIBRON, 1844)
- Acrochordus granulatus (SCHNEIDER, 1799)
- Acrochordus javanicus HORNSTEDT, 1787
- Actinemys marmorata (BAIRD & GIRARD, 1852)
- Adelphicos quadrivirgatum JAN, 1862
- Adelphostigma occipitalis (JAN, 1863)
- Adolfus africanus (BOULENGER, 1906)
- Adolfus jacksoni (BOULENGER, 1899)
- Afroedura maripi JACOBSEN, KUHN, JACKMAN & BAUER, 2014
- Afroedura pienaari JACOBSEN, KUHN, JACKMAN & BAUER, 2014
- Afroedura transvaalica (HEWITT, 1925)
- Afronatrix anoscopus (COPE, 1861)
- Afrotyphlops cuneirostris (PETERS, 1879)
- Afrotyphlops dinga (PETERS, 1854)
- Afrotyphlops liberiensis (HALLOWELL, 1848)
- Afrotyphlops lineolatus (JAN, 1864)
- Afrotyphlops punctatus (LEACH, 1819)
- Agama africana (HALLOWELL, 1844)
- Agama agama (LINNAEUS, 1758)
- Agama anchietae BOCAGE, 1896
- Agama boensis MONARD, 1940
- Agama bottegi BOULENGER, 1897
- Agama boulengeri LATASTE, 1886
- Agama kirkii BOULENGER, 1885
- Agama lionotus BOULENGER, 1896
- Agama mossambica PETERS, 1854
- Agama spinosa GRAY, 1831
- Agamodon anguliceps PETERS, 1882
- Agkistrodon bilineatus GÜNTHER, 1863
- Agkistrodon contortrix (LINNAEUS, 1766)
- Agkistrodon howardgloydi CONANT, 1984
- Agkistrodon laticinctus GLOYD & CONANT, 1934
- Agkistrodon piscivorus (LACÉPÈDE, 1789)
- Agkistrodon russeolus GLOYD, 1972
- Ahaetulla borealis MALLIK, SRIKANTHAN, PAL, D’SOUZA, SHANKER & GANESH, 2020
- Ahaetulla flavescens (WALL, 1910)
- Ahaetulla mycterizans (LINNAEUS, 1758)
- Ahaetulla nasuta (LACÉPÈDE, 1789)
- Ahaetulla prasina (BOIE, 1827)
- Ahaetulla pulverulenta (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Algyroides nigropunctatus (DUMÉRIL & BIBRON, 1839)
- Alligator mississippiensis (DAUDIN, 1801)
- Alopoglossus gansorum RIBEIRO-JÚNIOR, SÁNCHEZ-MARTÍNEZ, MORAES, COSTA DE OLIVEIRA, CARVALHO, CHOUERI, WERNECK & MEIRI, 2021
- Altiphylax stoliczkai (STEINDACHNER, 1867)
- Amalosia rhombifer (GRAY, 1845)
- Amastridium sapperi (WERNER, 1903)
- Ameiva ameiva (LINNAEUS, 1758)
- Ameiva bifrontata COPE, 1862
- Ameiva reticulata LANDAURO, GARCÍA-BRAVO & VENEGAS, 2015
- Ameivula ocellifera (SPIX, 1825)
- Amerotyphlops arenensis GRABOSKI, PEREIRA-FILHO, SILVA, COSTA PRUDENTE & ZAHER, 2015
- Amerotyphlops brongersmianus (VANZOLINI, 1976)
- Amerotyphlops reticulatus (LINNAEUS, 1758)
- Amnisiophis amoenus (JAN, 1863)
- Amphibolurus muricatus (WHITE, 1790)
- Amphiesma stolatum (LINNAEUS, 1758)
- Amphisbaena caetitensis ALMEIDA, FREITAS, SILVA, COSTA-VALVERDE, RODRIGUES, PIRES & MOTT, 2018
- Amphisbaena darwinii DUMÉRIL & BIBRON, 1839
- Amphisbaena fuliginosa LINNAEUS, 1758
- Amphisbaena kingii (BELL, 1833)
- Amphisbaena mertensii STRAUCH, 1881
- Amphisbaena ridleyi BOULENGER, 1890
- Amphisbaena vermicularis WAGLER, 1824
- Amyda cartilaginea (BODDAERT, 1770)
- Anadia marmorata (GRAY, 1846)
- Anatololacerta anatolica (WERNER, 1900)
- Anatololacerta finikensis (EISELT & SCHMIDTLER, 1987)
- Anatololacerta pelasgiana (MERTENS, 1959)
- Ancylodactylus koehleri (MERTENS, 1937)
- Ancylodactylus spawlsi MALONZA & BAUER, 2022
- Anguis cephallonica WERNER, 1894
- Anguis colchica (NORDMANN, 1840)
- Anguis fragilis LINNAEUS, 1758
- Anguis graeca BEDRIAGA, 1881
- Anilios australis GRAY, 1845
- Anilios bituberculatus (PETERS, 1863)
- Anilios torresianus (BOULENGER, 1889)
- Anilius scytale (LINNAEUS, 1758)
- Anniella grinnelli PAPENFUSS & PARHAM, 2013
- Anolis aequatorialis WERNER, 1894
- Anolis allogus BARBOUR & RAMSDEN, 1919
- Anolis alocomyos (KÖHLER, VARGAS & LOTZKAT, 2014)
- Anolis angusticeps HALLOWELL, 1856
- Anolis aridius (KÖHLER, ZIMMER, MCGRATH & HEDGES, 2019)
- Anolis bahorucoensis NOBLE & HASSLER, 1933
- Anolis beckeri BOULENGER, 1881
- Anolis biporcatus (WIEGMANN, 1834)
- Anolis carolinensis VOIGT, 1832
- Anolis chrysolepis DUMÉRIL & BIBRON, 1837
- Anolis cobanensis STUART, 1942
- Anolis compressicauda SMITH & KERSTER, 1955
- Anolis conspersus GARMAN, 1887
- Anolis cooki GRANT, 1931
- Anolis cristatellus DUMÉRIL & BIBRON, 1837
- Anolis cupreus HALLOWELL, 1860
- Anolis cuprinus SMITH, 1964
- Anolis cuvieri MERREM, 1820
- Anolis distichus COPE, 1861
- Anolis dollfusianus BOCOURT, 1873
- Anolis equestris MERREM, 1820
- Anolis evermanni STEJNEGER, 1904
- Anolis fitchi WILLIAMS & DUELLMAN, 1984
- Anolis frenatus COPE, 1899
- Anolis fuscoauratus D’ORBIGNY, 1837
- Anolis gadovii BOULENGER, 1905
- Anolis grahami GRAY, 1845
- Anolis granuliceps BOULENGER, 1898
- Anolis gruuo KÖHLER, PONCE, SUNYER & BATISTA, 2007
- Anolis gundlachi PETERS, 1877
- Anolis haguei STUART, 1942
- Anolis immaculogularis KÖHLER, TREJO-PÉREZ, PETERSEN & MÉNDEZ DE LA CRUZ, 2014
- Anolis krugi PETERS, 1877
- Anolis laeviventris (WIEGMANN, 1834)
- Anolis lemurinus COPE, 1861
- Anolis limifrons COPE, 1863
- Anolis lineatopus GRAY, 1840
- Anolis liogaster BOULENGER, 1905
- Anolis lionotus COPE, 1861
- Anolis mccraniei (KÖHLER, TOWNSEND & PETERSEN, 2016)
- Anolis mirus WILLIAMS, 1963
- Anolis neblininus (MYERS, WILLIAMS & MCDIARMID, 1993)
- Anolis nebuloides BOCOURT, 1873
- Anolis nebulosus (WIEGMANN, 1834)
- Anolis ortonii COPE, 1868
- Anolis pentaprion COPE, 1863
- Anolis petersii BOCOURT, 1873
- Anolis porcatus GRAY, 1840
- Anolis princeps BOULENGER, 1902
- Anolis pulchellus DUMÉRIL & BIBRON, 1837
- Anolis punctatus DAUDIN, 1802
- Anolis pygmaeus ÁLVAREZ DEL TORO & SMITH, 1956
- Anolis quimbaya MORENO-ARIAS, MÉNDEZ-GALEANO, BELTRÁN & VARGAS-RAMÍREZ, 2023
- Anolis robinsoni CHAVES, RYAN, BOLAÑOS, MÁRQUEZ, KÖHLER & POE, 2023
- Anolis rodriguezii BOCOURT, 1873
- Anolis roquet (BONNATERRE, 1789)
- Anolis rubiginosus BOCOURT, 1873
- Anolis sagrei DUMÉRIL & BIBRON, 1837
- Anolis salvini BOULENGER, 1885
- Anolis schiedii (WIEGMANN, 1834)
- Anolis sericeus HALLOWELL, 1856
- Anolis smaragdinus BARBOUR & SHREVE, 1935
- Anolis sminthus DUNN & EMLEN, 1932
- Anolis squamulatus PETERS, 1863
- Anolis stevepoei KÖHLER, TREJO-PÉREZ, PETERSEN & MÉNDEZ DE LA CRUZ, 2014
- Anolis stratulus COPE, 1861
- Anolis tandai AVILA-PIRES, 1995
- Anolis tequendama MORENO-ARIAS, MÉNDEZ-GALEANO, BELTRÁN & VARGAS-RAMÍREZ, 2023
- Anolis torresfundorai TORRES, REILLY, NUÑEZ-PENICHET, REYNOLDS & GLOR, 2025
- Anolis tropidogaster HALLOWELL, 1856
- Anolis tropidonotus PETERS, 1863
- Anolis unilobatus KÖHLER & VESELY, 2010
- Anolis ustus COPE, 1864
- Anolis viridius KÖHLER & HEDGES, 2016
- Anolis zeus (KÖHLER & MCCRANIE, 2001)
- Anomalopus leuckartii (WEINLAND, 1863)
- Anomalopus verreauxii DUMÉRIL, 1851
- Anotosaura vanzolinia DIXON, 1974
- Antaresia childreni (GRAY, 1842)
- Antaresia maculosa (PETERS, 1873)
- Apalone ferox (SCHNEIDER, 1783)
- Apalone mutica (LESUEUR, 1827)
- Apalone spinifera (LESUEUR, 1827)
- Aparallactus lineatus (PETERS, 1870)
- Aparallactus lunulatus (PETERS, 1854)
- Aparallactus modestus (GÜNTHER, 1859)
- Aparallactus niger BOULENGER, 1897
- Apathya cappadocica (WERNER, 1902)
- Aphaniotis fusca (PETERS, 1864)
- Apostolepis assimilis (REINHARDT, 1861)
- Apostolepis cearensis GOMES, 1915
- Apostolepis flavotorquata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Apostolepis gaboi RODRIGUES, 1993
- Aprasia pulchella GRAY, 1839
- Archaeolacerta bedriagae (CAMERANO, 1885)
- Argyrophis diardii (SCHLEGEL, 1839)
- Argyrophis muelleri (SCHLEGEL, 1839)
- Aristelliger georgeensis (BOCOURT, 1873)
- Arizona elegans KENNICOTT, 1859
- Arizona occidentalis BLANCHARD, 1924
- Asaccus elisae (WERNER, 1896)
- Aspidelaps lubricus (LAURENTI, 1768)
- Aspidelaps scutatus (SMITH, 1849)
- Aspidomorphus dimorphus KRAUS, 2025
- Aspidoscelis arizonae (VAN DENBURGH, 1896)
- Aspidoscelis costatus (COPE, 1878)
- Aspidoscelis cozumela (GADOW, 1906)
- Aspidoscelis deppii (WIEGMANN, 1834)
- Aspidoscelis gularis (BAIRD & GIRARD, 1852)
- Aspidoscelis hyperythrus (COPE, 1863)
- Aspidoscelis inornatus (BAIRD, 1859)
- Aspidoscelis lineattissimus (COPE, 1878)
- Aspidoscelis marmoratus (BAIRD & GIRARD, 1852)
- Aspidoscelis motaguae (SACKETT, 1941)
- Aspidoscelis neomexicanus (LOWE & ZWEIFEL, 1952)
- Aspidoscelis neotesselatus (WALKER, CORDES & TAYLOR, 1997)
- Aspidoscelis sackii (WIEGMANN, 1834)
- Aspidoscelis sexlineatus (LINNAEUS, 1766)
- Aspidoscelis sonorae (LOWE & WRIGHT, 1964)
- Aspidoscelis tesselatus (SAY, 1822)
- Aspidoscelis tigris (BAIRD & GIRARD, 1852)
- Asthenodipsas laevis (BOIE, 1827)
- Astrochelys radiata (SHAW, 1802)
- Astrochelys yniphora (VAILLANT, 1885)
- Ateuchosaurus okinavensis (THOMPSON, 1912)
- Atheris anisolepis MOCQUARD, 1887
- Atheris ceratophora WERNER, 1896
- Atheris chlorechis (PEL, 1852)
- Atheris hirsuta ERNST & RÖDEL, 2002
- Atheris mabuensis BRANCH & BAYLISS, 2009
- Atheris squamigera HALLOWELL, 1854
- Atractaspis andersonii BOULENGER, 1905
- Atractaspis aterrima GÜNTHER, 1863
- Atractaspis bibronii SMITH, 1849
- Atractaspis congica PETERS, 1877
- Atractaspis corpulenta (HALLOWELL, 1854)
- Atractaspis engaddensis HAAS, 1950
- Atractaspis irregularis (REINHARDT, 1843)
- Atractus badius (BOIE, 1827)
- Atractus boimirim PASSOS, PRUDENTE & LYNCH, 2016
- Atractus dapsilis MELO-SAMPAIO, PASSOS, FOUQUET, COSTA-PRUDENTE & TORRES-CARVAJAL, 2019
- Atractus major BOULENGER, 1894
- Atractus marthae MENESES-PELAYO & PASSOS, 2019
- Atractus michaelsabini ARTEAGA, QUEZADA, VIEIRA & GUAYASAMIN, 2022
- Atractus paraguayensis WERNER, 1924
- Atractus schach (BOIE, 1827)
- Atractus ukupacha MELO-SAMPAIO, PASSOS, PRUDENTE, VENEGAS & TORRES-CARVAJAL, 2021
- Austrelaps superbus (GÜNTHER, 1858)
- Austroablepharus naranjicaudus (GREER, FISHER & HORNER, 2004)
- Azemiops feae BOULENGER, 1888
- Bachia alleni (BARBOUR, 1914)
- Bachia bicolor (COPE, 1896)
- Bachia dorbignyi (DUMÉRIL & BIBRON, 1839)
- Bachia heteropa (LICHTENSTEIN & MARTENS, 1856)
- Bachia lineata BOULENGER, 1903
- Bachia peruana (WERNER, 1901)
- Bachia trinitatis (BARBOUR, 1914)
- Bachia trisanale (COPE, 1868)
- Barisia imbricata (WIEGMANN, 1828)
- Basiliscus basiliscus (LINNAEUS, 1758)
- Basiliscus vittatus WIEGMANN, 1828
- Batagur affinis (CANTOR, 1847)
- Bavayia campestris BAUER, SADLIER & JACKMAN, 2022
- Bavayia cyclura (GÜNTHER, 1872)
- Bavayia renevierorum BAUER, SADLIER & JACKMAN, 2022
- Bavayia sauvagii (BOULENGER, 1883)
- Bitis arietans (MERREM, 1820)
- Bitis caudalis (SMITH, 1839)
- Bitis cornuta (DAUDIN, 1803)
- Bitis gabonica (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Bitis nasicornis (SHAW & NODDER, 1792)
- Bitis rhinoceros (SCHLEGEL, 1855)
- Bitis rubida BRANCH, 1997
- Blanus aporus WERNER, 1898
- Blanus cinereus (VANDELLI, 1797)
- Blanus strauchi (BEDRIAGA, 1884)
- Boa constrictor LINNAEUS, 1758
- Boa imperator DAUDIN, 1803
- Boaedon fuliginosus (BOIE, 1827)
- Boaedon lineatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Boaedon maculatus PARKER, 1932
- Boaedon mendesi CERÍACO, ARELLANO, JADIN, MARQUES, PARRINHA & HALLERMANN, 2021
- Boaedon olivaceus (DUMÉRIL, 1856)
- Boaedon virgatus (HALLOWELL, 1854)
- Bogertophis subocularis (BROWN, 1902)
- Boiga beddomei (WALL, 1909)
- Boiga cyanea (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga dendrophila (BOIE, 1827)
- Boiga forsteni (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga melanota (BOULENGER, 1896)
- Boiga multomaculata (BOIE, 1827)
- Boiga nigriceps (GÜNTHER, 1863)
- Boiruna maculata (BOULENGER, 1896)
- Boiruna sertaneja ZAHER, 1996
- Borikenophis portoricensis (REINHARDT & LÜTKEN, 1862)
- Bothriechis lateralis PETERS, 1862
- Bothriechis nigroadspersus (STEINDACHNER, 1870)
- Bothriechis nigroviridis PETERS, 1859
- Bothriechis nitidus (GÜNTHER, 1859)
- Bothriechis schlegelii (BERTHOLD, 1846)
- Bothriechis torvus (POSADA-ARANGO, 1889)
- Bothrophthalmus brunneus GÜNTHER, 1863
- Bothrophthalmus lineatus (PETERS, 1863)
- Bothrops asper (GARMAN, 1883)
- Bothrops atrox (LINNAEUS, 1758)
- Bothrops bilineatus (WIED-NEUWIED, 1821)
- Bothrops erythromelas (AMARAL, 1923)
- Bothrops jararaca (WIED-NEUWIED, 1824)
- Bothrops jararacussu LACERDA, 1884
- Bothrops leucurus WAGLER, 1824
- Bothrops lutzi (MIRANDA-RIBEIRO, 1915)
- Bothrops mattogrossensis AMARAL, 1925
- Bothrops neuwiedi WAGLER, 1824
- Bothrops pubescens (COPE, 1870)
- Brachymeles bicolor (GRAY, 1845)
- Brachymeles bonitae DUMÉRIL & BIBRON, 1839
- Brachymeles burksi TAYLOR, 1917
- Brachymeles talinis BROWN, 1956
- Brachymeles taylori BROWN, 1956
- Bradypodion pumilum (GMELIN, 1789)
- Brasiliscincus heathi (SCHMIDT & INGER, 1951)
- Bronchocela cristatella (KUHL, 1820)
- Bronchocela danieli (TIWARI & BISWAS, 1973)
- Bronchocela jubata DUMÉRIL & BIBRON, 1837
- Brookesia bonsi RAMANANTSOA, 1980
- Brookesia brygooi RAXWORTHY & NUSSBAUM, 1995
- Brookesia decaryi ANGEL, 1939
- Brookesia ebenaui (BOETTGER, 1880)
- Brookesia stumpffi BOETTGER, 1894
- Bungarus caeruleus (SCHNEIDER, 1801)
- Bungarus candidus (LINNAEUS, 1758)
- Bungarus fasciatus (SCHNEIDER, 1801)
- Bungarus lividus CANTOR, 1839
- Bunopus blanfordii STRAUCH, 1887
- Bunopus crassicauda NIKOLSKY, 1907
- Bunopus tuberculatus BLANFORD, 1874
- Cachryx defensor COPE, 1866
- Cacophis krefftii GÜNTHER, 1863
- Caiman crocodilus (LINNAEUS, 1758)
- Caiman latirostris (DAUDIN, 1801)
- Calabaria reinhardtii (SCHLEGEL, 1851)
- Calamaria albiventer (GRAY, 1834)
- Calamaria berezowskii GÜNTHER, 1896
- Calamaria gervaisii DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Calamaria linnaei BOIE, 1827
- Calamaria lovii BOULENGER, 1887
- Calamaria lumbricoidea BOIE, 1827
- Calamaria pavimentata DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Calamaria virgulata BOIE, 1827
- Caledoniscincus austrocaledonicus (BAVAY, 1869)
- Caledoniscincus notialis SADLIER, SMITH, BAUER & WOOD, 2013
- Calliophis bivirgatus (BOIE, 1827)
- Calliophis melanurus (SHAW, 1802)
- Calliophis nigrescens (GÜNTHER, 1862)
- Calliophis nigrotaeniatus PETERS, 1863
- Callisaurus draconoides BLAINVILLE, 1835
- Calotes calotes (LINNAEUS, 1758)
- Calotes ceylonensis MÜLLER, 1887
- Calotes grandisquamis GÜNTHER, 1875
- Calotes jerdoni GÜNTHER, 1870
- Calotes minor (HARDWICKE & GRAY, 1827)
- Calotes mystaceus DUMÉRIL & BIBRON, 1837
- Calotes nigrilabris PETERS, 1860
- Calotes paulus SMITH, 1935
- Calotes versicolor (DAUDIN, 1802)
- Calotes vindumbarbatus WAGNER, IHLOW, HARTMANN, FLECKS, SCHMITZ & BÖHME, 2021
- Calotes yunnanensis ANNANDALE, 1905
- Calotes zolaiking GIRI, CHAITANYA, MAHONY, LALRONUNGA, LALRINCHHANA, DAS, SARKAR, KARANTH & DEEPAK, 2019
- Calumma emelinae PRÖTZEL, SCHERZ, RATSOAVINA, VENCES & GLAW, 2020
- Calumma gehringi PRÖTZEL, VENCES, SCHERZ, VIEITES & GLAW, 2017
- Candoia carinata (SCHNEIDER, 1801)
- Candoia paulsoni (STULL, 1956)
- Cantoria violacea GIRARD, 1858
- Caretta caretta (LINNAEUS, 1758)
- Carettochelys insculpta RAMSAY, 1886
- Carlia bicarinata (MACLEAY, 1877)
- Carlia decora HOSKIN & COUPER, 2012
- Carlia fusca (DUMÉRIL & BIBRON, 1839)
- Carphodactylus laevis GÜNTHER, 1897
- Causus defilippii (JAN, 1863)
- Causus lichtensteinii (JAN, 1859)
- Causus maculatus (HALLOWELL, 1842)
- Celatiscincus euryotis (WERNER, 1910)
- Celestus crusculus (GARMAN, 1887)
- Cemophora coccinea (BLUMENBACH, 1788)
- Centrochelys sulcata (MILLER, 1779)
- Cerastes cerastes (LINNAEUS, 1758)
- Cerastes gasperettii LEVITON & ANDERSON, 1967
- Cerastes vipera (LINNAEUS, 1758)
- Ceratophora stoddartii GRAY, 1834
- Cerberus rynchops (SCHNEIDER, 1799)
- Cerberus schneiderii (SCHLEGEL, 1837)
- Cercophis auratus (SCHLEGEL, 1837)
- Cercosaura anordosquama STURARO, RODRIGUES, COLLI, KNOWLES & AVILA-PIRES, 2018
- Cercosaura argulus PETERS, 1862
- Cercosaura eigenmanni (GRIFFIN, 1917)
- Cercosaura ocellata WAGLER, 1830
- Cercosaura olivacea (GRAY, 1845)
- Cercosaura quadrilineata BOETTGER, 1876
- Cercosaura schreibersii WIEGMANN, 1834
- Cerrophidion godmani (GÜNTHER, 1863)
- Cerrophidion wilsoni JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
- Chalcides ocellatus (FORSKÅL, 1775)
- Chalcides viridanus (GRAVENHORST, 1851)
- Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851
- Chamaeleo chamaeleon (LINNAEUS, 1758)
- Chamaeleo dilepis LEACH, 1819
- Chamaeleo gracilis HALLOWELL, 1844
- Chamaeleo laevigatus GRAY, 1863
- Chamaeleo zeylanicus LAURENTI, 1768
- Chamaelycus christyi BOULENGER, 1919
- Chamaelycus fasciatus (GÜNTHER, 1858)
- Chamaelycus parkeri (ANGEL, 1934)
- Chamaesaura anguina LINNAEUS, 1758
- Charina bottae (BLAINVILLE, 1835)
- Chelodina kuchlingi CANN, 1997
- Chelodina longicollis (SHAW, 1794)
- Chelodina rugosa OGILBY, 1889
- Chelonia mydas (LINNAEUS, 1758)
- Chelonoidis carbonarius (SPIX, 1824)
- Chelonoidis niger (QUOY & GAIMARD, 1824)
- Chelydra rossignonii (BOCOURT, 1868)
- Chelydra serpentina (LINNAEUS, 1758)
- Chersobius signatus (GMELIN, 1789)
- Chersobius solus (BRANCH, 2007)
- Chersodromus liebmanni REINHARDT, 1861
- Chilabothrus inornatus (REINHARDT, 1843)
- Chilabothrus striatus (FISCHER, 1856)
- Chilabothrus strigilatus (COPE, 1862)
- Chioninia delalandii (DUMÉRIL & BIBRON, 1839)
- Chioninia spinalis (BOULENGER, 1906)
- Chironius bicarinatus (WIED-NEUWIED, 1820)
- Chironius brazili HAMDAN & FERNANDES, 2015
- Chironius carinatus (LINNAEUS, 1758)
- Chironius cochranae HOGE & ROMANO, 1969
- Chironius exoletus (LINNAEUS, 1758)
- Chironius flavolineatus (BOETTGER, 1885)
- Chironius foveatus BAILEY, 1955
- Chironius fuscus (LINNAEUS, 1758)
- Chironius gouveai ENTIAUSPE-NETO, LÚCIO-LYRA, KOCH, MARQUES-QUINTELA, DIESEL-ABEGG & LOEBMANN, 2020
- Chironius grandisquamis (PETERS, 1869)
- Chironius multiventris SCHMIDT & WALKER, 1943
- Chironius nigelnoriegai JADIN, JOWERS, BLAIR, LUDWIG, SALGADO-IRAZABAL & MURPHY, 2024
- Chironius scurrula (WAGLER, 1824)
- Chitra chitra NUTAPHAND, 1986
- Chitra indica (GRAY, 1831)
- Chlamydosaurus kingii GRAY, 1825
- Chondrodactylus bibronii (SMITH, 1846)
- Chondrodactylus turneri (GRAY, 1864)
- Chrysemys picta (SCHNEIDER, 1783)
- Chrysopelea ornata (SHAW, 1802)
- Chrysopelea paradisi BOIE, 1827
- Clelia clelia (DAUDIN, 1803)
- Clelia plumbea (WIED-NEUWIED, 1820)
- Clelia scytalina (COPE, 1867)
- Clemmys guttata (SCHNEIDER, 1792)
- Clonophis kirtlandii (KENNICOTT, 1856)
- Cnemaspis argus DRING, 1979
- Cnemaspis bayuensis GRISMER, GRISMER, WOOD & CHAN, 2008
- Cnemaspis grismeri WOOD, QUAH, ANUAR MS & MUIN, 2013
- Cnemaspis jacobsoni DAS, 2005
- Cnemaspis kalsubaiensis KHANDEKAR, THACKERAY, AGARWAL, GANGALMALE, KININGE, & GAIKWAD, 2024
- Cnemaspis karsticola GRISMER, GRISMER, WOOD & CHAN, 2008
- Cnemaspis kendallii (GRAY, 1845)
- Cnemaspis mcguirei GRISMER, GRISMER, WOOD & CHAN, 2008
- Cnemaspis nigridia (SMITH, 1925)
- Cnemaspis scalpensis (FERGUSON, 1877)
- Cnemaspis selamatkanmerapoh GRISMER, WOOD, MOHAMED, CHAN, HEINZ, SUMARLI, CHAN & LOREDO, 2013
- Cnemaspis selenolagus GRISMER, YUSHCHENKO, PAWANGKHANANT, NAZAROV, NAIDUANGCHAN, SUWANNAPOOM & POYARKOV, 2020
- Cnemidophorus lemniscatus (LINNAEUS, 1758)
- Coelognathus erythrurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Coelognathus helena (DAUDIN, 1803)
- Coelognathus radiatus (BOIE, 1827)
- Coleodactylus meridionalis BOULENGER, 1888
- Coleonyx elegans GRAY, 1845
- Coleonyx fasciatus (BOULENGER, 1885)
- Coleonyx nemoralis KLAUBER, 1945
- Coleonyx variegatus (BAIRD, 1858)
- Coluber constrictor LINNAEUS, 1758
- Coniophanes bipunctatus (GÜNTHER, 1858)
- Coniophanes fissidens (GÜNTHER, 1858)
- Coniophanes imperialis (BAIRD & GIRARD, 1859)
- Coniophanes lateritius COPE, 1862
- Conophis lineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Conophis vittatus PETERS, 1860
- Conopsis biserialis (TAYLOR & SMITH, 1942)
- Conopsis nasus (GÜNTHER, 1858)
- Contia tenuis (BAIRD & GIRARD, 1852)
- Copeoglossum aurae HEDGES & CONN, 2012
- Copeoglossum nigropunctatum (SPIX, 1825)
- Cophosaurus texanus TROSCHEL, 1852
- Corallus annulatus (COPE, 1875)
- Corallus hortulana (LINNAEUS, 1758)
- Corallus ruschenbergerii (COPE, 1875)
- Cordylus cordylus (LINNAEUS, 1758)
- Cordylus niger CUVIER, 1829
- Coronelaps lepidus (REINHARDT, 1861)
- Coronella austriaca LAURENTI, 1768
- Coryphophylax subcristatus (BLYTH, 1860)
- Corytophanes cristatus (MERREM, 1820)
- Corytophanes hernandesii (WIEGMANN, 1831)
- Craspedocephalus puniceus (BOIE, 1827)
- Crenadactylus ocellatus (GRAY, 1845)
- Crocodylus johnstoni KREFFT, 1873
- Crocodylus moreletii DUMÉRIL & BIBRON, 1851
- Crocodylus niloticus LAURENTI, 1768
- Crocodylus porosus SCHNEIDER, 1801
- Crossobamon eversmanni (WIEGMANN, 1834)
- Crotalus adamanteus PALISOT DE BEAUVOIS, 1799
- Crotalus atrox BAIRD & GIRARD, 1853
- Crotalus basiliscus (COPE, 1864)
- Crotalus brunneus HARRIS & SIMMONS, 1978
- Crotalus cerastes HALLOWELL, 1854
- Crotalus concolor WOODBURY, 1929
- Crotalus durissus LINNAEUS, 1758
- Crotalus enyo (COPE, 1861)
- Crotalus helleri MEEK, 1905
- Crotalus horridus LINNAEUS, 1758
- Crotalus lepidus (KENNICOTT, 1861)
- Crotalus lutosus KLAUBER, 1930
- Crotalus mitchellii (COPE, 1861)
- Crotalus molossus BAIRD & GIRARD, 1853
- Crotalus morulus KLAUBER, 1952
- Crotalus oreganus HOLBROOK, 1840
- Crotalus polystictus (COPE, 1865)
- Crotalus pricei VAN DENBURGH, 1895
- Crotalus scutulatus (KENNICOTT, 1861)
- Crotalus tigris KENNICOTT, 1859
- Crotalus tlaloci BRYSON, LINKEM, DORCAS, LATHROP, JONES, ALVARADO-DÍAZ, GRÜNWALD & MURPHY, 2014
- Crotalus triseriatus (WAGLER, 1830)
- Crotalus viridis (RAFINESQUE, 1818)
- Crotalus willardi MEEK, 1905
- Crotaphopeltis hippocrepis (REINHARDT, 1843)
- Crotaphopeltis hotamboeia (LAURENTI, 1768)
- Crotaphytus collaris (SAY, 1822)
- Crotaphytus reticulatus BAIRD, 1858
- Cryophis hallbergi BOGERT & DUELLMAN, 1963
- Cryptoblepharus africanus (STERNFELD, 1918)
- Cryptoblepharus ater (BOETTGER, 1913)
- Cryptoblepharus australis (STERNFELD, 1918)
- Cryptoblepharus bitaeniatus (BOETTGER, 1913)
- Cryptoblepharus boutonii (DES JARDIN, 1831)
- Cryptoblepharus cygnatus HORNER, 2007
- Cryptoblepharus eximius GIRARD, 1858
- Cryptoblepharus nigropunctatus (HALLOWELL, 1861)
- Cryptoblepharus novocaledonicus MERTENS, 1928
- Cryptoblepharus poecilopleurus (WIEGMANN, 1836)
- Cryptoblepharus pulcher (STERNFELD, 1918)
- Cryptoblepharus virgatus (GARMAN, 1901)
- Cryptophis nigrescens (GÜNTHER, 1862)
- Ctenophorus adelaidensis (GRAY, 1841)
- Ctenophorus femoralis (STORR, 1965)
- Ctenophorus mirrityana MCLEAN, MOUSSALLI, SASS, STUART-FOX, 2013
- Ctenophorus pictus (PETERS, 1866)
- Ctenophorus reticulatus (GRAY, 1845)
- Ctenophorus scutulatus (STIRLING & ZIETZ, 1893)
- Ctenosaura acanthura (SHAW, 1802)
- Ctenosaura pectinata (WIEGMANN, 1834)
- Ctenosaura similis (GRAY, 1831)
- Ctenotus borealis HORNER & KING, 1985
- Ctenotus brachyonyx STORR, 1971
- Ctenotus brevipes STORR, 1981
- Ctenotus fallens STORR, 1974
- Ctenotus helenae STORR, 1969
- Ctenotus inornatus (GRAY, 1845)
- Ctenotus kutjupa HUTCHINSON, PRATES & RABOSKY, 2022
- Ctenotus labillardieri (DUMÉRIL & BIBRON, 1839)
- Ctenotus severus STORR, 1969
- Ctenotus uber STORR, 1969
- Cubophis cantherigerus (BIBRON, 1843)
- Cuora amboinensis (DAUDIN, 1801)
- Cuora couro (SCHWEIGGER, 1812)
- Cuora flavomarginata (GRAY, 1863)
- Cuora lineata (MCCORD & PHILIPPEN, 1998)
- Cuora trifasciata (BELL, 1825)
- Cyclemys enigmatica FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cycloderma aubryi (DUMÉRIL, 1856)
- Cyclodomorphus gerrardii (GRAY, 1845)
- Cyclura collei GRAY, 1845
- Cyclura cornuta (BONNATERRE, 1789)
- Cyclura cychlura (CUVIER, 1829)
- Cyclura nubila (GRAY, 1831)
- Cyclura stejnegeri BARBOUR & NOBLE, 1916
- Cylindrophis ruffus (LAURENTI, 1768)
- Cyrtodactylus amphipetraeus CHOMDEJ, SUWANNAPOOM, PAWANGKHANANT, PRADIT, NAZAROV, GRISMER & POYARKOV, 2020
- Cyrtodactylus australotitiwangsaensis GRISMER, WOOD, QUAH, ANUAR, MUIN, SUMONTHA, AHMAD, BAUER, WANGKULANGKUL, GRISMER & PAUWELS, 2012
- Cyrtodactylus badenensis SANG, ORLOV & DAREVSKY, 2006
- Cyrtodactylus bintangrendah GRISMER, WOOD, QUAH, ANUAR, MUIN, SUMONTHA, AHMAD, BAUER, WANGKULANGKUL, GRISMER & PAUWELS, 2012
- Cyrtodactylus brevipalmatus (SMITH, 1923)
- Cyrtodactylus cardamomensis MURDOCH, GRISMER, WOOD, NEANG, POYARKOV, TRI, NAZAROV, AOWPHOL, PAUWELS, NGUYEN & GRISMER, 2019
- Cyrtodactylus cayuensis LI, 2007
- Cyrtodactylus chauquangensis QUANG, ORLOV, ANANJEVA, JOHNS, NGOC THAO & QUANG VINH, 2007
- Cyrtodactylus condorensis (SMITH, 1921)
- Cyrtodactylus consobrinus (PETERS, 1871)
- Cyrtodactylus dattanensis (KHAN, 1980)
- Cyrtodactylus eisenmanae NGO VAN TRI, 2008
- Cyrtodactylus grismeri NGO VAN TRI, 2008
- Cyrtodactylus hinnamnoensis LUU, BONKOWSKI, NGUYEN, LE, SCHNEIDER, NGO & ZIEGLER, 2016
- Cyrtodactylus hitchi RIYANTO, KURNIATI & ENGILIS, 2016
- Cyrtodactylus intermedius (SMITH, 1917)
- Cyrtodactylus karsticola PURKAYASTHA, LALREMSANGA, BOHRA, BIAKZUALA, DECEMSON, MUANSANGA, VABEIRYUREILAI & RATHEE, 2021
- Cyrtodactylus khasiensis (JERDON, 1870)
- Cyrtodactylus kohrongensis GRISMER, ONN, OAKS, NEANG, SOKUN, MURDOCH, STUART & GRISMER, 2020
- Cyrtodactylus louisiadensis (DE VIS, 1892)
- Cyrtodactylus marmoratus GRAY, 1831
- Cyrtodactylus nigriocularis SANG, ORLOV & DAREVSKY, 2006
- Cyrtodactylus oldhami (THEOBALD, 1876)
- Cyrtodactylus petani RIYANTO, GRISMER & WOOD, 2015
- Cyrtodactylus philippinicus (STEINDACHNER, 1867)
- Cyrtodactylus pubisulcus INGER, 1958
- Cyrtodactylus pulchellus GRAY, 1827
- Cyrtodactylus quadrivirgatus TAYLOR, 1962
- Cyrtodactylus rex OLIVER, RICHARDS, MUMPUNI & RÖSLER, 2016
- Cyrtodactylus tuberculatus (LUCAS & FROST, 1900)
- Cyrtodactylus ziegleri NAZAROV, ORLOV, NGUYEN & HO, 2008
- Cyrtopodion agamuroides (NIKOLSKY, 1900)
- Cyrtopodion kachhense (STOLICZKA, 1872)
- Cyrtopodion kirmanense (NIKOLSKY, 1900)
- Cyrtopodion rohtasfortai (KHAN & TASNIM, 1990)
- Cyrtopodion scabrum (HEYDEN, 1827)
- Cyrtopodion watsoni (MURRAY, 1892)
- Daboia mauritanica (GRAY, 1849)
- Daboia russelii (SHAW & NODDER, 1797)
- Dactylocnemis pacificus (GRAY, 1842)
- Dalophia ellenbergeri (ANGEL, 1920)
- Dalophia pistillum (BOETTGER, 1895)
- Darevskia armeniaca (MÉHELY, 1909)
- Darevskia bithynica (MÉHELY, 1909)
- Darevskia brauneri (MÉHELY, 1909)
- Darevskia caspica AHMADZADEH, FLECKS, CARRETERO, MOZAFFARI, BÖHME, HARRIS, FREITAS & RÖDDER, 2013
- Darevskia defilippii (CAMERANO, 1877)
- Darevskia mirabilis ARRIBAS, ILGAZ, KUMLUTAŞ, DURMUŞ, AVCI & ÜZÜM, 2013
- Darevskia obscura (LANTZ & CYRÉN, 1936)
- Darevskia parvula (LANTZ & CYRÉN, 1913)
- Darevskia praticola (EVERSMANN, 1834)
- Darevskia raddei (BOETTGER, 1892)
- Darevskia rudis (BEDRIAGA, 1886)
- Darevskia saxicola (EVERSMANN, 1834)
- Darevskia spitzenbergerae (EISELT, DAREVSKY & SCHMIDTLER, 1992)
- Darevskia steineri (EISELT, 1995)
- Darevskia szczerbaki (LUKINA, 1963)
- Darevskia valentini (BOETTGER, 1892)
- Dasia grisea (GRAY, 1845)
- Dasia olivacea GRAY, 1839
- Dasia vittata (EDELING, 1865)
- Dasypeltis abyssina (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Dasypeltis arabica BROADLEY & BATES, 2018
- Dasypeltis atra STERNFELD, 1912
- Dasypeltis fasciata SMITH, 1849
- Dasypeltis parascabra TRAPE, MEDIANNIKOV & TRAPE, 2012
- Dasypeltis scabra (LINNAEUS, 1758)
- Deirochelys reticularia (LATREILLE, 1801)
- Delma fraseri GRAY, 1831
- Delma labialis SHEA, 1987
- Delma petersoni SHEA, 1991
- Delma tincta DE VIS, 1888
- Demansia vestigiata (DE VIS, 1884)
- Dendragama australis HARVEY, SHANEY, SIDIK, KURNIAWAN & SMITH, 2017
- Dendragama dioidema HARVEY, SHANEY, SIDIK, KURNIAWAN & SMITH, 2017
- Dendrelaphis calligaster (GÜNTHER, 1867)
- Dendrelaphis caudolineatus (GRAY, 1834)
- Dendrelaphis cyanochloris (WALL, 1921)
- Dendrelaphis formosus (BOIE, 1827)
- Dendrelaphis kopsteini VOGEL & VAN ROOIJEN, 2007
- Dendrelaphis marenae VOGEL & VAN ROOIJEN, 2008
- Dendrelaphis philippinensis (GÜNTHER, 1879)
- Dendrelaphis proarchos (WALL, 1909)
- Dendrelaphis punctulatus (GRAY, 1826)
- Dendrelaphis tristis (DAUDIN, 1803)
- Dendroaspis angusticeps (SMITH, 1849)
- Dendroaspis jamesoni (TRAILL, 1843)
- Dendroaspis polylepis GÜNTHER, 1864
- Dendroaspis viridis (HALLOWELL, 1844)
- Dendrophidion apharocybe CADLE, 2012
- Dendrophidion clarkii DUNN, 1933
- Dendrophidion dendrophis (SCHLEGEL, 1837)
- Dendrophidion nuchale (PETERS, 1863)
- Dendrophidion percarinatum (COPE, 1893)
- Dendrophidion vinitor SMITH, 1941
- Dermatemys mawii GRAY, 1847
- Dermochelys coriacea (VANDELLI, 1761)
- Desertum lugoi (MCCOY, 1970)
- Diadophis punctatus (LINNAEUS, 1766)
- Diaphorolepis wagneri JAN, 1863
- Dibamus celebensis SCHLEGEL, 1858
- Dibamus leucurus (BLEEKER, 1860)
- Dibamus novaeguineae DUMÉRIL & BIBRON, 1839
- Dibamus tiomanensis DIAZ, LEONG, GRISMER & YAAKOB, 2004
- Dibernardia affinis (GÜNTHER, 1858)
- Dicrodon heterolepis (TSCHUDI, 1845)
- Diplodactylus ameyi COUPER & OLIVER, 2016
- Diplodactylus bilybara COUPER, PEPPER & OLIVER, 2014
- Diploderma brevicauda (MANTHEY, DENZER, HOU & WANG, 2012)
- Diploderma daduense CAI, LIU, LIANG, HOU, ZHOU, ZHONG, LI & CHANG, 2024
- Diploderma fasciatum (MERTENS, 1926)
- Diploderma formosgulae WANG, GAO, WU, DONG, SHI, QI, SILER & CHE, 2021
- Diploderma menghaiense LIU, HOU, WANG, ANANJEVA & RAO, 2020
- Diploderma slowinskii (RAO, VINDUM, MA, FU & WILKINSON, 2017)
- Diploderma splendidum (BARBOUR & DUNN, 1919)
- Diploderma swinhonis (GÜNTHER, 1864)
- Diploglossus lessonae PERACCA, 1890
- Diporiphora adductus DOUGHTY, KEALLEY & MELVILLE, 2012
- Diporiphora amphiboluroides LUCAS & FROST, 1902
- Diporiphora bilineata GRAY, 1842
- Diporiphora phaeospinosa EDWARDS & MELVILLE, 2011
- Dipsadoboa brevirostris (STERNFELD, 1908)
- Dipsadoboa flavida (BROADLEY & STEVENS, 1971)
- Dipsadoboa kageleri UTHMÖLLER, 1939
- Dipsadoboa shrevei (LOVERIDGE, 1932)
- Dipsadoboa underwoodi RASMUSSEN, 1993
- Dipsadoboa unicolor GÜNTHER, 1858
- Dipsadoboa viridis (PETERS, 1869)
- Dipsadoboa weileri (LINDHOLM, 1905)
- Dipsas andiana (BOULENGER, 1896)
- Dipsas articulata (COPE, 1868)
- Dipsas brevifacies (COPE, 1866)
- Dipsas ellipsifera (BOULENGER, 1898)
- Dipsas indica LAURENTI, 1768
- Dipsas klebbai ARTEAGA, SALAZAR-VALENZUELA, MEBERT, PEÑAFIEL, AGUIAR, SÁNCHEZ-NIVICELA, PYRON, COLSTON, CISNEROS-HEREDIA, YÁNEZ-MUÑOZ, VENEGAS, GUAYASAMIN & TORRES-CARVAJAL, 2018
- Dipsas maxillaris (WERNER, 1910)
- Dipsas neuwiedi (IHERING, 1911)
- Dipsas temporalis (WERNER, 1909)
- Dipsas turgida (COPE, 1868)
- Dipsas variegata (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Dipsas welborni ARTEAGA & BATISTA, 2023
- Dipsosaurus dorsalis (BAIRD & GIRARD, 1852)
- Dispholidus typus (SMITH, 1828)
- Dixonius luuhoangorum GRISMER, NEANG, TRI & GRISMER, 2025
- Dixonius siamensis (BOULENGER, 1899)
- Dogania subplana (GEOFFROY SAINT-HILAIRE, 1809)
- Dolichophis caspius (GMELIN, 1789)
- Dopasia gracilis (GRAY, 1845)
- Draco blanfordii BOULENGER, 1885
- Draco cornutus GÜNTHER, 1864
- Draco fimbriatus KUHL, 1820
- Draco formosus BOULENGER, 1900
- Draco hennigi MUSTERS, 1983
- Draco maculatus (GRAY, 1845)
- Draco melanopogon BOULENGER, 1887
- Draco obscurus BOULENGER, 1887
- Draco punctatus BOULENGER, 1900
- Draco quinquefasciatus HARDWICKE & GRAY, 1827
- Dravidoseps srivilliputhurensis AGARWAL, THACKERAY & KHANDEKAR, 2024
- Drepanoides anomalus (JAN, 1863)
- Drymarchon corais (BOIE, 1827)
- Drymarchon couperi (HOLBROOK, 1842)
- Drymarchon melanurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymobius chloroticus (COPE, 1886)
- Drymobius margaritiferus (SCHLEGEL, 1837)
- Drymoluber dichrous (PETERS, 1863)
- Dryophylax almae (FRANCO & FERREIRA, 2003)
- Dryophylax chaquensis (BERGNA & ÁLVAREZ, 1993)
- Dryophylax nattereri (MIKAN, 1820)
- Dryophylax phoenix (FRANCO, TREVINE, MONTINGELLI & ZAHER, 2017)
- Drysdalia coronoides (GÜNTHER, 1858)
- Duberria atriventris (STERNFELD, 1912)
- Duberria lutrix (LINNAEUS, 1758)
- Duberria shirana (BOULENGER, 1894)
- Ebenavia robusta HAWLITSCHEK, SCHERZ, RUTHENSTEINER, CROTTINI & GLAW, 2018
- Echinanthera undulata (WIED-NEUWIED, 1824)
- Echiopsis curta (SCHLEGEL, 1837)
- Echis carinatus (SCHNEIDER, 1801)
- Echis coloratus GÜNTHER, 1878
- Echis pyramidum (GEOFFROY SAINT-HILAIRE, 1827)
- Eirenis coronella (SCHLEGEL, 1837)
- Eirenis hakkariensis SCHMIDTLER & EISELT, 1991
- Eirenis modestus (MARTIN, 1838)
- Eirenis nigrofasciatus (NIKOLSKY, 1907)
- Eirenis persicus (ANDERSON, 1872)
- Eirenis punctatolineatus (BOETTGER, 1892)
- Elaphe cantoris (BOULENGER, 1894)
- Elaphe carinata (GÜNTHER, 1864)
- Elaphe climacophora (BOIE, 1826)
- Elaphe dione (PALLAS, 1773)
- Elaphe druzei JABLONSKI, RIBEIRO‐JÚNIOR & MEIRI, 2023
- Elaphe quadrivirgata (BOIE, 1826)
- Elaphe quatuorlineata (LACÉPÈDE, 1789)
- Elaphe sauromates (PALLAS, 1811)
- Elaphe schrenckii STRAUCH, 1873
- Elaphe taeniura COPE, 1861
- Elaphe urartica JABLONSKI, KUKUSHKIN, AVCI, BUNYATOVA, ILGAZ, TUNIYEV & JANDZIK, 2019
- Elapognathus minor (GÜNTHER, 1863)
- Elapomorphus quinquelineatus (RADDI, 1820)
- Elapsoidea semiannulata BOCAGE, 1882
- Elapsoidea sundevallii SMITH, 1848
- Elgaria coerulea (WIEGMANN, 1828)
- Elgaria multicarinata (BLAINVILLE, 1835)
- Emoia atrocostata (LESSON, 1829)
- Emoia caeruleocauda (DE VIS, 1892)
- Emoia impar (WERNER, 1898)
- Emoia longicauda (MACLEAY, 1877)
- Emydocephalus annulatus KREFFT, 1869
- Emydoidea blandingii (HOLBROOK, 1838)
- Emydura macquarii (GRAY, 1830)
- Emys orbicularis (LINNAEUS, 1758)
- Enhydris enhydris (SCHNEIDER, 1799)
- Enuliophis sclateri (BOULENGER, 1894)
- Enulius flavitorques (COPE, 1868)
- Enyalioides annularis (O'SHAUGHNESSY, 1881)
- Enyalioides praestabilis (O'SHAUGHNESSY, 1881)
- Enyalioides rudolfarndti VENEGAS, DURAN, LANDAURO & LUJAN, 2011
- Enyalius catenatus (WIED-NEUWIED, 1821)
- 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 bakewelli (OLIVER, 1937)
- Epictia borapeliotes (VANZOLINI, 1996)
- Epictia goudotii (DUMÉRIL & BIBRON, 1844)
- Epictia phenops (COPE, 1875)
- Epictia tenella (KLAUBER, 1939)
- Epictia wynni WALLACH, 2016
- Eremias acutirostris (BOULENGER, 1887)
- Eremias fasciata BLANFORD, 1874
- Eremias grammica (LICHTENSTEIN, 1823)
- Eremias lineolata (NIKOLSKY, 1897)
- Eremias persica BLANFORD, 1875
- Eremias scripta (STRAUCH, 1867)
- Eremias velox (PALLAS, 1771)
- Eremiascincus fasciolatus (GÜNTHER, 1867)
- Eretmochelys imbricata (LINNAEUS, 1766)
- Erpeton tentaculatum LACÉPÈDE, 1800
- Erymnochelys madagascariensis (GRANDIDIER, 1867)
- Erythrolamprus aesculapii (LINNAEUS, 1758)
- Erythrolamprus albiventris (JAN, 1863)
- Erythrolamprus almadensis (WAGLER, 1824)
- Erythrolamprus epinephelus (COPE, 1862)
- Erythrolamprus fraseri (BOULENGER, 1894)
- Erythrolamprus ingeri (ROZE, 1958)
- Erythrolamprus jaegeri (GÜNTHER, 1858)
- Erythrolamprus lamonae (DUNN, 1944)
- Erythrolamprus miliaris (LINNAEUS, 1758)
- Erythrolamprus mimus (COPE, 1868)
- Erythrolamprus poecilogyrus (WIED-NEUWIED, 1824)
- Erythrolamprus reginae (LINNAEUS, 1758)
- Erythrolamprus semiaureus (COPE, 1862)
- Erythrolamprus taeniogaster (JAN, 1863)
- Erythrolamprus viridis (GÜNTHER, 1862)
- Eryx colubrinus (LINNAEUS, 1758)
- Eryx conicus (SCHNEIDER, 1801)
- Eryx jaculus (LINNAEUS, 1758)
- Eryx jayakari BOULENGER, 1888
- Eryx johnii (RUSSELL, 1801)
- Eryx miliaris (PALLAS, 1773)
- Eryx vittatus CHERNOV, 1959
- Eublepharis macularius (BLYTH, 1854)
- Eugongylus albofasciolatus (GÜNTHER, 1872)
- Eugongylus rufescens (SHAW, 1802)
- Eulamprus kosciuskoi (KINGHORN, 1932)
- Eulamprus quoyii (DUMÉRIL & BIBRON, 1839)
- Eumeces schneiderii (DAUDIN, 1802)
- Eumeces zarudnyi NIKOLSKY, 1900
- Eunectes murinus (LINNAEUS, 1758)
- Eurydactylodes vieillardi (BAVAY, 1869)
- Eurylepis taeniolata BLYTH, 1854
- Euspondylus excelsum CHÁVEZ, CATENAZZI & VENEGAS, 2017
- Eutropis borealis (BROWN & ALCALA, 1980)
- Eutropis carinata (SCHNEIDER, 1801)
- Eutropis dawsoni (ANNANDALE, 1909)
- Eutropis lapulapu BARLEY, DIESMOS, SILER, MARTINEZ & BROWN, 2020
- Eutropis longicaudata (HALLOWELL, 1857)
- Eutropis macularia (BLYTH, 1853)
- Eutropis multicarinata (GRAY, 1845)
- Eutropis multifasciata (KUHL, 1820)
- Eutropis rudis (BOULENGER, 1887)
- Eutropis rugifera (STOLICZKA, 1870)
- Eutropis sahulinghangganan BARLEY, DIESMOS, SILER, MARTINEZ & BROWN, 2020
- Eutropis trivittata (HARDWICKE & GRAY, 1827)
- Farancia abacura (HOLBROOK, 1836)
- Ferania sieboldii (SCHLEGEL, 1837)
- Fojia bumui GREER & SIMON, 1982
- Fowlea flavipunctata (HALLOWELL, 1860)
- Fowlea melanzosta (GRAVENHORST, 1807)
- Fowlea piscator (SCHNEIDER, 1799)
- Furcifer pardalis (CUVIER, 1829)
- Furcifer verrucosus (CUVIER, 1829)
- Furcifer voeltzkowi (BOETTGER, 1893)
- Furina diadema (SCHLEGEL, 1837)
- Furina tristis (GÜNTHER, 1858)
- Gallotia simonyi (STEINDACHNER, 1889)
- Gambelia copeii (YARROW, 1882)
- Gambelia sila (STEJNEGER, 1890)
- Gambelia wislizenii (BAIRD & GIRARD, 1852)
- Gavialis gangeticus (GMELIN, 1789)
- Gehyra catenata LOW, 1979
- Gehyra mutilata (WIEGMANN, 1834)
- Gehyra oceanica (LESSON, 1829)
- Gehyra variegata (DUMÉRIL & BIBRON, 1836)
- Gehyra versicolor HUTCHINSON, SISTROM, DONNELLAN & HUTCHINSON, 2014
- Gekko albomaculatus (GIEBEL, 1861)
- Gekko badenii SZCZERBAK & NEKRASOVA, 1994
- Gekko cib LYU, LIN, REN, JIANG, ZHANG, QI & WANG, 2021
- Gekko cicakterbang (GRISMER, WOOD, GRISMER, QUAH, THY, PHIMMACHAK, SIVONGXAY, SEATEUN, STUART, SILER, MULCAHY, ANAMZA & BROWN, 2019)
- Gekko ernstkelleri RÖSLER, SILER, BROWN, DEMEGLIO & GAULKE, 2006
- Gekko gecko (LINNAEUS, 1758)
- Gekko hokouensis POPE, 1928
- Gekko horsfieldii (GRAY, 1827)
- Gekko japonicus (DUMÉRIL & BIBRON, 1836)
- Gekko kuhli (STEJNEGER, 1902)
- Gekko lionotum (ANNANDALE, 1905)
- Gekko melli (VOGT, 1922)
- Gekko mindorensis TAYLOR, 1919
- Gekko monarchus (SCHLEGEL, 1836)
- Gekko palmatus BOULENGER, 1907
- Gekko petricolus TAYLOR, 1962
- Gekko rhacophorus (BOULENGER, 1899)
- Gekko romblon BROWN & ALCALA, 1978
- Gekko rossi BROWN, OLIVEROS, SILER & DIESMOS, 2009
- Gekko scientiadventura RÖSLER, ZIEGLER, VU, HERRMANN & BÖHME, 2004
- Gekko smithii GRAY, 1842
- Geochelone platynota (BLYTH, 1863)
- Geophis brachycephalus (COPE, 1871)
- Geophis cansecoi GRÜNWALD, AHUMADA-CARRILLO, GRÜNWALD, MONTAÑO-RUVALCABA & GARCÍA-VÁZQUEZ, 2021
- Geophis dugesii BOCOURT, 1883
- Geophis sartorii (COPE, 1863)
- Geophis semidoliatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Gerarda prevostiana (EYDOUX & GERVAIS, 1837)
- Gerrhonotus infernalis BAIRD, 1859
- Gerrhonotus occidentalis NIETO-MONTES DE OCA, WIENS & GARCÍA-VÁZQUEZ, 2025
- Gerrhosaurus intermedius LÖNNBERG, 1907
- Gerrhosaurus nigrolineatus HALLOWELL, 1857
- Gloydius blomhoffii (BOIE, 1826)
- Gloydius halys (PALLAS, 1776)
- Gloydius himalayanus (GÜNTHER, 1864)
- Gloydius intermedius (STRAUCH, 1868)
- Gloydius ussuriensis (EMELIANOV, 1929)
- Glyptemys insculpta (LE CONTE, 1830)
- Glyptemys muhlenbergii (SCHOEPFF, 1801)
- Gonatodes albogularis (DUMÉRIL & BIBRON, 1836)
- Gonatodes hasemani GRIFFIN, 1917
- Gonatodes humeralis (GUICHENOT, 1855)
- Gonatodes machelae RIVERO-BLANCO & SCHARGEL, 2020
- Gonatodes rayito SCHARGEL, RIVAS, GARCÍA-PÉREZ, RIVERO-BLANCO, CHIPPINDALE & FUJITA, 2017
- Gonatodes vittatus (LICHTENSTEIN & MARTENS, 1856)
- Gongylosoma baliodeira (BOIE, 1827)
- Gongylosoma calamaria (GÜNTHER, 1858)
- Gonionotophis grantii (GÜNTHER, 1863)
- Gonionotophis klingi MATSCHIE, 1893
- Goniurosaurus kuroiwae (NAMIYE, 1912)
- Goniurosaurus sengokui HONDA & OTA, 2017
- Gonocephalus doriae PETERS, 1871
- Gonocephalus grandis (GRAY, 1845)
- Gonocephalus pyrius HARVEY, RECH, RIYANTO, KURNIAWAN & SMITH, 2021
- Gonocephalus sophiae (GRAY, 1845)
- Gonyosoma iadinum POYARKOV, BRAGIN, IDIIATULLINA, TRAN, LE, DAVID & NGUYEN, 2025
- Gonyosoma oxycephalum (BOIE, 1827)
- Gopherus agassizii (COOPER, 1861)
- Gopherus morafkai MURPHY, BERRY, EDWARDS, LEVITON, LATHROP & RIEDLE, 2011
- Gopherus polyphemus (DAUDIN, 1801)
- Gowidon longirostris (BOULENGER, 1883)
- Graptemys geographica (LESUEUR, 1817)
- Graptemys oculifera (BAUR, 1890)
- Graptemys ouachitensis CAGLE, 1953
- Graptemys pseudogeographica (GRAY, 1831)
- Graptemys pulchra BAUR, 1893
- Graptemys versa STEJNEGER, 1925
- Grayia caesar (GÜNTHER, 1863)
- Grayia smithii (LEACH, 1818)
- Grypotyphlops acutus (DUMÉRIL & BIBRON, 1844)
- Gyalopion canum (COPE, 1860)
- Gymnodactylus geckoides SPIX, 1825
- Gymnophthalmus lineatus (LINNAEUS, 1758)
- Gymnophthalmus speciosus (HALLOWELL, 1861)
- Gymnophthalmus underwoodi GRANT, 1958
- Hapsidophrys lineata FISCHER, 1856
- Hapsidophrys smaragdina (SCHLEGEL, 1837)
- Harpesaurus beccarii DORIA, 1888
- Hebius annamensis (BOURRET, 1934)
- Hebius gilhodesi (WALL, 1925)
- Hebius khasiensis (BOULENGER, 1890)
- Hebius pryeri (BOULENGER, 1887)
- Helicops angulatus (LINNAEUS, 1758)
- Helicops carinicaudus (WIED-NEUWIED, 1824)
- Helicops infrataeniatus JAN, 1865
- Helicops leopardinus (SCHLEGEL, 1837)
- Helicops modestus GÜNTHER, 1861
- Helicops polylepis GÜNTHER, 1861
- Helicops scalaris JAN, 1865
- Helicops trivittatus (GRAY, 1849)
- Heliobolus lugubris (SMITH, 1838)
- Heloderma alvarezi BOGERT & MARTIN DEL CAMPO, 1956
- Heloderma charlesbogerti CAMPBELL & VANNINI, 1988
- Heloderma exasperatum BOGERT & MARTIN DEL CAMPO, 1956
- Heloderma horridum (WIEGMANN, 1829)
- Heloderma suspectum COPE, 1869
- Hemachatus haemachatus (BONNATERRE, 1790)
- Hemidactylus alfarraji ŠMÍD, SHOBRAK, WILMS, JOGER & CARRANZA, 2016
- Hemidactylus alkiyumii CARRANZA & ARNOLD, 2012
- Hemidactylus angulatus HALLOWELL, 1854
- Hemidactylus bayonii BOCAGE, 1893
- Hemidactylus bouvieri (BOCOURT, 1870)
- Hemidactylus bowringii (GRAY, 1845)
- Hemidactylus brasilianus (AMARAL, 1935)
- Hemidactylus brookii GRAY, 1845
- Hemidactylus craspedotus MOCQUARD, 1890
- Hemidactylus fasciatus GRAY, 1842
- Hemidactylus festivus CARRANZA & ARNOLD, 2012
- Hemidactylus flaviviridis RÜPPELL, 1835
- Hemidactylus frenatus DUMÉRIL & BIBRON, 1836
- Hemidactylus garnotii DUMÉRIL & BIBRON, 1836
- Hemidactylus granti BOULENGER, 1899
- Hemidactylus gubanensis MAZUCH, JANÁK, VELENSKÁ, NISTRI, ABDIRAHMAN-ELMI & ŠMÍD, 2024
- Hemidactylus guineensis PETERS, 1869
- Hemidactylus homoeolepis BLANFORD, 1881
- Hemidactylus laticaudatus ANDERSSON, 1910
- Hemidactylus leschenaultii DUMÉRIL & BIBRON, 1836
- Hemidactylus longicephalus BOCAGE, 1873
- Hemidactylus luqueorum CARRANZA & ARNOLD, 2012
- Hemidactylus mabouia (MOREAU DE JONNÈS, 1818)
- Hemidactylus montanus BUSAIS & JOGER, 2011
- Hemidactylus muriceus PETERS, 1870
- Hemidactylus nzingae CERÍACO, AGARWAL, MARQUES & BAUER, 2020
- Hemidactylus paivae CERÍACO, AGARWAL, MARQUES & BAUER, 2020
- Hemidactylus pauciporosus LANZA, 1978
- Hemidactylus paucituberculatus CARRANZA & ARNOLD, 2012
- Hemidactylus persicus ANDERSON, 1872
- Hemidactylus platycephalus PETERS, 1854
- Hemidactylus platyurus (SCHNEIDER, 1797)
- Hemidactylus quartziticolus KHANDEKAR, THACKERAY, MARIAPPAN, GANGALMALE, WAGHE, PAWAR & AGARWAL, 2023
- Hemidactylus robustus HEYDEN, 1827
- Hemidactylus squamulatus TORNIER, 1897
- Hemidactylus turcicus (LINNAEUS, 1758)
- Hemidactylus ulii ŠMÍD, MORAVEC, KRATOCHVÍL, GVOŽDÍK, NASHER, BUSAIS, WILMS, SHOBRAK, CARRANZA, 2013
- Hemidactylus yerburii ANDERSON, 1895
- Hemiergis decresiensis (CUVIER, 1829)
- Hemiergis initialis (WERNER, 1910)
- Hemiergis peronii (GRAY, 1831)
- Hemiergis quadrilineatus (DUMÉRIL & BIBRON, 1839)
- Hemiphyllodactylus banaensis NGO VAN TRI, GRISMER, THAI & WOOD, 2014
- Hemiphyllodactylus bonkowskii NGUYEN, DO, NGO, PHAM, PHAM, LE & ZIEGLER, 2020
- Hemiphyllodactylus changningensis GUO, ZHOU, YAN & LI, 2015
- Hemiphyllodactylus chiangmaiensis GRISMER, WOOD & COTA, 2014
- Hemiphyllodactylus dushanensis ZHOU & LIU, 1981
- Hemiphyllodactylus harterti (WERNER, 1900)
- Hemiphyllodactylus huishuiensis YAN, LIN, GUO, LI & ZHOU, 2016
- Hemiphyllodactylus indosobrinus ELIADES, PHIMMACHAK, SIVONGXAY, SILER & STUART, 2019
- Hemiphyllodactylus insularis TAYLOR, 1918
- Hemiphyllodactylus jinpingensis ZHOU & LIU, 1981
- Hemiphyllodactylus khlonglanensis SUKPRASERT, SUTTHIWISES, LAUHACHINDA & TAKSINTUM, 2018
- Hemiphyllodactylus kiziriani NGUYEN, BOTOV, LE DUC, NOPHASEUD, BONKOWSKI & ZIEGLER, 2014
- Hemiphyllodactylus longlingensis ZHOU & LIU, 1981
- Hemiphyllodactylus montawaensis GRISMER, WOOD, THURA, ZIN, QUAH, MURDOCH, GRISMER, LI, KYAW & LWIN, 2017
- Hemiphyllodactylus ngwelwini GRISMER, WOOD, QUAH, THURA, OAKS & LIN, 2020
- Hemiphyllodactylus pardalis GRISMER, YUSHCHENKO, PAWANGKHANANT, NAIDUANGCHAN, NAZAROV, ORLOVA, SUWANNAPOOM & POYARKOV, 2020
- Hemiphyllodactylus typus BLEEKER, 1860
- Hemiphyllodactylus uga GRISMER, WOOD, THURA, ZIN, QUAH, MURDOCH, GRISMER, LI, KYAW & LWIN, 2018
- Hemiphyllodactylus yunnanensis (BOULENGER, 1903)
- Hemiphyllodactylus zugi NGUYEN, LEHMANN, LE DUC, DUONG, BONKOWSKI & ZIEGLER, 2013
- Hemirhagerrhis nototaenia (GÜNTHER, 1864)
- Hemitheconyx caudicinctus (DUMÉRIL, 1851)
- Hemorrhois hippocrepis (LINNAEUS, 1758)
- Hemorrhois nummifer (REUSS, 1834)
- Hemorrhois ravergieri (MÉNÉTRIES, 1832)
- Heosemys spinosa (GRAY, 1831)
- Heremites auratus (LINNAEUS, 1758)
- Heremites septemtaeniatus (REUSS, 1834)
- Heremites vittatus (OLIVIER, 1804)
- Herpetoreas platyceps (BLYTH, 1855)
- Herpetoreas sieboldii GÜNTHER, 1860
- Heterodon kennerlyi KENNICOTT, 1860
- Heterodon nasicus BAIRD & GIRARD, 1852
- Heterodon platirhinos LATREILLE, 1801
- Heteronotia binoei (GRAY, 1845)
- Hierophis gemonensis (LAURENTI, 1768)
- Hierophis viridiflavus (LACÉPÈDE, 1789)
- Holaspis laevis WERNER, 1896
- Holbrookia approximans BAIRD, 1859
- Holbrookia elegans BOCOURT, 1874
- Holbrookia lacerata COPE, 1880
- Holbrookia maculata GIRARD, 1851
- Holbrookia propinqua BAIRD & GIRARD, 1852
- Holcosus amphigrammus (SMITH & LAUFE, 1945)
- Holcosus chaitzami (STUART, 1942)
- Holcosus festivus (LICHTENSTEIN & MARTENS, 1856)
- Holcosus gaigeae (SMITH & LAUFE, 1946)
- Holcosus hartwegi (SMITH, 1940)
- Holcosus parvus (BARBOUR & NOBLE, 1915)
- Holcosus pulcher (HALLOWELL, 1861)
- Holcosus quadrilineatus (HALLOWELL, 1861)
- Holcosus sinister (SMITH & LAUFE, 1946)
- Holcosus stuarti SMITH, 1940
- Holcosus thomasi (SMITH & LAUFE, 1946)
- Holcosus undulatus (WIEGMANN, 1834)
- Homonota horrida (BURMEISTER, 1861)
- Homonota xiru MALLERET, PISETTA, FAGUNDES & VERRASTRO, 2023
- Homopholis fasciata (BOULENGER, 1890)
- Homopus areolatus (THUNBERG, 1787)
- Hormonotus modestus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Hydrodynastes gigas (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Hydromorphus concolor PETERS, 1859
- Hydrophis atriceps GÜNTHER, 1864
- Hydrophis curtus (SHAW, 1802)
- Hydrophis cyanocinctus DAUDIN, 1803
- Hydrophis fasciatus (SCHNEIDER, 1799)
- Hydrophis melanocephalus GRAY, 1849
- Hydrophis melanosoma GÜNTHER, 1864
- Hydrophis ornatus (GRAY, 1842)
- Hydrophis platurus (LINNAEUS, 1766)
- Hydrophis schistosus DAUDIN, 1803
- Hydrophis spiralis (SHAW, 1802)
- Hydrophis viperinus (SCHMIDT, 1852)
- Hydrops triangularis (WAGLER, 1824)
- Hydrosaurus pustulatus (ESCHSCHOLTZ, 1829)
- Hypsiglena chlorophaea COPE, 1860
- Hypsiglena ochrorhynchus COPE, 1860
- Hypsilurus longi (MACLEAY, 1877)
- Hypsirhynchus callilaemus (GOSSE, 1851)
- Hypsiscopus murphyi BERNSTEIN, VORIS, STUART, PHIMMACHAK, SEATEUN, SIVONGXAY, NEANG, KARNS, ANDREWS, OSTERHAGE, PHIPPS & RUANE, 2022
- Hypsiscopus plumbeus (BOIE, 1827)
- Hypsiscopus wettsteini (AMARAL, 1929)
- Ialtris dorsalis (GÜNTHER, 1858)
- Iberolacerta aranica (ARRIBAS, 1993)
- Iberolacerta cyreni (MÜLLER & HELLMICH, 1937)
- Iberolacerta monticola (BOULENGER, 1905)
- Ichnotropis bivittata BOCAGE, 1866
- Ichnotropis capensis (SMITH, 1838)
- Ichnotropis chapini SCHMIDT, 1919
- Ichnotropis grandiceps BROADLEY, 1967
- Ichnotropis longicorpa CONRADIE, KEATES, GREENBAUM, LOBÓN-ROVIRA, TOLLEY, BENITO, VAZ-PINTO, VAN BREDA & VERBURGT, 2025
- Ichnotropis microlepidota MARX, 1956
- Iguana iguana (LINNAEUS, 1758)
- Imantodes cenchoa (LINNAEUS, 1758)
- Imantodes gemmistratus (COPE, 1861)
- Incaspis amaru (ZAHER, ARREDONDO, VALENCIA, ARBELÁEZ, RODRIGUES & ALTAMIRANO-BENAVIDES, 2014)
- Indotyphlops braminus (DAUDIN, 1803)
- Intellagama lesueurii (GRAY, 1831)
- Ithycyphus miniatus (SCHLEGEL, 1837)
- Japalura tricarinata (BLYTH, 1853)
- Japalura variegata GRAY, 1853
- Kentropyx calcarata SPIX, 1825
- Kentropyx pelviceps (COPE, 1868)
- Kentropyx striata (DAUDIN, 1802)
- Kinixys belliana GRAY, 1831
- Kinixys homeana BELL, 1827
- Kinixys lobatsiana (POWER, 1927)
- Kinixys nogueyi (LATASTE, 1886)
- Kinixys spekii GRAY, 1863
- Kinixys zombensis HEWITT, 1931
- Kinosternon acutum GRAY, 1831
- Kinosternon albogulare (DUMÉRIL & BOCOURT, 1870)
- Kinosternon baurii (GARMAN, 1891)
- Kinosternon cruentatum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon flavescens (AGASSIZ, 1857)
- Kinosternon integrum LE CONTE, 1854
- Kinosternon leucostomum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon scorpioides (LINNAEUS, 1766)
- Kinosternon subrubrum BONNATERRE, 1789
- Kinyongia adolfifriderici (STERNFELD, 1912)
- Kinyongia excubitor (BARBOUR, 1911)
- Kinyongia fischeri (REICHENOW, 1887)
- Kinyongia tavetana (STEINDACHNER, 1891)
- Kinyongia tolleyae HUGHES, KUSAMBA, BEHANGANA & GREENBAUM, 2017
- Kinyongia uthmoelleri (MÜLLER, 1938)
- Kinyongia xenorhina (BOULENGER, 1901)
- Kladirostratus acutus (GÜNTHER, 1888)
- Kladirostratus togoensis (MATSCHIE, 1893)
- Lacerta agilis LINNAEUS, 1758
- Lacerta diplochondrodes WETTSTEIN, 1952
- Lacerta media LANTZ & CYRÉN, 1920
- Lacerta schreiberi BEDRIAGA, 1878
- Lacerta strigata EICHWALD, 1831
- Lacerta trilineata BEDRIAGA, 1886
- Lacerta viridis (LAURENTI, 1768)
- Lachesis muta (LINNAEUS, 1766)
- Lachesis rhombeata (WIED, 1824)
- Laemanctus longipes WIEGMANN, 1834
- Laemanctus serratus COPE, 1864
- Lamprolepis smaragdina (LESSON, 1829)
- Lampropeltis abnorma (BOCOURT, 1886)
- Lampropeltis alterna (BROWN, 1901)
- Lampropeltis annulata KENNICOTT, 1860
- Lampropeltis californiae (BLAINVILLE, 1835)
- Lampropeltis calligaster (HARLAN, 1827)
- Lampropeltis elapsoides (HOLBROOK, 1838)
- Lampropeltis extenuata (BROWN, 1890)
- Lampropeltis floridana (BLANCHARD, 1919)
- Lampropeltis getula (LINNAEUS, 1766)
- Lampropeltis mexicana (GARMAN, 1884)
- Lampropeltis micropholis COPE, 1860
- Lampropeltis polyzona COPE, 1860
- Lampropeltis rhombomaculata (HOLBROOK, 1840)
- Lampropeltis splendida (BAIRD & GIRARD, 1853)
- Lampropeltis triangulum (LACÉPÈDE, 1789)
- Lampropeltis zonata (LOCKINGTON, 1835)
- Lampropholis delicata (DE VIS, 1888)
- Lampropholis similis SINGHAL, HOSKIN, COUPER, POTTER & MORITZ, 2018
- Lankascincus dorsicatenatus (DERANIYAGALA, 1953)
- Lankascincus fallax (PETERS, 1860)
- Lanthanotus borneensis STEINDACHNER, 1878
- Larutia larutensis (BOULENGER, 1900)
- Larutia miodactyla (BOULENGER, 1903)
- Latastia longicaudata (REUSS, 1834)
- Laticauda colubrina (SCHNEIDER, 1799)
- Laticauda laticaudata (LINNAEUS, 1758)
- Laticauda saintgironsi COGGER & HEATWOLE, 2006
- Laticauda semifasciata (REINWARDT, 1837)
- Laudakia agrorensis (STOLICZKA, 1872)
- Laudakia nupta (DE FILIPPI, 1843)
- Laudakia stellio (LINNAEUS, 1758)
- Laudakia tuberculata (GRAY, 1827)
- Leiocephalus barahonensis SCHMIDT, 1921
- Leiocephalus carinatus GRAY, 1827
- Leiocephalus cubensis (GRAY, 1840)
- Leiocephalus schreibersii (GRAVENHORST, 1838)
- Leioheterodon madagascariensis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Leioheterodon modestus (GÜNTHER, 1863)
- Leiolepis belliana (HARDWICKE & GRAY, 1827)
- Leiolepis ocellata PETERS, 1971
- Lepidoblepharis nukak CALDERÓN-ESPINOSA & MEDINA-RANGEL, 2016
- Lepidochelys kempii GARMAN, 1880
- Lepidochelys olivacea (ESCHSCHOLTZ, 1829)
- Lepidodactylus lugubris (DUMÉRIL & BIBRON, 1836)
- Lepidodactylus planicaudus STEJNEGER, 1905
- Lepidophyma dontomasi (SMITH, 1942)
- Lepidophyma flavimaculatum DUMÉRIL, 1851
- Lepidophyma inagoi PALACIOS-AGUILAR, SANTOS-BIBIANO & FLORES-VILLELA, 2018
- Lepidophyma radula (SMITH, 1942)
- Lepidophyma smithii BOCOURT, 1876
- Leposoma annectans RUIBAL, 1952
- Leposoma scincoides SPIX, 1825
- Leposternon microcephalus WAGLER, 1824
- Leptodeira annulata (LINNAEUS, 1758)
- Leptodeira frenata (COPE, 1886)
- Leptodeira maculata (HALLOWELL, 1861)
- Leptodeira pulchriceps DUELLMAN, 1958
- Leptodeira septentrionalis (KENNICOTT, 1859)
- Leptodeira splendida GÜNTHER, 1885
- Leptodeira tarairiu COSTA, GRABOSKI, GRAZZIOTIN, ZAHER, RODRIGUES & PRUDENTE, 2022
- Leptophis ahaetulla (LINNAEUS, 1758)
- Leptophis bocourti BOULENGER, 1898
- Leptophis bolivianus OLIVER, 1942
- Leptophis diplotropis (GÜNTHER, 1872)
- Leptophis liocercus (WIED, 1824)
- Leptophis marginatus (COPE, 1862)
- Leptophis mexicanus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Leptophis modestus (GÜNTHER, 1872)
- Leptophis mystacinus ALBUQUERQUE, MARTINS, CARVALHO, SHEPARD & SANTANA, 2025
- Leptophis nebulosus OLIVER, 1942
- Leptophis nigromarginatus (GÜNTHER, 1866)
- Leptophis occidentalis (GÜNTHER, 1859)
- Leptophis praestans (COPE, 1868)
- Leptophis urostictus (PETERS, 1873)
- Leptotyphlops conjunctus (JAN, 1861)
- Leptotyphlops emini (BOULENGER, 1890)
- Leptotyphlops lepezi (BOULENGER, 1901)
- Leptotyphlops merkeri (WERNER, 1909)
- Leptotyphlops nigricans (SCHLEGEL, 1839)
- Leptotyphlops pitmani BROADLEY & WALLACH, 2007
- Leptotyphlops scutifrons (PETERS, 1854)
- Lerista borealis STORR, 1971
- Lerista bougainvillii (GRAY, 1839)
- Lerista desertorum (STERNFELD, 1919)
- Lerista planiventralis (LUCAS & FROST, 1902)
- Lerista praepedita (BOULENGER, 1887)
- Letheobia caeca (DUMÉRIL, 1856)
- Letheobia leucosticta (BOULENGER, 1898)
- Letheobia manni (LOVERIDGE, 1941)
- Liasis mackloti DUMÉRIL & BIBRON, 1844
- Lichanura trivirgata COPE, 1861
- Limaformosa capensis (SMITH, 1847)
- Limaformosa crossi (BOULENGER, 1895)
- Limaformosa guirali (MOCQUARD, 1887)
- Liodytes alleni (GARMAN, 1874)
- Liodytes rigida (SAY, 1825)
- Liolaemus absconditus VEGA, QUINTEROS, STELLATELLI, BELLAGAMBA, BLOCK & MADRID, 2018
- Liolaemus boulengeri KOSLOWSKY, 1898
- Liolaemus chiribaya AGUILAR-PUNTRIANO, RAMÍREZ, CASTILLO, MENDOZA, VARGAS & SITES JR, 2019
- Liolaemus erroneus (NÚÑEZ & YÁÑEZ, 1983)
- Liolaemus etheridgei LAURENT, 1998
- Liolaemus fitzingerii (DUMÉRIL & BIBRON, 1837)
- Liolaemus gravenhorstii (GRAY, 1845)
- Liolaemus lemniscatus GRAVENHORST, 1838
- Liolaemus multicolor KOSLOWSKY, 1898
- Liolaemus nigrodorsum TRONCOSO-PALACIOS & CONTRERAS, 2023
- Liolaemus pantherinus PELLEGRIN, 1909
- Liolaemus pikunche TRONCOSO-PALACIOS & RAMÍREZ-ÁLVAREZ, 2021
- Liolaemus poconchilensis VALLADARES, 2004
- Liolaemus polystictus LAURENT, 1992
- Liolaemus rothi KOSLOWSKY, 1898
- Liolaemus scorialis TRONCOSO-PALACIOS, DÍAZ, ESQUERRÉ & URRA, 2015
- Liolaemus signifer (DUMÈRIL & BIBRON, 1837)
- Liolaemus stolzmanni (STEINDACHNER, 1891)
- Liolaemus telsen CEI & SCOLARO, 1999
- Liotyphlops albirostris (PETERS, 1858)
- Liotyphlops bondensis (GRIFFIN, 1916)
- Liotyphlops petersii (BOULENGER, 1889)
- Liotyphlops wilderi (GARMAN, 1883)
- Lipinia auriculata (TAYLOR, 1917)
- Lipinia microcerca (BOETTGER, 1901)
- Lipinia pulchella (GRAY, 1845)
- Lipinia vittigera (BOULENGER, 1894)
- Lissemys punctata (BONNATERRE, 1789)
- Lophognathus horneri MELVILLE, RITCHIE, CHAPPLE, GLOR & SCHULTE, 2018
- Lophosaurus spinipes (DUMÉRIL, 1851)
- Loxocemus bicolor COPE, 1861
- Loxopholis guianense (RUIBAL, 1952)
- Lucasium steindachneri (BOULENGER, 1885)
- Luperosaurus macgregori STEJNEGER, 1907
- Lycodon aulicus (LINNAEUS, 1758)
- Lycodon capucinus BOIE, 1827
- Lycodon davisonii (BLANFORD, 1878)
- Lycodon fasciatus (ANDERSON, 1879)
- Lycodon fasciolatus (SHAW, 1802)
- Lycodon futsingensis (POPE, 1928)
- Lycodon jara (SHAW, 1802)
- Lycodon orientalis (HILGENDORF, 1880)
- Lycodon philippinus (GRIFFIN, 1909)
- Lycodon rufozonatus CANTOR, 1842
- Lycodon ruhstrati (FISCHER, 1886)
- Lycodon semicarinatus (COPE, 1860)
- Lycodon septentrionalis (GÜNTHER, 1875)
- Lycodon subannulatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Lycodon subcinctus BOIE, 1827
- Lycodon travancoricus (BEDDOME, 1870)
- Lycodon zawi SLOWINSKI, PAWAR, WIN, THIN, GYI, OO & TUN, 2001
- Lycodonomorphus leleupi (LAURENT, 1950)
- Lycognathophis seychellensis (SCHLEGEL, 1837)
- Lycophidion capense (SMITH, 1831)
- Lycophidion irroratum (LEACH, 1819)
- Lycophidion jacksoni BOULENGER, 1893
- Lycophidion nigromaculatum (PETERS, 1863)
- Lygodactylus capensis (SMITH, 1849)
- Lygodactylus gamblei LOBÓN-ROVIRA, BAUER, VAZ-PINTO, TRAPE, CONRADIE, KUSAMBA, JÚLIO, CAEL, STANLEY, HUGHES, BEHANGANA, MASUDI, PAUWELS & GREENBAUM, 2023
- Lygodactylus grotei STERNFELD, 1911
- Lygodactylus gutturalis (BOCAGE, 1873)
- Lygodactylus nyaneka MARQUES, CERIACO, BUEHLER, BANDEIRA, JANOTA & BAUER, 2020
- Lygodactylus paurospilus (LAURENT, 1952)
- Lygodactylus picturatus (PETERS, 1870)
- Lygodactylus scheffleri STERNFELD, 1912
- Lygodactylus tolampyae (GRANDIDIER, 1872)
- Lygodactylus winki VENCES, MULTZSCH, GIPPNER, MIRALLES, CROTTINI, GEHRING, RAKOTOARISON, RATSOAVINA, GLAW & SCHERZ, 2022
- Lygosoma corpulentum SMITH, 1921
- Lygosoma peninsulare GRISMER, QUAH, DUZULKAFLY & YAMBUN, 2018
- Lygosoma schneideri WERNER, 1900
- Lygosoma siamense SILER, HEITZ, DAVIS, FREITAS, AOWPHOL, TERMPRAYOON & GRISMER, 2018
- Lyriocephalus scutatus (LINNAEUS, 1758)
- Lytorhynchus diadema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Lytorhynchus gaddi NIKOLSKY, 1907
- Lytorhynchus paradoxus (GÜNTHER, 1875)
- Lytorhynchus ridgewayi BOULENGER, 1887
- Mabuya bistriata (SPIX, 1825)
- Mabuya mabouya (BONNATERRE, 1789)
- Mabuya yasuniensis TORRES-CARVAJAL, SANDOVAL & PAUCAR, 2024
- Macrochelys temminckii (TROOST, 1835)
- Macroprotodon cucullatus (GEOFFROY SAINT-HILAIRE, 1827)
- Macrovipera lebetinus (LINNAEUS, 1758)
- Madagascarophis colubrinus (SCHLEGEL, 1837)
- Madagascarophis ocellatus DOMERGUE, 1987
- Madascincus miafina MIRALLES, KÖHLER, GLAW & VENCES, 2016
- Magliophis exiguus (COPE, 1862)
- Malaclemys terrapin (SCHOEPFF, 1793)
- Malacochersus tornieri (SIEBENROCK, 1903)
- Malayodracon robinsonii (BOULENGER, 1908)
- Malayopython reticulatus (SCHNEIDER, 1801)
- Malpolon insignitus (GEOFFROY SAINT-HILAIRE, 1827)
- Malpolon moilensis (REUSS, 1834)
- Malpolon monspessulanus (HERMANN, 1804)
- Manolepis putnami (JAN, 1863)
- Manouria emys (SCHLEGEL & MÜLLER, 1844)
- Manouria impressa (GÜNTHER, 1882)
- Marisora aurulae HEDGES & CONN, 2012
- Marisora lineola MCCRANIE, MATTHEWS & HEDGES, 2020
- Marisora syntoma MCCRANIE, MATTHEWS & HEDGES, 2020
- Masticophis bilineatus JAN, 1863
- 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)
- Masticophis schotti BAIRD & GIRARD, 1853
- Masticophis taeniatus (HALLOWELL, 1852)
- Mastigodryas boddaerti (SENTZEN, 1796)
- Mastigodryas melanolomus (COPE, 1868)
- Mastigodryas pulchriceps (COPE, 1868)
- Mauremys mutica (CANTOR, 1842)
- Mauremys reevesii (GRAY, 1831)
- Mauremys rivulata (VALENCIENNES, 1833)
- Mauremys sinensis (GRAY, 1834)
- Mediodactylus danilewskii (STRAUCH, 1887)
- Mediodactylus kotschyi (STEINDACHNER, 1870)
- Mediodactylus oertzeni (BOETTGER, 1888)
- Mehelya poensis (SMITH, 1849)
- Meizodon coronatus (SCHLEGEL, 1837)
- Meizodon regularis FISCHER, 1856
- Meizodon semiornatus (PETERS, 1854)
- Melanosuchus niger (SPIX, 1825)
- Menetia amaura STORR, 1978
- Menetia greyii GRAY, 1845
- Meroles anchietae (BOCAGE, 1867)
- Meroles knoxii (MILNE-EDWARDS, 1829)
- Meroles reticulatus (BOCAGE, 1867)
- Meroles suborbitalis (PETERS, 1869)
- Mesalina guttulata (LICHTENSTEIN, 1823)
- Mesoclemmys gibba (SCHWEIGGER, 1812)
- Mesoclemmys raniceps (GRAY, 1856)
- Mesoclemmys vanderhaegei (BOUR, 1973)
- Mesoscincus altamirani (DUGÈS, 1891)
- Metlapilcoatlus nummifer (RÜPPELL, 1845)
- Micrablepharus maximiliani (REINHARDT & LÜTKEN, 1862)
- Micrelaps muelleri BOETTGER, 1880
- Microauris aurantolabium (KRISHNAN, 2008)
- Microcephalophis gracilis (SHAW, 1802)
- Microgecko helenae NIKOLSKY, 1907
- Microgecko persicus (NIKOLSKY, 1903)
- Microgecko varaviensis GHOLAMIFARD, RASTEGAR-POUYANI & RASTEGAR-POUYANI, 2019
- Microlophus albemarlensis (BAUR, 1890)
- Microlophus barringtonensis (BAUR, 1892)
- Microlophus bivittatus (PETERS, 1871)
- Microlophus indefatigabilis (BAUR, 1890)
- Microlophus occipitalis (PETERS, 1871)
- Micropechis ikaheca (LESSON, 1829)
- Micruroides euryxanthus (KENNICOTT, 1860)
- Micrurus alleni SCHMIDT, 1936
- Micrurus corallinus (MERREM, 1820)
- Micrurus diastema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus distans KENNICOTT, 1860
- Micrurus ephippifer (COPE, 1886)
- Micrurus fulvius (LINNAEUS, 1766)
- Micrurus helleri SCHMIDT & SCHMIDT, 1925
- Micrurus hemprichii (JAN, 1858)
- Micrurus ibiboboca (MERREM, 1820)
- Micrurus lemniscatus (LINNAEUS, 1758)
- Micrurus michoacanensis DUGES, 1891
- Micrurus mipartitus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus nigrocinctus (GIRARD, 1854)
- Micrurus ortoni (SCHMIDT, 1953)
- Micrurus spixii WAGLER, 1824
- Micrurus surinamensis (CUVIER, 1816)
- Micrurus tener (BAIRD & GIRARD, 1853)
- Mixcoatlus barbouri (DUNN, 1919)
- Mniarogekko chahoua (BAVAY, 1869)
- Mochlus sundevallii (SMITH, 1849)
- Mokopirirakau granulatus (GRAY, 1845)
- Moloch horridus GRAY, 1841
- Monilesaurus ellioti (GÜNTHER, 1864)
- Monilesaurus rouxii (DUMÉRIL & BIBRON, 1837)
- Montatheris hindii (BOULENGER, 1910)
- Montivipera bornmuelleri (WERNER, 1898)
- Montivipera raddei (BOETTGER, 1890)
- Morelia azurea (MEYER, 1874)
- Morelia imbricata (SMITH, 1981)
- Morelia spilota (LACÉPÈDE, 1804)
- Morelia viridis (SCHLEGEL, 1872)
- Morethia lineoocellata (DUMÉRIL & BIBRON, 1839)
- Mussurana bicolor (PERACCA, 1904)
- Myriopholis blanfordii (BOULENGER, 1890)
- Myriopholis boueti (CHABANAUD, 1917)
- Myriopholis braccianii (SCORTECCI, 1929)
- Myriopholis cairi (DUMÉRIL & BIBRON, 1844)
- Myriopholis erythraeus (SCORTECCI, 1929)
- Myriopholis longicauda (PETERS, 1854)
- Myriopholis macrorhyncha (JAN, 1860)
- Nactus kunan FISHER & ZUG, 2012
- Nactus multicarinatus (GÜNTHER, 1872)
- Nactus pelagicus (GIRARD, 1858)
- Naja haje (LINNAEUS, 1758)
- Naja melanoleuca HALLOWELL, 1857
- Naja mossambica PETERS, 1854
- Naja naja (LINNAEUS, 1758)
- Naja nigricollis REINHARDT, 1843
- Naja nubiae WÜSTER & BROADLEY, 2003
- Naja oxiana (EICHWALD, 1831)
- Naja senegalensis TRAPE, CHIRIO & WÜSTER, 2009
- Naja sputatrix BOIE, 1827
- Naja subfulva LAURENT, 1955
- Naja sumatrana MÜLLER, 1887
- Narophis bimaculatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Natator depressus (GARMAN, 1880)
- Natriciteres fuliginoides (GÜNTHER, 1858)
- Natriciteres olivacea (PETERS, 1854)
- Natriciteres variegata (PETERS, 1861)
- Natrix astreptophora (LOPEZ-SEOANE, 1885)
- Natrix maura (LINNAEUS, 1758)
- Natrix natrix (LINNAEUS, 1758)
- Natrix tessellata (LAURENTI, 1768)
- Naultinus elegans GRAY, 1842
- Neelaps calonotos (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Nephrurus asper GÜNTHER, 1876
- Nephrurus deleani HARVEY, 1983
- Nephrurus laevissimus MERTENS, 1958
- Nephrurus levis DE VIS, 1886
- Nephrurus sheai COUPER, 1994
- Nephrurus stellatus STORR, 1968
- Nephrurus vertebralis STORR, 1963
- Nephrurus wheeleri LOVERIDGE, 1932
- Nerodia clarkii (BAIRD & GIRARD, 1853)
- Nerodia cyclopion (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Nerodia erythrogaster (FORSTER, 1771)
- Nerodia fasciata (LINNAEUS, 1766)
- Nerodia floridana (GOFF, 1936)
- Nerodia rhombifer (HALLOWELL, 1852)
- Nerodia sipedon (LINNAEUS, 1758)
- Neusticurus bicarinatus (LINNAEUS, 1758)
- Nilssonia gangetica (CUVIER, 1825)
- Nilssonia hurum (GRAY, 1831)
- Ninia diademata BAIRD & GIRARD, 1853
- Ninia maculata (PETERS, 1861)
- Ninia sebae (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Ninia teresitae ANGARITA-SIERRA & LYNCH, 2017
- Notechis scutatus (PETERS, 1861)
- Nothopsis rugosus COPE, 1871
- Notomabuya frenata (COPE, 1863)
- Nucras boulengeri NEUMANN, 1900
- Nucras holubi (STEINDACHNER, 1882)
- Nucras ornata (GRAY, 1864)
- Nucras tessellata (SMITH, 1838)
- Oedura argentea HOSKIN, ZOZAYA & VANDERDUYS, 2018
- Oedura castelnaui (THOMINOT, 1889)
- Oedura marmorata GRAY, 1842
- Oligodon ancorus (GIRARD, 1858)
- Oligodon brevicauda GÜNTHER, 1862
- Oligodon cinereus (GÜNTHER, 1864)
- Oligodon cyclurus (CANTOR, 1839)
- Oligodon meyerinkii (STEINDACHNER, 1891)
- Oligodon modestus GÜNTHER, 1864
- Oligodon ocellatus (MORICE, 1875)
- Oligodon octolineatus (SCHNEIDER, 1801)
- Oligodon petronellae DE ROOIJ, 1917
- Oligodon sublineatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Oligodon taeniatus (GÜNTHER, 1861)
- Oligodon taeniolatus (JERDON, 1853)
- Oligosoma kokowai MELZER, BELL & PATTERSON, 2017
- Oligosoma nigriplantare (PETERS, 1874)
- Omanosaura jayakari (BOULENGER, 1887)
- Opheodrys aestivus (LINNAEUS, 1766)
- Opheodrys carinatus GROBMAN, 1984
- Opheodrys vernalis (HARLAN, 1827)
- Ophiodes fragilis (RADDI, 1820)
- Ophiodes striatus (SPIX, 1824)
- Ophiomorus tridactylus (BLYTH, 1853)
- Ophiophagus hannah (CANTOR, 1836)
- Ophisops elegans MÉNÉTRIES, 1832
- Ophisops jerdonii BLYTH, 1853
- Ophisops occidentalis (BOULENGER, 1887)
- Ophisops venustus PATEL, VYAS, THACKERAY, PAL & MIRZA, 2024
- Ophryacus smaragdinus GRÜNWALD, JONES, FRANZ-CHÁVEZ & AHUMADA-CARiLLO, 2015
- Opisthotropis zhaoermii REN, WANG, JIANG, GUO & LI, 2017
- Oplurus cuvieri GRAY, 1831
- Oplurus cyclurus (MERREM, 1820)
- Oplurus grandidieri (MOCQUARD, 1900)
- Ornithuroscincus noctua (LESSON, 1829)
- Ornithuroscincus pterophilus SLAVENKO, TAMAR, TALLOWIN, KRAUS, ALLISON, CARRANZA & MEIRI, 2021
- Osteolaemus osborni (SCHMIDT, 1919)
- Osteolaemus tetraspis COPE, 1861
- Otosaurus cumingii GRAY, 1845
- Ovophis monticola (GÜNTHER, 1864)
- Oxybelis aeneus (WAGLER, 1824)
- Oxybelis brevirostris (COPE, 1861)
- Oxybelis fulgidus (DAUDIN, 1803)
- Oxybelis inkaterra JADIN, JOWERS, ORLOFSKE, DUELLMAN, BLAIR & MURPHY, 2021
- Oxybelis koehleri JADIN, BLAIR, ORLOFSKE, JOWERS, RIVAS, VITT, RAY, SMITH & MURPHY, 2020
- Oxyrhopus clathratus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Oxyrhopus formosus (WIED-NEUWIED, 1820)
- Oxyrhopus guibei HOGE & ROMANO, 1977
- Oxyrhopus melanogenys (TSCHUDI, 1845)
- Oxyrhopus petolarius (LINNAEUS, 1758)
- Oxyrhopus rhombifer DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Oxyrhopus trigeminus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Pachydactylus ovahimba PARRINHA, MARQUES, PICELLI, JORDAAN, BISHOP-SCHOUSTER, HEINICKE, BAUER & CERÍACO, 2025
- Paleosuchus palpebrosus (CUVIER, 1807)
- Paleosuchus trigonatus (SCHNEIDER, 1801)
- Palusophis bifossatus (RADDI, 1820)
- Pamelaescincus gardineri (BOULENGER, 1909)
- Panaspis thomensis CERÍACO, SOARES, MARQUES, BASTOS-SILVEIRA, SCHEINBERG, HARRIS, BREHM & JESUS, 2018
- Panaspis togoensis (WERNER, 1902)
- Panaspis wahlbergii (SMITH, 1849)
- Pangshura sylhetensis JERDON, 1870
- Panolopus lanceolatus SCHOOLS & HEDGES, 2024
- Pantherophis alleghaniensis (HOLBROOK, 1836)
- Pantherophis emoryi (BAIRD & GIRARD, 1853)
- Pantherophis guttatus (LINNAEUS, 1766)
- Pantherophis obsoletus (SAY, 1823)
- Pantherophis quadrivittatus (HOLBROOK, 1836)
- Pantherophis slowinskii (BURBRINK, 2002)
- Paralaudakia caucasia (EICHWALD, 1831)
- Paralaudakia lehmanni (NIKOLSKY, 1896)
- Paraphimophis rusticus (COPE, 1878)
- Pareas carinatus WAGLER, 1830
- Pareas margaritophorus (JAN, 1866)
- Parvoscincus decipiens (BOULENGER, 1895)
- Parvoscincus kitangladensis (BROWN, 1995)
- Parvoscincus steerei (STEJNEGER, 1908)
- Pedioplanis branchi CHILDERS, KIRCHHOF & BAUER, 2021
- Pedioplanis burchelli (DUMÉRIL & BIBRON, 1839)
- Pedioplanis husabensis BERGER-DELL’MOUR & MAYER, 1989
- Pedioplanis mayeri CHILDERS, KIRCHHOF & BAUER, 2021
- Pedioplanis namaquensis (DUMÉRIL & BIBRON, 1839)
- Pedioplanis undata (SMITH, 1838)
- Pelodiscus axenaria (ZHOU, ZHANG & FANG, 1991)
- Pelodiscus sinensis (WIEGMANN, 1835)
- Pelomedusa galeata (SCHOEPFF, 1792)
- Pelomedusa subrufa (BONNATERRE, 1789)
- Peltocephalus dumerilianus (SCHWEIGGER, 1812)
- Pelusios carinatus LAURENT, 1956
- Pelusios castaneus (SCHWEIGGER, 1812)
- Pelusios gabonensis (DUMÉRIL, 1856)
- Pelusios sinuatus (SMITH, 1838)
- Pelusios subniger (BONNATERRE, 1789)
- Petrosaurus repens (VAN DENBURGH, 1895)
- Petrosaurus thalassinus (COPE, 1863)
- Phalotris lemniscatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phalotris suspectus (AMARAL, 1924)
- Phalotris tricolor (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phelsuma andamanensis BLYTH, 1861
- Phelsuma borbonica MERTENS, 1966
- Phelsuma comorensis BOETTGER, 1913
- Phelsuma madagascariensis GRAY, 1831
- Phelsuma modesta MERTENS, 1970
- Phelsuma serraticauda MERTENS, 1963
- Philochortus neumanni MATSCHIE, 1893
- Philodryas aestiva (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Philodryas agassizii (JAN, 1863)
- Philodryas chamissonis (WIEGMANN, 1835)
- Philodryas nattereri (STEINDACHNER, 1870)
- Philodryas olfersii (LICHTENSTEIN, 1823)
- Philodryas patagoniensis (GIRARD, 1858)
- Philothamnus angolensis BOCAGE, 1882
- Philothamnus carinatus (ANDERSSON, 1901)
- Philothamnus dorsalis (BOCAGE, 1866)
- Philothamnus heterodermus (HALLOWELL, 1857)
- Philothamnus heterolepidotus (GÜNTHER, 1863)
- Philothamnus hoplogaster (GÜNTHER, 1863)
- Philothamnus irregularis (LEACH, 1819)
- Philothamnus nitidus (GÜNTHER, 1863)
- Philothamnus semivariegatus (SMITH, 1840)
- Phimophis guerini (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phoenicolacerta kulzeri (MÜLLER & WETTSTEIN, 1932)
- Phoenicolacerta laevis (GRAY, 1838)
- Pholidobolus montium (PETERS, 1863)
- Pholidoscelis alboguttatus (BOULENGER, 1896)
- Pholidoscelis auberi (COCTEAU, 1838)
- Pholidoscelis chrysolaemus (COPE, 1868)
- Pholidoscelis desechensis (HEATWOLE & TORRES, 1967)
- Pholidoscelis erythrocephalus (SHAW, 1802)
- Pholidoscelis exsul (COPE, 1862)
- Pholidoscelis lineolatus (DUMÉRIL & BIBRON, 1839)
- Pholidoscelis plei (DUMÉRIL & BIBRON, 1839)
- Pholidoscelis polops (COPE, 1862)
- Phrynocephalus arabicus ANDERSON, 1894
- Phrynocephalus erythrurus ZUGMAYER, 1909
- Phrynocephalus frontalis STRAUCH, 1876
- Phrynocephalus guttatus (GMELIN, 1789)
- Phrynocephalus helioscopus (PALLAS, 1771)
- Phrynocephalus interscapularis LICHTENSTEIN, 1856
- Phrynocephalus maculatus ANDERSON, 1872
- Phrynocephalus mystaceus (PALLAS, 1776)
- Phrynocephalus ornatus BOULENGER, 1887
- Phrynocephalus przewalskii STRAUCH, 1876
- Phrynocephalus reticulatus EICHWALD, 1831
- Phrynocephalus scutellatus (OLIVIER, 1807)
- Phrynocephalus theobaldi BLYTH, 1863
- Phrynocephalus vlangalii STRAUCH, 1876
- Phrynonax poecilonotus (GÜNTHER, 1858)
- Phrynops geoffroanus (SCHWEIGGER, 1812)
- Phrynosoma asio COPE, 1864
- Phrynosoma blainvillii GRAY, 1839
- Phrynosoma braconnieri BOCOURT, 1870
- Phrynosoma cerroense STEJNEGER, 1893
- Phrynosoma cornutum (HARLAN, 1825)
- Phrynosoma coronatum (BLAINVILLE, 1835)
- Phrynosoma ditmarsi STEJNEGER, 1906
- Phrynosoma douglasii (BELL, 1829)
- Phrynosoma goodei STEJNEGER, 1893
- Phrynosoma hernandesi GIRARD, 1858
- Phrynosoma modestum GIRARD, 1852
- Phrynosoma orbiculare (LINNAEUS, 1758)
- Phrynosoma ornatissimum GIRARD, 1858
- Phrynosoma platyrhinos GIRARD, 1852
- Phrynosoma solare GRAY, 1845
- Phrynosoma taurus BOCOURT, 1870
- Phyllodactylus gerrhopygus (WIEGMANN, 1834)
- Phyllodactylus isabelae CASTRO-FRANCO & URIBE-PENA, 1992
- Phyllodactylus lanei SMITH, 1935
- Phyllodactylus lupitae CASTRO-FRANCO & URIBE-PENA, 1992
- Phyllodactylus magnus TAYLOR, 1942
- Phyllodactylus nocticolus DIXON, 1964
- Phyllodactylus rupinus DIXON, 1964
- Phyllodactylus saxatilis DIXON, 1964
- Phyllodactylus tuberculosus WIEGMANN, 1834
- Phyllodactylus xanti COPE, 1863
- Phyllopezus periosus RODRIGUES, 1986
- Phyllopezus pollicaris (SPIX, 1825)
- Phyllorhynchus decurtatus (COPE, 1868)
- Phyllurus caudiannulatus COVACEVICH, 1975
- Phyllurus ossa COUPER, COVACEVICH & MORITZ, 1993
- Phyllurus platurus (SHAW, 1790)
- Phymaturus maulense NUÑEZ, VELOSO, ESPEJO, VELOSO, CORTES & ARAYA, 2010
- Pinoyscincus abdictus (BROWN & ALCALA, 1980)
- Pinoyscincus coxi (TAYLOR, 1915)
- Pinoyscincus jagori (PETERS, 1864)
- Pituophis catenifer (BLAINVILLE, 1835)
- Pituophis deppei (DUMÉRIL, 1853)
- Pituophis lineaticollis (COPE, 1861)
- Pituophis melanoleucus (DAUDIN, 1803)
- Pituophis vertebralis (BLAINVILLE, 1835)
- Plagiopholis blakewayi BOULENGER, 1893
- Platyceps bholanathi (SHARMA, 1976)
- Platyceps brevis (BOULENGER, 1895)
- Platyceps collaris (MÜLLER, 1878)
- Platyceps florulentus (GEOFFROY SAINT-HILAIRE, 1827)
- Platyceps gracilis (GÜNTHER, 1862)
- Platyceps josephi DEEPAK, NARAYANAN, MOHAPATRA, DUTTA, MELVINSELVAN, KHAN, MAHLOW & TILLACK, 2021
- Platyceps karelini (BRANDT, 1838)
- Platyceps najadum (EICHWALD, 1831)
- Platyceps plinii (MERREM, 1820)
- Platyceps rhodorachis (JAN, 1863)
- Platyceps rogersi (ANDERSON, 1893)
- Platyceps saharicus SCHÄTTI & MCCARTHY, 2004
- Platyceps smithii (BOULENGER, 1895)
- Platyceps ventromaculatus (GRAY, 1834)
- Platysaurus guttatus SMITH, 1849
- Platysaurus intermedius MATSCHIE, 1891
- Platysaurus maculatus BROADLEY, 1965
- Platysternon megacephalum GRAY, 1831
- Plestiodon anthracinus BAIRD, 1849
- Plestiodon brevirostris (GÜNTHER, 1860)
- Plestiodon callicephalus (BOCOURT, 1879)
- Plestiodon chinensis (GRAY, 1839)
- Plestiodon egregius BAIRD, 1858
- Plestiodon elegans (BOULENGER, 1887)
- Plestiodon fasciatus (LINNAEUS, 1758)
- Plestiodon finitimus OKAMOTO & HIKIDA, 2012
- Plestiodon gilberti (VAN DENBURGH, 1896)
- Plestiodon inexpectatus (TAYLOR, 1932)
- Plestiodon laticeps (SCHNEIDER, 1801)
- Plestiodon latiscutatus HALLOWELL, 1861
- Plestiodon longirostris COPE, 1861
- Plestiodon lynxe (WIEGMANN, 1834)
- Plestiodon marginatus HALLOWELL, 1861
- Plestiodon multivirgatus HALLOWELL, 1858
- Plestiodon obsoletus BAIRD & GIRARD, 1852
- Plestiodon ochoterenae (TAYLOR, 1933)
- Plestiodon parvulus (TAYLOR, 1933)
- Plestiodon quadrilineatus BLYTH, 1853
- Plestiodon septentrionalis BAIRD, 1858
- Plestiodon skiltonianus BAIRD & GIRARD, 1852
- Plestiodon sumichrasti (COPE, 1867)
- Plestiodon tetragrammus BAIRD, 1859
- Plica plica (LINNAEUS, 1758)
- Plica umbra (LINNAEUS, 1758)
- Pliocercus elapoides COPE, 1860
- Podarcis bocagei (LOPEZ-SEOANE, 1885)
- Podarcis erhardii (BEDRIAGA, 1882)
- Podarcis hispanicus (STEINDACHNER, 1870)
- Podarcis lilfordi (GÜNTHER, 1874)
- Podarcis melisellensis (BRAUN, 1877)
- Podarcis muralis (LAURENTI, 1768)
- Podarcis peloponnesiacus (BIBRON & BORY, 1833)
- Podarcis pityusensis (BOSCÁ, 1883)
- Podarcis siculus (RAFINESQUE-SCHMALTZ, 1810)
- Podarcis tauricus (GEORGI, 1801)
- Podarcis thais (BUCHHOLZ, 1960)
- Podocnemis erythrocephala (SPIX, 1824)
- Podocnemis expansa (SCHWEIGGER, 1812)
- Podocnemis sextuberculata CORNALIA, 1849
- Podocnemis unifilis TROSCHEL, 1848
- Pogona barbata (CUVIER, 1829)
- Pogona henrylawsoni WELLS & WELLINGTON, 1985
- Pogona minor (STERNFELD, 1919)
- Pogona vitticeps (AHL, 1926)
- Polemon acanthias (REINHARDT, 1861)
- Polemon fulvicollis (MOCQUARD, 1887)
- Polemon graueri (STERNFELD, 1908)
- Polychrus acutirostris SPIX, 1825
- Polychrus marmoratus (LINNAEUS, 1758)
- Porthidium lansbergii (SCHLEGEL, 1841)
- Porthidium nasutum (BOCOURT, 1868)
- Porthidium ophryomegas (BOCOURT, 1868)
- Potamites ecpleopus (COPE, 1875)
- Pristurus carteri (GRAY, 1863)
- Pristurus masirahensis TAMAR, MITSI, SIMÓ-RIUDALBAS, TEJERO-CICUÉNDEZ, AL-SARIRI & CARRANZA, 2019
- Prosymna ambigua BOCAGE, 1873
- Prosymna frontalis (PETERS, 1867)
- Prosymna meleagris (REINHARDT, 1843)
- Prosymna stuhlmanni (PFEFFER, 1893)
- Protobothrops flavoviridis (HALLOWELL, 1861)
- Protobothrops himalayanus PAN, CHETTRI, YANG, JIANG, WANG, ZHANG & VOGEL, 2013
- Protobothrops jerdonii (GÜNTHER, 1875)
- Protobothrops mangshanensis (ZHAO, 1990)
- Protobothrops mucrosquamatus (CANTOR, 1839)
- Protobothrops xiangchengensis (ZHAO, JIANG & HUANG, 1978)
- Psammobates oculifer (KUHL, 1820)
- Psammodromus algirus (LINNAEUS, 1758)
- Psammodromus blanci (LATASTE, 1880)
- Psammodynastes pulverulentus (BOIE, 1827)
- Psammophilus blanfordanus (STOLICZKA, 1871)
- Psammophilus dorsalis (GRAY, 1831)
- Psammophis aegyptius MARX, 1958
- Psammophis angolensis (BOCAGE, 1872)
- Psammophis condanarus (MERREM, 1820)
- Psammophis indochinensis SMITH, 1943
- Psammophis jallae PERACCA, 1896
- Psammophis lineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Psammophis lineolatus (BRANDT, 1838)
- Psammophis longifrons BOULENGER, 1890
- Psammophis mossambicus PETERS, 1882
- Psammophis orientalis BROADLEY, 1977
- Psammophis phillipsii (HALLOWELL, 1844)
- Psammophis schokari (FORSKÅL, 1775)
- Psammophis sibilans (LINNAEUS, 1758)
- Psammophis subtaeniatus PETERS, 1882
- Psammophylax tritaeniatus (GÜNTHER, 1868)
- Psammophylax variabilis GÜNTHER, 1893
- Pseudagkistrodon rudis (BOULENGER, 1906)
- Pseudalsophis elegans (TSCHUDI, 1845)
- Pseudaspis cana (LINNAEUS, 1758)
- Pseudechis australis (GRAY, 1842)
- Pseudechis weigeli (WELLS & WELLINGTON, 1987)
- Pseudelaphe flavirufa (COPE, 1867)
- Pseudemys concinna (LE CONTE, 1830)
- Pseudemys gorzugi WARD, 1984
- Pseudemys nelsoni CARR, 1938
- Pseuderemias erythrosticta (BOULENGER, 1891)
- Pseudoboa neuwiedii (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudoboa nigra (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudoboodon lemniscatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudocalotes kakhienensis (ANDERSON, 1879)
- Pseudocerastes persicus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudoeryx plicatilis (LINNAEUS, 1758)
- Pseudoficimia frontalis (COPE, 1864)
- Pseudohaje nigra GÜNTHER, 1858
- Pseudopus apodus (PALLAS, 1775)
- Pseudorabdion longiceps (CANTOR, 1847)
- Pseudorabdion mcnamarae (TAYLOR, 1917)
- Pseudorabdion oxycephalum (GÜNTHER, 1858)
- Pseudotrapelus tuwaiqensis TAMAR, UVIZL, SHOBRAK, ALMUTAIRI, BUSAIS, SALIM, ALGETHAMI, ALGETHAMI, ALANAZI, ALSUBAIE, CHIRIO, CARRANZA, ŠMÍD, 2023
- Pseudoxyrhopus microps GÜNTHER, 1881
- Psychosaura agmosticha (RODRIGUES, 2000)
- Psychosaura macrorhyncha (HOGE, 1946)
- Ptenopus kochi HAACKE, 1964
- Ptyas korros (SCHLEGEL, 1837)
- Ptyas mucosa (LINNAEUS, 1758)
- Ptyctolaemus gularis (PETERS, 1864)
- Ptyodactylus guttatus HEYDEN, 1827
- Ptyodactylus siphonorhina ANDERSON, 1896
- Python bivittatus KUHL, 1820
- Python molurus (LINNAEUS, 1758)
- Python regius (SHAW, 1802)
- Python sebae (GMELIN, 1789)
- Quedenfeldtia trachyblepharus (BOETTGER, 1874)
- Ramphotyphlops depressus PETERS, 1880
- Ramphotyphlops lineatus (SCHLEGEL, 1839)
- Ramphotyphlops willeyi (BOULENGER, 1900)
- Rankinia diemensis (GRAY, 1841)
- Regina grahamii BAIRD & GIRARD, 1853
- Regina septemvittata (SAY, 1825)
- Rena dulcis BAIRD & GIRARD, 1853
- Rena humilis BAIRD & GIRARD, 1853
- Rhabdophis auriculatus (GÜNTHER, 1858)
- Rhabdophis chrysargos (SCHLEGEL, 1837)
- Rhabdophis himalayanus (GÜNTHER, 1864)
- Rhabdophis nigrocinctus (BLYTH, 1856)
- Rhabdophis nuchalis (BOULENGER, 1891)
- Rhabdophis plumbicolor (CANTOR, 1839)
- Rhabdophis rhodomelas (BOIE, 1827)
- Rhabdophis subminiatus (SCHLEGEL, 1837)
- Rhabdophis swinhonis (GÜNTHER, 1868)
- Rhabdophis tigrinus (BOIE, 1826)
- Rhabdops olivaceus (BEDDOME, 1863)
- Rhadinaea cuneata MYERS, 1974
- Rhadinaea decorata (GÜNTHER, 1858)
- Rhadinaea flavilata (COPE, 1871)
- Rhadinaea hesperia BAILEY, 1940
- Rhadinaea laureata (GÜNTHER, 1868)
- Rhadinaea taeniata (PETERS, 1863)
- Rhadinella godmani (GÜNTHER, 1865)
- Rhadinella kinkelini (BOETTGER, 1898)
- Rhamnophis aethiopissa GÜNTHER, 1862
- Rhamnophis batesii (BOULENGER, 1908)
- Rhamphiophis maradiensis CHIRIO & INEICH, 1991
- Rhamphiophis oxyrhynchus (REINHARDT, 1843)
- Rhamphiophis rostratus PETERS, 1854
- Rhampholeon bombayi HUGHES, DEHLING, MENEGON, KUSAMBA & GREENBAUM, 2024
- Rhampholeon plumptrei HUGHES, BEHANGANA, TILBURY, MENEGON, KUSAMBA, & GREENBAUM, 2024
- Rhampholeon spectrum (BUCHHOLZ, 1874)
- Rhinocheilus lecontei BAIRD & GIRARD, 1853
- Rhinoclemmys areolata (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Rhinoclemmys pulcherrima (GRAY, 1855)
- Rhinoclemmys punctularia (DAUDIN, 1801)
- Rhinophis dinarzardae GOWER, SAMPAIO, VIDANAPATHIRANA & WICKRAMASINGHE, 2024
- Rhinophis oxyrhynchus (SCHNEIDER, 1801)
- Rhinotyphlops unitaeniatus (PETERS, 1878)
- Rhoptropus afer PETERS, 1869
- Rhynchocalamus hejazicus LICATA, POLA, ŠMÍD, IBRAHIM, LIZ, SANTOS, PATKÓ, ABDULKAREEM, GONÇALVES, ALSHAMMARI, BUSAIS, EGAN, RAMALHO, SMITHSON & BRITO, 2024
- Rhynchocalamus melanocephalus (JAN, 1862)
- Riama striata (PETERS, 1863)
- Rieppeleon brevicaudatus (MATSCHIE, 1892)
- Rieppeleon kerstenii (PETERS, 1868)
- Riolama leucosticta (BOULENGER, 1900)
- Riopa albopunctata GRAY, 1846
- Riopa lineolata STOLICZKA, 1870
- Riopa punctata (LINNAEUS, 1758)
- Rodriguesophis chui (RODRIGUES, 1993)
- Rodriguesophis iglesiasi (GOMES, 1915)
- Saara hardwickii (GRAY, 1827)
- Sacalia quadriocellata (SIEBENROCK, 1903)
- Sahyadriophis beddomei (GÜNTHER, 1864)
- Saltuarius cornutus (OGILBY, 1892)
- Saltuarius moritzi COUPER, SADLIER, SHEA & WORTHINGTON-WILMER, 2008
- Saltuarius salebrosus (COVACEVICH, 1975)
- Salvadora bairdi JAN, 1860
- Salvadora grahamiae BAIRD & GIRARD, 1853
- Salvadora hexalepis (COPE, 1867)
- Salvadora mexicana (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Salvator merianae DUMÉRIL & BIBRON, 1839
- Sauromalus ater DUMÉRIL, 1856
- Scaphiodontophis annulatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Scaphiophis albopunctatus PETERS, 1870
- Scelarcis perspicillata (DUMÉRIL & BIBRON, 1839)
- Sceloporus acanthinus BOCOURT, 1873
- Sceloporus aeneus WIEGMANN, 1828
- Sceloporus albiventris SMITH, 1939
- Sceloporus aurantius GRUMMER & BRYSON, 2014
- Sceloporus becki VAN DENBURGH, 1905
- Sceloporus bimaculosus PHELAN & BRATTSTROM, 1955
- Sceloporus carinatus SMITH, 1936
- Sceloporus chrysostictus COPE, 1866
- Sceloporus clarkii BAIRD & GIRARD, 1852
- Sceloporus consobrinus BAIRD & GIRARD, 1854
- Sceloporus couchii BAIRD, 1859
- Sceloporus cowlesi LOWE & NORRIS, 1956
- Sceloporus cyanogenys COPE, 1885
- Sceloporus cyanostictus AXTELL & AXTELL, 1971
- Sceloporus dugesii BOCOURT, 1874
- Sceloporus formosus WIEGMANN, 1834
- Sceloporus gadsdeni CASTAÑEDA-GAYTÁN & DÍAZ-CÁRDENAS, 2017
- Sceloporus goldmani SMITH, 1937
- Sceloporus graciosus BAIRD & GIRARD, 1852
- Sceloporus grammicus WIEGMANN, 1828
- Sceloporus horridus WIEGMANN, 1834
- Sceloporus jarrovii COPE, 1875
- Sceloporus licki VAN DENBURGH, 1895
- Sceloporus lineatulus DICKERSON, 1919
- Sceloporus lundelli SMITH, 1939
- Sceloporus maculosus SMITH, 1934
- Sceloporus magister HALLOWELL, 1854
- Sceloporus malachiticus COPE, 1864
- Sceloporus marmoratus HALLOWELL, 1852
- Sceloporus megalepidurus SMITH, 1934
- Sceloporus melanorhinus BOCOURT, 1876
- Sceloporus merriami STEJNEGER, 1904
- Sceloporus minor COPE, 1885
- Sceloporus mucronatus COPE, 1885
- Sceloporus occidentalis BAIRD & GIRARD, 1852
- Sceloporus ochoterenae SMITH, 1934
- Sceloporus olivaceus SMITH, 1934
- Sceloporus olloporus SMITH, 1937
- Sceloporus orcutti STEJNEGER, 1893
- Sceloporus ornatus BAIRD, 1859
- Sceloporus palaciosi LARA-GONGORA, 1983
- Sceloporus parvus SMITH, 1934
- Sceloporus poinsettii BAIRD & GIRARD, 1852
- Sceloporus pyrocephalus COPE, 1864
- Sceloporus samcolemani SMITH & HALL, 1974
- Sceloporus scalaris WIEGMANN, 1828
- Sceloporus serrifer COPE, 1866
- Sceloporus siniferus COPE, 1870
- Sceloporus slevini SMITH, 1937
- Sceloporus spinosus WIEGMANN, 1828
- Sceloporus squamosus BOCOURT, 1874
- Sceloporus stejnegeri SMITH, 1942
- Sceloporus subniger POGLAYEN & SMITH, 1958
- Sceloporus subpictus LYNCH & SMITH, 1965
- Sceloporus sugillatus SMITH, 1942
- Sceloporus taeniocnemis COPE, 1885
- Sceloporus teapensis GÜNTHER, 1890
- Sceloporus torquatus WIEGMANN, 1828
- Sceloporus tristichus COPE, 1875
- Sceloporus undulatus (BOSC & DAUDIN, 1801)
- Sceloporus vandenburgianus COPE, 1896
- Sceloporus variabilis WIEGMANN, 1834
- Sceloporus virgatus SMITH, 1938
- Sceloporus zosteromus COPE, 1863
- Scincella alia BRAGIN, ZENIN, NGUYEN & POYARKOV, 2025
- Scincella assata (COPE, 1864)
- Scincella cherriei (COPE, 1893)
- Scincella doriae (BOULENGER, 1887)
- Scincella fansipanensis OKABE, MOTOKAWA, KOIZUMI, NGUYEN, NGUYEN, & BUI, 2024
- Scincella gemmingeri (COPE, 1864)
- Scincella lateralis (SAY, 1822)
- Scincella macrotis (STEINDACHNER, 1867)
- Scincella melanosticta (BOULENGER, 1887)
- Scincella modesta (GÜNTHER, 1864)
- Scincella montana VALDENEGRO-BRITO, ESAÚ, DE LA VEGA-PÉREZ & GARCÍA-VÁZQUEZ, 2025
- Scincella reevesii (GRAY, 1839)
- Scincella wangyuezhaoi JIA, GAO, HUANG, REN, JIANG & LI, 2023
- Scincus mitranus ANDERSON, 1871
- Scincus scincus (LINNAEUS, 1758)
- Seminatrix pygaea (COPE, 1871)
- Senticolis triaspis (COPE, 1866)
- Sibon annulatus (GÜNTHER, 1872)
- Sibon canopy ARTEAGA & BATISTA, 2023
- Sibon dimidiatus (GÜNTHER, 1872)
- Sibon irmelindicaprioae ARTEAGA & BATISTA, 2023
- Sibon longifrenis (STEJNEGER, 1909)
- Sibon nebulatus (LINNAEUS, 1758)
- Sibynophis sagittarius (CANTOR, 1839)
- Sibynophis subpunctatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Siderolamprus enneagrammus COPE, 1861
- Siebenrockiella crassicollis (GRAY, 1831)
- Silvascincus murrayi (BOULENGER, 1887)
- Simophis rhinostoma (SCHLEGEL, 1837)
- Simoselaps anomalus (STERNFELD, 1919)
- Sinomicrurus annularis (GÜNTHER, 1864)
- Sinomicrurus iwasakii (MAKI, 1935)
- Sinomicrurus macclellandi (REINHARDT, 1844)
- Siphlophis cervinus (LAURENTI, 1768)
- Siphlophis compressus (DAUDIN, 1803)
- Sistrurus catenatus (RAFINESQUE, 1818)
- Sistrurus miliarius (LINNAEUS, 1766)
- Sistrurus tergeminus (SAY, 1823)
- Sitana ponticeriana CUVIER, 1829
- Smithophis bicolor (BLYTH, 1855)
- Sonora semiannulata BAIRD & GIRARD, 1853
- Sordellina punctata (PETERS, 1880)
- Spalerosophis diadema (SCHLEGEL, 1837)
- Spalerosophis microlepis JAN, 1865
- Sphaerodactylus alphus MCCRANIE & HEDGES, 2013
- Sphaerodactylus fantasticus DUMÉRIL & BIBRON, 1836
- Sphaerodactylus glaucus COPE, 1866
- Sphaerodactylus grandisquamis STEJNEGER, 1904
- Sphaerodactylus leonardovaldesi MCCRANIE & HEDGES, 2012
- Sphaerodactylus macrolepis GÜNTHER, 1859
- Sphenodon punctatus (GRAY, 1842)
- Sphenomorphus annamiticus (BOETTGER, 1901)
- Sphenomorphus anomalopus (BOULENGER, 1890)
- Sphenomorphus haasi INGER & HOSMER, 1965
- Sphenomorphus indicus (GRAY, 1853)
- Sphenomorphus jobiensis (MEYER, 1874)
- Sphenomorphus maculatus (BLYTH, 1853)
- Sphenomorphus minutus (MEYER, 1874)
- Sphenomorphus praesignis (BOULENGER, 1900)
- Sphenomorphus scotophilus (BOULENGER, 1900)
- Sphenomorphus senja GRISMER & QUAH, 2015
- Sphenomorphus solomonis (BOULENGER, 1887)
- Sphenomorphus stellatus (BOULENGER, 1900)
- Sphenomorphus variegatus (PETERS, 1867)
- Spilotes pullatus (LINNAEUS, 1758)
- Spilotes sulphureus (WAGLER, 1824)
- Spondylurus culebrae HEDGES & CONN, 2012
- Spondylurus monae HEDGES & CONN, 2012
- Spondylurus sloanii (DAUDIN, 1803)
- Staurotypus salvinii GRAY, 1864
- Staurotypus triporcatus (WIEGMANN, 1828)
- Stegonotus borneensis INGER, 1967
- Stegonotus muelleri DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Stenocercus cadlei TORRES-CARVAJAL & MAFLA-ENDARA, 2013
- Stenocercus caducus (COPE, 1863)
- Stenocercus formosus (TSCHUDI, 1845)
- Stenocercus leybachi VENEGAS, GARCÍA-AYACHI, CHÁVEZ-ARRIBASPLATA & GARCÍA-BRAVO, 2022
- Stenocercus variabilis BOULENGER, 1901
- Stenodactylus doriae (BLANFORD, 1874)
- Stenorrhina degenhardtii (BERTHOLD, 1846)
- Stenorrhina freminvillei (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Sternotherus carinatus (GRAY, 1856)
- Sternotherus minor (AGASSIZ, 1857)
- Sternotherus odoratus (LATREILLE, 1802)
- Stigmochelys pardalis (BELL, 1828)
- Storeria dekayi (HOLBROOK, 1839)
- Storeria occipitomaculata (STORER, 1839)
- Storeria storerioides (COPE, 1866)
- Subdoluseps bowringii (GÜNTHER, 1864)
- Subdoluseps herberti (SMITH, 1916)
- Subsessor bocourti (JAN, 1865)
- Suta dwyeri (WORRELL, 1956)
- Suta nigriceps (GÜNTHER, 1863)
- Suta suta (PETERS, 1863)
- Tachymenis peruviana WIEGMANN, 1834
- Taeniophallus brevirostris (PETERS, 1863)
- Takydromus amurensis PETERS, 1881
- Takydromus formosanus BOULENGER, 1894
- Takydromus septentrionalis GÜNTHER, 1864
- Takydromus sexlineatus DAUDIN, 1802
- Takydromus smaragdinus BOULENGER, 1887
- Takydromus sylvaticus (POPE, 1928)
- Takydromus tachydromoides (SCHLEGEL, 1838)
- Tantilla atriceps (GÜNTHER, 1895)
- Tantilla bocourti (GÜNTHER, 1895)
- Tantilla hobartsmithi TAYLOR, 1937
- Tantilla melanocephala (LINNAEUS, 1758)
- Tantilla nigriceps KENNICOTT, 1860
- Tantilla planiceps (BLAINVILLE, 1835)
- Tantilla rubra COPE, 1875
- Tantilla selmae AZEVEDO, FRANCO, MENEZES, SARAIVA-KUNZ & GRAZZIOTIN, 2024
- Tantilla wilcoxi STEJNEGER, 1902
- Tarentola americana (GRAY, 1831)
- Tarentola annularis (GEOFFROY SAINT-HILAIRE, 1827)
- Tarentola boavistensis JOGER, 1993
- Tarentola boettgeri STEINDACHNER, 1891
- Tarentola caboverdiana SCHLEICH, 1984
- Tarentola fascicularis (DAUDIN, 1802)
- Tarentola gigas (BOCAGE, 1875)
- Tarentola mauritanica (LINNAEUS, 1758)
- Tarentola protogigas JOGER, 1984
- Teira dugesii (MILNE-EDWARDS, 1829)
- Telescopus dhara (FORSKÅL, 1775)
- Telescopus fallax FLEISCHMANN, 1831
- Telescopus pulcher (SCORTECCI, 1935)
- Telescopus semiannulatus SMITH, 1849
- Telescopus somalicus (PARKER, 1949)
- Telescopus tripolitanus (WERNER, 1909)
- Telescopus variegatus (REINHARDT, 1843)
- Tenuidactylus caspius (EICHWALD, 1831)
- Tenuidactylus elongatus (BLANFORD, 1875)
- Tenuidactylus longipes (NIKOLSKY, 1896)
- Tenuidactylus turcmenicus (SZCZERBAK, 1978)
- Teratoscincus bedriagai NIKOLSKY, 1900
- Teratoscincus przewalskii STRAUCH, 1887
- Teratoscincus scincus (SCHLEGEL, 1858)
- Terrapene carolina (LINNAEUS, 1758)
- Terrapene nelsoni STEJNEGER, 1925
- Terrapene ornata (AGASSIZ, 1857)
- Testudo graeca LINNAEUS, 1758
- Testudo hermanni GMELIN, 1789
- Testudo horsfieldii GRAY, 1844
- Testudo kleinmanni LORTET, 1883
- Testudo marginata SCHOEPFF, 1792
- Thamnodynastes pallidus (LINNAEUS, 1758)
- Thamnophis atratus KENNICOTT, 1860
- Thamnophis brachystoma (COPE, 1892)
- Thamnophis cyrtopsis (KENNICOTT, 1860)
- Thamnophis elegans (BAIRD & GIRARD, 1853)
- Thamnophis eques (REUSS, 1834)
- Thamnophis fulvus (BOCOURT, 1893)
- Thamnophis hammondii (KENNICOTT, 1860)
- Thamnophis marcianus (BAIRD & GIRARD, 1853)
- Thamnophis melanogaster (PETERS, 1864)
- Thamnophis ordinoides (BAIRD & GIRARD, 1852)
- Thamnophis proximus (SAY, 1823)
- Thamnophis pulchrilatus (COPE, 1885)
- Thamnophis radix (BAIRD & GIRARD, 1853)
- Thamnophis rufipunctatus (COPE, 1875)
- Thamnophis saurita (LINNAEUS, 1766)
- Thamnophis scalaris COPE, 1861
- Thamnophis scaliger (JAN, 1863)
- Thamnophis sirtalis (LINNAEUS, 1758)
- Thamnophis sumichrasti (COPE, 1866)
- Thamnophis validus (KENNICOTT, 1860)
- Thamnosophis lateralis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Thecadactylus rapicauda (HOUTTUYN, 1782)
- Thelotornis kirtlandii (HALLOWELL, 1844)
- Thelotornis mossambicanus (BOCAGE, 1895)
- Thrasops jacksonii GÜNTHER, 1895
- Thrasops occidentalis PARKER, 1940
- Tiliqua gigas (SCHNEIDER, 1801)
- Tiliqua multifasciata STERNFELD, 1919
- Tiliqua rugosa (GRAY, 1825)
- Tiliqua scincoides (WHITE, 1790)
- Timon lepidus (DAUDIN, 1802)
- Toenayar novemcarinata (ANDERSON, 1871)
- Tomistoma schlegelii (MÜLLER, 1838)
- Tomodon dorsatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Toxicocalamus atratus KRAUS, KAISER & O’SHEA, 2022
- Toxicocalamus loennbergii (BOULENGER, 1908)
- Toxicocalamus loriae (BOULENGER, 1898)
- Toxicocalamus nymani (LÖNNBERG, 1900)
- Toxicocalamus vertebralis KRAUS, KAISER & O’SHEA, 2022
- Toxicodryas blandingii (HALLOWELL, 1844)
- Toxicodryas pulverulenta (FISCHER, 1856)
- Trachemys adiutrix VANZOLINI, 1995
- Trachemys callirostris (GRAY, 1855)
- Trachemys decussata (GRAY, 1831)
- Trachemys dorbigni (DUMÉRIL & BIBRON, 1835)
- Trachemys nebulosa (VAN DENBURGH, 1895)
- Trachemys ornata (GRAY, 1831)
- Trachemys scripta (THUNBERG, 1792)
- Trachemys taylori (LEGLER, 1960)
- Trachemys venusta (GRAY, 1856)
- Trachylepis acutilabris (PETERS, 1862)
- Trachylepis attenboroughi CERÍACO, MARQUES, PARRINHA, TIUTENKO, WEINELL, BUTLER & BAUER, 2024
- Trachylepis bouri CERÍACO, MARQUES, PARRINHA, TIUTENKO, WEINELL, BUTLER & BAUER, 2024
- Trachylepis brevicollis (WIEGMANN, 1837)
- Trachylepis buettneri (MATSCHIE, 1893)
- Trachylepis farooqii BARBOSA, PARRINHA, MARQUES, HARUN, SOUSA-RECODER, SENA, BILA, INEICH, FERNANDES, PASSOS, RODRIGUES & CERÍACO, 2025
- Trachylepis maculilabris (GRAY, 1845)
- Trachylepis margaritifer (PETERS, 1854)
- Trachylepis megalura (PETERS, 1878)
- Trachylepis notabilis (PETERS, 1879)
- Trachylepis ovahelelo CERÍACO, MARQUES, PARRINHA, TIUTENKO, WEINELL, BUTLER & BAUER, 2024
- Trachylepis perrotetii (DUMÉRIL & BIBRON, 1839)
- Trachylepis planifrons (PETERS, 1878)
- Trachylepis punctulata (BOCAGE, 1872)
- Trachylepis quinquetaeniata (LICHTENSTEIN, 1823)
- Trachylepis spilogaster (PETERS, 1882)
- Trachylepis striata (PETERS, 1844)
- Trachylepis thomensis CERÍACO, MARQUES & BAUER, 2016
- Trachylepis varia (PETERS, 1867)
- Trachylepis wahlbergii (PETERS, 1870)
- Trachylepis wilsoni CERÍACO, MARQUES, PARRINHA, TIUTENKO, WEINELL, BUTLER & BAUER, 2024
- Trapelus agilis (OLIVIER, 1807)
- Trapelus flavimaculatus RÜPPELL, 1835
- Trapelus mutabilis (MERREM, 1820)
- Tretanorhinus nigroluteus COPE, 1861
- Tretanorhinus variabilis DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Tretioscincus bifasciatus (DUMÉRIL, 1851)
- Tribolonotus novaeguineae (SCHLEGEL, 1834)
- Tricheilostoma bicolor (JAN, 1860)
- Tricheilostoma broadleyi (WALLACH & HAHN, 1997)
- Tricheilostoma sundewalli (JAN, 1862)
- Trilepida anthracina (BAILEY, 1946)
- Trilepida brasiliensis (LAURENT, 1949)
- Trilepida salgueiroi (AMARAL, 1955)
- Trimeresurus albolabris GRAY, 1842
- Trimeresurus flavomaculatus (GRAY, 1842)
- Trimeresurus mcgregori TAYLOR, 1919
- Trimeresurus popeiorum SMITH, 1937
- Trimeresurus purpureomaculatus (GRAY, 1832)
- Trimeresurus sabahi REGENASS & KRAMER, 1981
- Trimeresurus stejnegeri SCHMIDT, 1925
- Trimeresurus uetzi VOGEL, NGUYEN & DAVID, 2023
- Trimerodytes aequifasciatus (BARBOUR, 1908)
- Trimerodytes annularis (HALLOWELL, 1856)
- Trimorphodon biscutatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Trimorphodon tau COPE, 1870
- Trioceros bitaeniatus (FISCHER, 1884)
- Trioceros hoehnelii (STEINDACHNER, 1891)
- Trioceros incornutus (LOVERIDGE, 1932)
- Trioceros ituriensis (SCHMIDT, 1919)
- Trioceros jacksonii (BOULENGER, 1896)
- Trioceros melleri (GRAY, 1865)
- Trioceros oweni (GRAY, 1831)
- Trioceros quadricornis (TORNIER, 1899)
- Trioceros rudis (BOULENGER, 1906)
- Trioceros schubotzi (STERNFELD, 1912)
- Trionyx triunguis (FORSKÅL, 1775)
- Trogonophis wiegmanni KAUP, 1830
- Tropidodipsas fischeri (BOULENGER, 1894)
- Tropidodryas serra (SCHLEGEL, 1837)
- Tropidodryas striaticeps (COPE, 1870)
- Tropidolaemus subannulatus (GRAY, 1842)
- Tropidolaemus wagleri (BOIE, 1827)
- Tropidonophis dendrophiops (GÜNTHER, 1883)
- Tropidonophis doriae (BOULENGER, 1898)
- Tropidonophis mairii (GRAY, 1841)
- Tropidonophis multiscutellatus (BRONGERSMA, 1948)
- Tropidonophis picturatus (SCHLEGEL, 1837)
- Tropidonophis spilogaster (BOIE, 1827)
- Tropidophis bucculentus (COPE, 1868)
- Tropidophis greenwayi BARBOUR & SHREVE, 1936
- Tropidophis haetianus (COPE, 1879)
- Tropidophis maculatus (BIBRON, 1840)
- Tropidophis melanurus (SCHLEGEL, 1837)
- Tropidophorus berdmorei (BLYTH, 1853)
- Tropidophorus brookei (GRAY, 1845)
- Tropidurus hispidus (SPIX, 1825)
- Tropidurus lagunablanca CARVALHO, 2016
- Tropidurus oreadicus RODRIGUES, 1987
- Tropidurus semitaeniatus (SPIX, 1825)
- Tropidurus sertanejo CARVALHO, SENA, PELOSO, MACHADO, MONTESINOS, SILVA, CAMPBELL & RODRIGUES, 2016
- Tropidurus torquatus (WIED-NEUWIED, 1820)
- Tropiocolotes scorteccii CHERCHI & SPANO, 1963
- Tupinambis matipu SILVA, RIBEIRO-JÚNIOR & ÁVILA-PIRES, 2018
- Tupinambis teguixin (LINNAEUS, 1758)
- Tympanocryptis centralis STERNFELD, 1925
- Tympanocryptis lineata PETERS, 1863
- Tympanocryptis macra STORR, 1982
- Tympanocryptis pentalineata MELVILLE, SMITH, HOBSON, HUNJAN & SHOO, 2014
- Tympanocryptis petersi MELVILLE, CHAPLIN, HIPSLEY, SARRE, SUMNER & HUTCHINSON, 2019
- Tympanocryptis pinguicolla MITCHELL, 1948
- Tympanocryptis pseudopsephos DOUGHTY, KEALLEY, SHOO & MELVILLE, 2015
- Tympanocryptis tolleyi MELVILLE, CHAPLIN, HIPSLEY, SARRE, SUMNER & HUTCHINSON, 2019
- Typhlops rostellatus STEJNEGER, 1904
- Tytthoscincus bukitensis (GRISMER, 2007)
- Tytthoscincus butleri (BOULENGER, 1912)
- Tytthoscincus cophias BOULENGER, 1908
- Uma inornata COPE, 1895
- Uma notata BAIRD, 1858
- Uma scoparia COPE, 1894
- Underwoodisaurus milii (BORY DE SAINT-VINCENT, 1823)
- Ungaliophis continentalis MÜLLER, 1880
- Ungaliophis panamensis SCHMIDT, 1933
- Uromastyx aegyptia (FORSKÅL, 1775)
- Uromastyx benti (ANDERSON, 1894)
- Uropeltis shorttii (BEDDOME, 1863)
- Uroplatus ebenaui (BOETTGER, 1879)
- Uroplatus finaritra RATSOAVINA, RASELIMANANA, SCHERZ, RAKOTOARISON, RAZAFINDRAIBE, GLAW & VENCES, 2019
- Uroplatus fivehy RATSOAVINA, GLAW, RASELIMANANA, RAKOTOARISON, VIEITES, HAWLITSCHEK, VENCES & SCHERZ, 2020
- Uroplatus fotsivava RATSOAVINA, GEHRING, SCHERZ, VIEITES, GLAW & VENCES, 2017
- Uroplatus garamaso GLAW, KÖHLER, RATSOAVINA, RASELIMANANA, CROTTINI, GEHRING, BÖHME, SCHERZ & VENCES, 2023
- Uroplatus henkeli BÖHME & IBISCH, 1990
- Uroplatus sikorae BOETTGER, 1913
- Urosaurus bicarinatus (DUMÉRIL, 1856)
- Urosaurus gadovi (SCHMIDT, 1921)
- Urosaurus graciosus HALLOWELL, 1854
- Urosaurus nigricauda (COPE, 1864)
- Urosaurus ornatus (BAIRD & GIRARD, 1852)
- Urostrophus vautieri DUMÉRIL & BIBRON, 1837
- Urotheca lateristriga (BERTHOLD, 1859)
- Urotheca multilineata (PETERS, 1863)
- Uta palmeri STEJNEGER, 1890
- Uta stansburiana BAIRD & GIRARD, 1852
- Uvidicolus sphyrurus (OGILBY, 1892)
- Vanzosaura rubricauda (BOULENGER, 1902)
- Varanus albigularis (DAUDIN, 1802)
- Varanus bengalensis (DAUDIN, 1802)
- Varanus caspius (EICHWALD, 1831)
- Varanus caudolineatus BOULENGER, 1885
- Varanus chlorostigma (GRAY, 1831)
- Varanus douarrha (LESSON, 1829)
- Varanus dumerilii SCHLEGEL, 1839
- Varanus exanthematicus (BOSC, 1792)
- Varanus flavescens (HARDWICKE & GRAY, 1827)
- Varanus gilleni LUCAS & FROST, 1895
- Varanus gouldii (GRAY, 1838)
- Varanus griseus (DAUDIN, 1803)
- Varanus indicus (DAUDIN, 1802)
- Varanus niloticus (LINNAEUS, 1766)
- Varanus nuchalis (GÜNTHER, 1872)
- Varanus olivaceus HALLOWELL, 1857
- Varanus panoptes STORR, 1980
- Varanus pilbarensis STORR, 1980
- Varanus rudicollis (GRAY, 1845)
- Varanus salvator (LAURENTI, 1768)
- Varanus storri MERTENS, 1966
- Varanus varius (SHAW, 1790)
- Vipera ammodytes (LINNAEUS, 1758)
- Vipera aspis (LINNAEUS, 1758)
- Vipera berus (LINNAEUS, 1758)
- Vipera meridionalis BOULENGER, 1903
- Vipera nikolskii VEDMEDERYA, GRUBANT & RUDAJEWA, 1986
- Virginia valeriae BAIRD & GIRARD, 1853
- Walterinnesia aegyptia LATASTE, 1887
- Woodworthia maculata (GRAY, 1845)
- Xantusia bolsonae WEBB, 1970
- Xantusia gracilis GRISMER & GALVAN, 1986
- Xantusia henshawi STEJNEGER, 1893
- Xantusia riversiana COPE, 1883
- Xantusia sanchezi BEZY & FLORES-VILLELA, 1999
- Xantusia sierrae BEZY, 1967
- Xantusia vigilis BAIRD, 1859
- Xantusia wigginsi SAVAGE, 1952
- Xenocalamus bicolor GÜNTHER, 1868
- Xenochrophis trianguligerus (BOIE, 1827)
- Xenodon merremii (WAGLER, 1824)
- Xenodon nattereri (STEINDACHNER, 1867)
- Xenodon neuwiedii GÜNTHER, 1863
- Xenodon rabdocephalus (WIED-NEUWIED, 1824)
- Xenodon semicinctus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Xenodon severus (LINNAEUS, 1758)
- Xenopeltis unicolor REINWARDT, 1827
- Xenopholis scalaris (WUCHERER, 1861)
- Xenosaurus agrenon KING & THOMPSON, 1968
- Xenosaurus grandis (GRAY, 1856)
- Xenosaurus rackhami STUART, 1941
- Xenosaurus sanmartinensis WERLER & SHANNON, 1961
- Xenoxybelis argenteus (DAUDIN, 1803)
- Xerotyphlops vermicularis (MERREM, 1820)
- Xylophis perroteti (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Zamenis longissimus (LAURENTI, 1768)
- Zonosaurus rufipes (BOETTGER, 1881)
- Zootoca vivipara (LICHTENSTEIN, 1823)
- Zygaspis quadrifrons (PETERS, 1862)
- Zygaspis violacea (PETERS, 1854)