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Species found: 938
- Ablepharus deserti STRAUCH, 1868
- Abronia montecristoi HIDALGO, 1983
- Abronia moreletii (BOCOURT, 1872)
- Abronia salvadorensis HIDALGO, 1983
- Acanthocercus atricollis (SMITH, 1849)
- Acanthochelys macrocephala (RHODIN, MITTERMEIER & MCMORRIS, 1984)
- Acanthochelys pallidipectoris (FREIBERG, 1945)
- Acanthochelys radiolata (MIKAN, 1820)
- Acanthochelys spixii (DUMÉRIL & BIBRON, 1835)
- Acanthodactylus cantoris GÜNTHER, 1864
- Actinemys marmorata (BAIRD & GIRARD, 1852)
- Actinemys pallida (SEELIGER, 1945)
- Adelphicos newmanorum TAYLOR, 1950
- Adolfus africanus (BOULENGER, 1906)
- Agama africana (HALLOWELL, 1844)
- Agama agama (LINNAEUS, 1758)
- Agama boensis MONARD, 1940
- Agkistrodon conanti GLOYD, 1969
- Agkistrodon contortrix (LINNAEUS, 1766)
- Agkistrodon laticinctus GLOYD & CONANT, 1934
- Agkistrodon piscivorus (LACÉPÈDE, 1789)
- Aldabrachelys gigantea (SCHWEIGGER, 1812)
- Ameiva ameiva (LINNAEUS, 1758)
- Ameiva fuliginosa (COPE, 1892)
- Amyda cartilaginea (BODDAERT, 1770)
- Amyda ornata (GRAY, 1861)
- Ancylodactylus dickersonae (SCHMIDT, 1919)
- Anniella pulchra GRAY, 1852
- Anolis allisoni BARBOUR, 1928
- Anolis amplisquamosus (MCCRANIE, WILSON & WILLIAMS, 1993)
- Anolis angusticeps HALLOWELL, 1856
- Anolis beckeri BOULENGER, 1881
- Anolis bicaorum (KÖHLER, 1996)
- Anolis biporcatus (WIEGMANN, 1834)
- Anolis brevirostris BOCOURT, 1870
- Anolis callainus KÖHLER & HEDGES, 2020
- Anolis capito PETERS, 1863
- Anolis carolinensis VOIGT, 1832
- Anolis carpenteri ECHELLE, ECHELLE & FITCH, 1971
- Anolis crassulus COPE, 1864
- Anolis cristatellus DUMÉRIL & BIBRON, 1837
- Anolis cupreus HALLOWELL, 1860
- Anolis cusuco (MCCRANIE, KÖHLER & WILSON, 2000)
- Anolis cybotes COPE, 1862
- Anolis distichus COPE, 1861
- Anolis doris BARBOUR, 1925
- Anolis equestris MERREM, 1820
- Anolis garmani STEJNEGER, 1899
- Anolis heteropholidotus MERTENS, 1952
- Anolis johnmeyeri WILSON & MCCRANIE, 1982
- Anolis kreutzi (MCCRANIE, KÖHLER & WILSON, 2000)
- Anolis laeviventris (WIEGMANN, 1834)
- Anolis lemurinus COPE, 1861
- Anolis limifrons COPE, 1862
- Anolis loveridgei SCHMIDT, 1936
- Anolis mccraniei (KÖHLER, TOWNSEND & PETERSEN, 2016)
- Anolis morazani TOWNSEND & WILSON, 2009
- Anolis muralla (KÖHLER, MCCRANIE & WILSON, 1999)
- Anolis nebulosus (WIEGMANN, 1834)
- Anolis nelsoni BARBOUR, 1914
- Anolis ocelloscapularis (KÖHLER, MCCRANIE & WILSON, 2001)
- Anolis oxylophus COPE, 1875
- Anolis petersii BOCOURT, 1873
- Anolis pijolensis (MCCRANIE, WILSON & WILLIAMS, 1993)
- Anolis porcatus GRAY, 1840
- Anolis purpurgularis (MCCRANIE, CRUZ & HOLM, 1993)
- Anolis quaggulus COPE, 1885
- Anolis ravifaux SCHWARTZ & HENDERSON, 1982
- Anolis roatanensis (KÖHLER & MCCRANIE, 2001)
- Anolis rodriguezii BOCOURT, 1873
- Anolis rubribarbaris (KÖHLER, MCCRANIE & WILSON, 1999)
- Anolis sagrei DUMÉRIL & BIBRON, 1837
- Anolis smallwoodi SCHWARTZ, 1964
- Anolis smaragdinus BARBOUR & SHREVE, 1935
- Anolis sminthus DUNN & EMLEN, 1932
- Anolis uniformis COPE, 1885
- Anolis unilobatus KÖHLER & VESELY, 2010
- Anolis utilensis (KÖHLER, 1996)
- Anolis wampuensis (MCCRANIE & KÖHLER, 2001)
- Anolis wellbornae AHL, 1940
- Anolis wermuthi (KÖHLER & OBERMEIER, 1998)
- Anolis wilsoni (KÖHLER, TOWNSEND & PETERSEN, 2016)
- Anolis yoroensis (MCCRANIE, NICHOLSON & KÖHLER, 2001)
- Anolis zeus (KÖHLER & MCCRANIE, 2001)
- Apalone ferox (SCHNEIDER, 1783)
- Apalone mutica (LESUEUR, 1827)
- Apalone spinifera (LESUEUR, 1827)
- Aprasia clairae MARYAN, HOW & ADAMS, 2013
- Aristelliger nelsoni BARBOUR, 1914
- Aristelliger praesignis (HALLOWELL, 1856)
- Arizona elegans KENNICOTT, 1859
- Aspidoscelis burti (TAYLOR, 1938)
- Aspidoscelis costatus (COPE, 1878)
- Aspidoscelis deppii (WIEGMANN, 1834)
- Aspidoscelis dixoni (SCUDDAY, 1973)
- Aspidoscelis exsanguis (LOWE, 1956)
- Aspidoscelis gularis (BAIRD & GIRARD, 1852)
- Aspidoscelis hyperythrus (COPE, 1863)
- Aspidoscelis inornatus (BAIRD, 1859)
- Aspidoscelis laredoensis (MCKINNEY, KAY & ANDERSON, 1973)
- Aspidoscelis marmoratus (BAIRD & GIRARD, 1852)
- Aspidoscelis motaguae (SACKETT, 1941)
- Aspidoscelis neomexicanus (LOWE & ZWEIFEL, 1952)
- Aspidoscelis neotesselatus (WALKER, CORDES & TAYLOR, 1997)
- Aspidoscelis pai (WRIGHT & LOWE, 1993)
- Aspidoscelis scalaris (COPE, 1892)
- Aspidoscelis sexlineatus (LINNAEUS, 1766)
- Aspidoscelis sonorae (LOWE & WRIGHT, 1964)
- Aspidoscelis stictogrammus (BURGER, 1950)
- Aspidoscelis tesselatus (SAY, 1822)
- Aspidoscelis tigris (BAIRD & GIRARD, 1852)
- Aspidoscelis uniparens (WRIGHT & LOWE, 1965)
- Aspidoscelis velox (SPRINGER, 1928)
- Aspidoscelis xanthonotus (DUELLMAN & LOWE, 1953)
- Astrochelys radiata (SHAW, 1802)
- Astrochelys yniphora (VAILLANT, 1885)
- Atractus gaigeae (SAVAGE, 1955)
- Atractus microrhynchus (COPE, 1868)
- Barisia levicollis STEJNEGER, 1890
- Basiliscus plumifrons COPE, 1875
- Basiliscus vittatus WIEGMANN, 1828
- Batagur affinis (CANTOR, 1847)
- Batagur baska (GRAY, 1831)
- Batagur borneoensis (SCHLEGEL & MÜLLER, 1844)
- Batagur dhongoka (GRAY, 1834)
- Batagur kachuga (GRAY, 1831)
- Batagur trivittata (DUMÉRIL & BIBRON, 1835)
- Bipes canaliculatus LATREILLE, 1801
- Boa constrictor LINNAEUS, 1758
- Boa imperator DAUDIN, 1803
- Bogertophis rosaliae (MOCQUARD, 1899)
- Bogertophis subocularis (BROWN, 1902)
- Broadleysaurus major (DUMÉRIL, 1851)
- Caiman crocodilus (LINNAEUS, 1758)
- Callisaurus draconoides BLAINVILLE, 1835
- Calotes mystaceus DUMÉRIL & BIBRON, 1837
- Calotes versicolor (DAUDIN, 1802)
- Caretta caretta (LINNAEUS, 1758)
- Carettochelys insculpta RAMSAY, 1886
- Carphophis amoenus (SAY, 1825)
- Carphophis vermis (KENNICOTT, 1859)
- Cemophora coccinea (BLUMENBACH, 1788)
- Cemophora lineri WILLIAMS, BROWN & WILSON, 1966
- Centrochelys sulcata (MILLER, 1779)
- Cerrophidion godmani (GÜNTHER, 1863)
- Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851
- Chamaeleo dilepis LEACH, 1819
- Chamaeleo gracilis HALLOWELL, 1844
- Chamaeleo laevigatus GRAY, 1863
- Chamaesaura macrolepis (COPE, 1862)
- Charina bottae (BLAINVILLE, 1835)
- Charina umbratica KLAUBER, 1943
- Chelodina burrungandjii THOMSON, KENNETT & GEORGES, 2000
- Chelodina canni MCCORD & THOMSON, 2002
- Chelodina expansa GRAY, 1857
- Chelodina gunaleni MCCORD & JOSEPH-OUNI, 2007
- Chelodina ipudinapi JOSEPH-OUNI & MCCORD, 2022
- Chelodina kuchlingi CANN, 1997
- Chelodina kurrichalpongo (JOSEPH-OUNI, MCCORD, CANN & SMALES, 2019)
- Chelodina longicollis (SHAW, 1794)
- Chelodina mccordi RHODIN, 1994
- Chelodina novaeguineae BOULENGER, 1888
- Chelodina oblonga GRAY, 1841
- Chelodina parkeri RHODIN & MITTERMEIER, 1976
- Chelodina pritchardi RHODIN, 1994
- Chelodina reimanni PHILIPPEN & GROSSMANN, 1990
- Chelodina rugosa OGILBY, 1889
- Chelodina steindachneri SIEBENROCK, 1914
- Chelodina walloyarrina MCCORD & JOSEPH-OUNI, 2007
- Chelonia mydas (LINNAEUS, 1758)
- Chelonoidis carbonarius (SPIX, 1824)
- Chelonoidis chilensis (GRAY, 1870)
- Chelonoidis denticulatus (LINNAEUS, 1766)
- Chelonoidis niger (QUOY & GAIMARD, 1824)
- Chelus fimbriata (SCHNEIDER, 1783)
- Chelus orinocensis VARGAS-RAMÍREZ, CABALLERO, MORALES-BETANCOURT, LASSO, AMAYA, MARTÎNEZ, SILVA-VIANA, VOGT, PIRES-FARIAS, HRBEK, CAMPBELL & FRITZ, 2020
- Chelydra acutirostris PETERS, 1862
- Chelydra rossignonii (BOCOURT, 1868)
- Chelydra serpentina (LINNAEUS, 1758)
- Chersina angulata (SCHWEIGGER, 1812)
- Chersobius boulengeri (DUERDEN, 1906)
- Chersobius signatus (GMELIN, 1789)
- Chersobius solus (BRANCH, 2007)
- Chitra chitra NUTAPHAND, 1986
- Chitra indica (GRAY, 1831)
- Chitra vandijki MCCORD & PRITCHARD, 2003
- Chondrodactylus bibronii (SMITH, 1846)
- Chrysemys dorsalis AGASSIZ, 1857
- Chrysemys picta (SCHNEIDER, 1783)
- Claudius angustatus COPE, 1865
- Clemmys guttata (SCHNEIDER, 1792)
- Clonophis kirtlandii (KENNICOTT, 1856)
- Cnemidophorus lemniscatus (LINNAEUS, 1758)
- Cnemidophorus ruatanus BARBOUR, 1928
- Coleonyx brevis STEJNEGER, 1893
- Coleonyx gypsicolus GRISMER & OTTLEY, 1988
- Coleonyx mitratus (PETERS, 1863)
- Coleonyx reticulatus DAVIS & DIXON, 1958
- Coleonyx switaki (MURPHY, 1974)
- Coleonyx variegatus (BAIRD, 1858)
- Coluber constrictor LINNAEUS, 1758
- Congolacerta vauereselli (TORNIER, 1902)
- Coniophanes imperialis (BAIRD & GIRARD, 1859)
- Contia longicaudae FELDMAN & HOYER, 2010
- Contia tenuis (BAIRD & GIRARD, 1852)
- Cophosaurus texanus TROSCHEL, 1852
- Corytophanes cristatus (MERREM, 1820)
- Corytophanes hernandesii (WIEGMANN, 1831)
- Corytophanes percarinatus DUMÉRIL, 1856
- Crocodylus acutus CUVIER, 1807
- Crocodylus johnstoni KREFFT, 1873
- Crocodylus niloticus LAURENTI, 1768
- Crocodylus palustris LESSON, 1831
- Crocodylus porosus SCHNEIDER, 1801
- Crotalus adamanteus PALISOT DE BEAUVOIS, 1799
- Crotalus atrox BAIRD & GIRARD, 1853
- Crotalus cerastes HALLOWELL, 1854
- Crotalus concolor WOODBURY, 1929
- 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 oreganus HOLBROOK, 1840
- Crotalus pricei VAN DENBURGH, 1895
- Crotalus ruber COPE, 1892
- Crotalus scutulatus KENNICOTT, 1861
- Crotalus stephensi KLAUBER, 1930
- Crotalus tigris KENNICOTT, 1859
- Crotalus viridis RAFINESQUE, 1818
- Crotalus willardi MEEK, 1905
- Crotaphytus bicinctores SMITH & TANNER, 1972
- Crotaphytus collaris (SAY, 1822)
- Crotaphytus insularis VAN DENBURGH & SLEVIN, 1921
- Crotaphytus nebrius AXTELL & MONTANUCCI, 1977
- Crotaphytus reticulatus BAIRD, 1858
- Crotaphytus vestigium SMITH & TANNER, 1972
- Ctenosaura bakeri STEJNEGER, 1901
- Ctenosaura flavidorsalis KÖHLER & KLEMMER, 1994
- Ctenosaura macrolopha SMITH, 1972
- Ctenosaura melanosterna BUCKLEY & AXTELL, 1997
- Ctenosaura oedirhina DE QUEIROZ, 1987
- Ctenosaura pectinata (WIEGMANN, 1834)
- Ctenosaura quinquecarinata (GRAY, 1842)
- Ctenosaura similis (GRAY, 1831)
- Cuora amboinensis (DAUDIN, 1801)
- Cuora aurocapitata LUO & ZONG, 1988
- Cuora bourreti OBST & REIMANN, 1994
- Cuora couro (SCHWEIGGER, 1812)
- Cuora cyclornata BLANCK, MCCORD & LE MINH, 2006
- Cuora flavomarginata (GRAY, 1863)
- Cuora galbinifrons BOURRET, 1939
- Cuora lineata (MCCORD & PHILIPPEN, 1998)
- Cuora mccordi ERNST, 1988
- Cuora mouhotii (GRAY, 1862)
- Cuora pani SONG, 1984
- Cuora philippinensis BLANCK, GAILLARD, PROTIVA, WHEATLEY, SHI, LIU, RAY & ANDERS, 2023
- Cuora picturata LEHR, FRITZ & OBST, 1998
- Cuora praschagi BLANCK, GAILLARD, PROTIVA, WHEATLEY, SHI, LIU, RAY & ANDERS, 2023
- Cuora trifasciata (BELL, 1825)
- Cuora yunnanensis (BOULENGER, 1906)
- Cuora zhoui ZHAO, ZHOU & YE, 1990
- Cyclanorbis elegans (GRAY, 1869)
- Cyclanorbis senegalensis (DUMÉRIL & BIBRON, 1835)
- Cyclemys atripons IVERSON & MCCORD, 1997
- Cyclemys dentata (GRAY, 1831)
- Cyclemys enigmatica FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cyclemys fusca FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cyclemys gemeli FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cyclemys oldhamii GRAY, 1863
- Cyclemys pulchristriata FRITZ, GAULKE & LEHR, 1997
- Cycloderma aubryi (DUMÉRIL, 1856)
- Cycloderma frenatum PETERS, 1854
- Deirochelys reticularia (LATREILLE, 1801)
- Dermatemys mawii GRAY, 1847
- Dermochelys coriacea (VANDELLI, 1761)
- Diadophis punctatus (LINNAEUS, 1766)
- Diplometopon zarudnyi NIKOLSKY, 1907
- Dipsosaurus dorsalis (BAIRD & GIRARD, 1852)
- Dogania subplana (GEOFFROY SAINT-HILAIRE, 1809)
- Drymarchon couperi (HOLBROOK, 1842)
- Drymarchon melanurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymobius margaritiferus (SCHLEGEL, 1837)
- Echis carinatus (SCHNEIDER, 1801)
- Elaphe quadrivirgata (BOIE, 1826)
- Elgaria coerulea (WIEGMANN, 1828)
- Elgaria kingii GRAY, 1838
- Elgaria multicarinata (BLAINVILLE, 1835)
- Elgaria panamintina (STEBBINS, 1958)
- Elseya albagula THOMSON, GEORGES & LIMPUS, 2006
- Elseya auramemoria JOSEPH-OUNI & MCCORD & DWYER, 2022
- Elseya branderhorsti (OUWENS, 1914)
- Elseya caelatus JOSEPH-OUNI & MCCORD, 2019
- Elseya dentata (GRAY, 1863)
- Elseya eidolon JOSEPH-OUNI & MCCORD & DWYER, 2022
- Elseya flaviventralis THOMSON & GEORGES, 2016
- Elseya irwini CANN, 1997
- Elseya kalumburu JOSEPH-OUNI, MCCORD & CANN, 2022
- Elseya lavarackorum (WHITE & ARCHER, 1994)
- Elseya nabire JOSEPH-OUNI & MCCORD, 2022
- Elseya novaeguineae (MEYER, 1874)
- Elseya papua JOSEPH-OUNI & MCCORD, 2022
- Elseya rhodini THOMSON, AMEPOU, ANAMIATO & GEORGES, 2015
- Elseya schultzei (VOGT, 1911)
- Elusor macrurus CANN & LEGLER, 1994
- Emydocephalus annulatus KREFFT, 1869
- Emydocephalus ijimae STEJNEGER, 1898
- Emydocephalus orarius NANKIVELL, GOIRAN, HOURSTON, SHINE, RASMUSSEN, THOMSON & SANDERS, 2020
- Emydoidea blandingii (HOLBROOK, 1838)
- Emydura australis (GRAY, 1841)
- Emydura gunaleni SMALES, MCCORD, CANN & JOSEPH-OUNI, 2019
- Emydura macquarii (GRAY, 1830)
- Emydura subglobosa (KREFFT, 1876)
- Emydura tanybaraga CANN, 1997
- Emys orbicularis (LINNAEUS, 1758)
- Emys trinacris FRITZ, FATTIZZO, GUICKING, TRIPEPI, PENNISI, LENK, JOGER & WINK, 2005
- Eretmochelys imbricata (LINNAEUS, 1766)
- Erymnochelys madagascariensis (GRANDIDIER, 1867)
- Erythrolamprus miliaris (LINNAEUS, 1758)
- Eumeces indothalensis KHAN & KHAN, 1997
- Eumeces zarudnyi NIKOLSKY, 1900
- Eutropis multifasciata (KUHL, 1820)
- Farancia abacura (HOLBROOK, 1836)
- Farancia erytrogramma (PALISOT DE BEAUVOIS, 1802)
- Feylinia currori GRAY, 1845
- Feylinia elegans (HALLOWELL, 1854)
- Ficimia streckeri TAYLOR, 1931
- Gambelia copeii (YARROW, 1882)
- Gambelia sila (STEJNEGER, 1890)
- Gambelia wislizenii (BAIRD & GIRARD, 1852)
- Gastropholis echinata (COPE, 1862)
- Gastropholis tropidopholis (BOULENGER, 1916)
- Gavialis gangeticus (GMELIN, 1789)
- Gekko gecko (LINNAEUS, 1758)
- Geochelone elegans (SCHOEPFF, 1795)
- Geochelone platynota (BLYTH, 1863)
- Geoclemys hamiltonii (GRAY, 1831)
- Geoemyda japonica FAN, 1931
- Geoemyda spengleri (GMELIN, 1789)
- Gerrhonotus infernalis BAIRD, 1859
- Gerrhonotus liocephalus WIEGMANN, 1828
- Gerrhosaurus nigrolineatus HALLOWELL, 1857
- Glyptemys insculpta (LE CONTE, 1830)
- Glyptemys muhlenbergii (SCHOEPFF, 1801)
- Gonatodes albogularis (DUMÉRIL & BIBRON, 1836)
- Gopherus agassizii (COOPER, 1861)
- Gopherus berlandieri AGASSIZ, 1857
- Gopherus evgoodei EDWARDS, KARL, VAUGHN, ROSEN, MELÉNDEZ-TORRES & MURPHY, 2016
- Gopherus flavomarginatus LEGLER, 1959
- Gopherus morafkai MURPHY, BERRY, EDWARDS, LEVITON, LATHROP & RIEDLE, 2011
- Gopherus polyphemus (DAUDIN, 1801)
- Graptemys barbouri CARR & MARCHAND, 1942
- Graptemys caglei HAYNES & MCKOWN, 1974
- Graptemys ernsti LOVICH & MCCOY, 1992
- Graptemys flavimaculata CAGLE, 1954
- Graptemys geographica (LESUEUR, 1817)
- Graptemys gibbonsi LOVICH & MCCOY, 1992
- Graptemys nigrinoda CAGLE, 1954
- Graptemys oculifera (BAUR, 1890)
- Graptemys ouachitensis CAGLE, 1953
- Graptemys pearlensis ENNEN, LOVICH, KREISER, SELMAN & QUALLS, 2010
- Graptemys pseudogeographica (GRAY, 1831)
- Graptemys pulchra BAUR, 1893
- Graptemys sabinensis CAGLE, 1953
- Graptemys versa STEJNEGER, 1925
- Gyalopion canum (COPE, 1860)
- Gyalopion quadrangulare (GÜNTHER, 1893)
- Gymnophthalmus speciosus (HALLOWELL, 1861)
- Hardella thurjii (GRAY, 1831)
- Heliobolus nitidus (GÜNTHER, 1872)
- Heloderma suspectum COPE, 1869
- Hemidactylus angulatus HALLOWELL, 1854
- Hemidactylus brookii GRAY, 1845
- Hemidactylus fasciatus GRAY, 1842
- Hemidactylus flaviviridis RÜPPELL, 1835
- Hemidactylus frenatus DUMÉRIL & BIBRON, 1836
- Hemidactylus garnotii DUMÉRIL & BIBRON, 1836
- Hemidactylus ituriensis SCHMIDT, 1919
- Hemidactylus longicephalus BOCAGE, 1873
- Hemidactylus mabouia (MOREAU DE JONNÈS, 1818)
- Hemidactylus muriceus PETERS, 1870
- Hemidactylus persicus ANDERSON, 1872
- Hemidactylus platyurus (SCHNEIDER, 1797)
- Hemidactylus richardsonii (GRAY, 1845)
- Hemidactylus triedrus (DAUDIN, 1802)
- Hemidactylus turcicus (LINNAEUS, 1758)
- Heosemys annandalii (BOULENGER, 1903)
- Heosemys depressa (ANDERSON, 1875)
- Heosemys grandis (GRAY, 1860)
- Heosemys spinosa (GRAY, 1831)
- Heterodon kennerlyi KENNICOTT, 1860
- Heterodon nasicus BAIRD & GIRARD, 1852
- Heterodon platirhinos LATREILLE, 1801
- Heterodon simus (LINNAEUS, 1766)
- Holaspis guentheri GRAY, 1863
- Holbrookia approximans BAIRD, 1859
- Holbrookia elegans BOCOURT, 1874
- Holbrookia lacerata COPE, 1880
- Holbrookia maculata GIRARD, 1851
- Holbrookia propinqua BAIRD & GIRARD, 1852
- Holbrookia subcaudalis AXTELL, 1956
- Holcosus amphigrammus (SMITH & LAUFE, 1945)
- Holcosus festivus (LICHTENSTEIN & MARTENS, 1856)
- Holcosus gaigeae (SMITH & LAUFE, 1946)
- Holcosus hartwegi (SMITH, 1940)
- Holcosus parvus (BARBOUR & NOBLE, 1915)
- Holcosus pulcher (HALLOWELL, 1861)
- Holcosus sinister (SMITH & LAUFE, 1946)
- Holcosus stuarti SMITH, 1940
- Holcosus thomasi (SMITH & LAUFE, 1946)
- Holcosus undulatus (WIEGMANN, 1834)
- Homopus areolatus (THUNBERG, 1787)
- Homopus femoralis BOULENGER, 1888
- Hydromedusa maximiliani (MIKAN, 1825)
- Hydromedusa tectifera COPE, 1870
- Hydrophis caerulescens (SHAW, 1802)
- Hydrophis cantoris GÜNTHER, 1864
- Hydrophis cyanocinctus DAUDIN, 1803
- Hydrophis platurus (LINNAEUS, 1766)
- Hydrophis spiralis (SHAW, 1802)
- Hypsiglena chlorophaea COPE, 1860
- Hypsiglena jani DUGÈS, 1865
- Hypsiglena ochrorhynchus COPE, 1860
- Ichnotropis chapini SCHMIDT, 1919
- Iguana iguana (LINNAEUS, 1758)
- Indotestudo elongata (BLYTH, 1854)
- Indotestudo forstenii (SCHLEGEL & MÜLLER, 1844)
- Indotestudo travancorica (BOULENGER, 1907)
- Indotyphlops braminus (DAUDIN, 1803)
- Kinixys belliana GRAY, 1831
- Kinixys erosa (SCHWEIGGER, 1812)
- Kinixys homeana BELL, 1827
- Kinixys lobatsiana (POWER, 1927)
- Kinixys natalensis HEWITT, 1935
- Kinixys nogueyi (LATASTE, 1886)
- Kinixys spekii GRAY, 1863
- Kinixys zombensis HEWITT, 1931
- Kinosternon abaxillare BAUR, 1925
- Kinosternon acutum GRAY, 1831
- Kinosternon alamosae BERRY & LEGLER, 1980
- Kinosternon albogulare (DUMÉRIL & BOCOURT, 1870)
- Kinosternon angustipons LEGLER, 1965
- Kinosternon baurii (GARMAN, 1891)
- Kinosternon chimalhuaca BERRY, SEIDEL & IVERSON, 1997
- Kinosternon cora LOC-BARRAGÁN, REYES-VELASCO, WOOLRICH-PIÑA, GRÜNWALD, VENEGAS DE ANAYA, RANGEL-MENDOZA & LÓPEZ-LUNA, 2020
- Kinosternon creaseri HARTWEG, 1934
- Kinosternon cruentatum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon dunni SCHMIDT, 1947
- Kinosternon durangoense IVERSON, 1979
- Kinosternon flavescens (AGASSIZ, 1857)
- Kinosternon herrerai STEJNEGER, 1925
- Kinosternon hirtipes (WAGLER, 1830)
- Kinosternon integrum LE CONTE, 1854
- Kinosternon leucostomum (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Kinosternon oaxacae BERRY & IVERSON, 1980
- Kinosternon scorpioides (LINNAEUS, 1766)
- Kinosternon sonoriense LE CONTE, 1854
- Kinosternon steindachneri SIEBENROCK, 1906
- Kinosternon stejnegeri HARTWEG, 1938
- Kinosternon subrubrum BONNATERRE, 1789
- Kinosternon vogti LÓPEZ-LUNA, CUPUL-MAGAÑA, ESCOBEDO-GALVÁN, GONZÁLEZ-HERNÁNDEZ, CENTENERO-ALCALÁ, RANGEL-MENDOZA, RAMÍREZ-RAMÍREZ & CAZARES-HERNÁNDEZ, 2018
- Kinyongia adolfifriderici (STERNFELD, 1912)
- Lacertaspis reichenowii (PETERS, 1874)
- Laemanctus julioi MCCRANIE, 2018
- Laemanctus longipes WIEGMANN, 1834
- Laemanctus serratus COPE, 1864
- Laemanctus waltersi SCHMIDT, 1933
- 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 getula (LINNAEUS, 1766)
- Lampropeltis holbrooki STEJNEGER, 1902
- Lampropeltis knoblochi TAYLOR, 1940
- Lampropeltis nigra (YARROW, 1882)
- Lampropeltis occipitolineata PRICE, 1987
- Lampropeltis pyromelana (COPE, 1866)
- Lampropeltis rhombomaculata (HOLBROOK, 1840)
- Lampropeltis splendida (BAIRD & GIRARD, 1853)
- Lampropeltis triangulum (LACÉPÈDE, 1789)
- Lampropeltis webbi BRYSON, DIXON & LAZCANO, 2005
- Lampropeltis zonata (LOCKINGTON, 1835)
- Laticauda colubrina (SCHNEIDER, 1799)
- Leiocephalus carinatus GRAY, 1827
- Leiocephalus schreibersii (GRAVENHORST, 1838)
- Leiocephalus varius GARMAN, 1887
- Leiolepis belliana (HARDWICKE & GRAY, 1827)
- Leiolepis ocellata PETERS, 1971
- Lepidochelys kempii GARMAN, 1880
- Lepidochelys olivacea (ESCHSCHOLTZ, 1829)
- Lepidophyma flavimaculatum DUMÉRIL, 1851
- Lepidophyma mayae BEZY, 1973
- Leptodeira septentrionalis (KENNICOTT, 1859)
- Leucocephalon yuwonoi (MCCORD, IVERSON & BOEADI, 1995)
- Lichanura orcutti STEJNEGER, 1889
- Lichanura trivirgata COPE, 1861
- Liodytes alleni (GARMAN, 1874)
- Liodytes rigida (SAY, 1825)
- Lissemys ceylonensis (GRAY, 1856)
- Lissemys punctata (BONNATERRE, 1789)
- Lissemys scutata (PETERS, 1868)
- Lycodon semicarinatus (COPE, 1860)
- Lygodactylus depressus SCHMIDT, 1919
- Lygodactylus gutturalis (BOCAGE, 1873)
- Lygodactylus paurospilus (LAURENT, 1952)
- Macrochelys suwanniensis THOMAS, GRANATOSKY, BOURQUE, KRYSKO, MOLER, GAMBLE, SUAREZ, LEONE & ROMAN, 2014
- Macrochelys temminckii TROOST, 1835
- Malaclemys terrapin (SCHOEPFF, 1793)
- Malacochersus tornieri (SIEBENROCK, 1903)
- Malayemys khoratensis IHLOW, VAMBERGER, FLECKS, HARTMANN, COTA, MAKCHAI, MEEWATTANA, DAWSON, KHENG, RÖDDER & FRITZ, 2016
- Malayemys macrocephala (GRAY, 1859)
- Malayemys subtrijuga (SCHLEGEL & MÜLLER, 1845)
- Manouria emys (SCHLEGEL & MÜLLER, 1844)
- Manouria impressa (GÜNTHER, 1882)
- Marisora brachypoda (TAYLOR, 1956)
- Marisora roatanae HEDGES & CONN, 2012
- Marisora urtica MCCRANIE, MATTHEWS & HEDGES, 2020
- Masticophis bilineatus JAN, 1863
- Masticophis flagellum (SHAW, 1802)
- Masticophis fuliginosus (COPE, 1895)
- Masticophis lateralis (HALLOWELL, 1853)
- Masticophis piceus (COPE, 1892)
- Masticophis schotti BAIRD & GIRARD, 1853
- Masticophis slevini LOWE & NORRIS, 1955
- Masticophis taeniatus (HALLOWELL, 1852)
- Mauremys annamensis (SIEBENROCK, 1903)
- Mauremys caspica (GMELIN, 1774)
- Mauremys japonica (TEMMINCK & SCHLEGEL, 1835)
- Mauremys leprosa (SCHWEIGGER, 1812)
- Mauremys mutica (CANTOR, 1842)
- Mauremys nigricans (GRAY, 1834)
- Mauremys reevesii (GRAY, 1831)
- Mauremys rivulata (VALENCIENNES, 1833)
- Mauremys sinensis (GRAY, 1834)
- Mecistops cataphractus CUVIER, 1825
- Mediodactylus sagittifer (NIKOLSKY, 1900)
- Melanochelys tricarinata (BLYTH, 1856)
- Melanochelys trijuga (SCHWEIGGER, 1812)
- Melanosuchus niger (SPIX, 1825)
- Mesalina watsonana (STOLICZKA, 1872)
- Mesoclemmys dahli (ZANGERL & MEDEM, 1958)
- Mesoclemmys gibba (SCHWEIGGER, 1812)
- Mesoclemmys nasuta (SCHWEIGGER, 1812)
- Mesoclemmys perplexa BOUR & ZAHER, 2005
- Mesoclemmys raniceps (GRAY, 1856)
- Mesoclemmys tuberculata (LUEDERWALDT, 1926)
- Mesoclemmys vanderhaegei BOUR, 1973
- Mesoclemmys wermuthi (MERTENS, 1969)
- Mesoclemmys zuliae (PRITCHARD & TREBBAU, 1984)
- Mesoscincus managuae (DUNN, 1933)
- Micruroides euryxanthus (KENNICOTT, 1860)
- Micrurus fulvius (LINNAEUS, 1766)
- Micrurus tener (BAIRD & GIRARD, 1853)
- Mochlus fernandi (BURTON, 1836)
- Mochlus hinkeli (WAGNER, BÖHME, PAUWELS & SCHMITZ, 2009)
- Mochlus sundevallii (SMITH, 1849)
- Monopeltis galeata (HALLOWELL, 1852)
- Morenia ocellata (DUMÉRIL & BIBRON, 1835)
- Morenia petersi (ANDERSON, 1879)
- Myuchelys bellii (GRAY, 1844)
- Myuchelys georgesi (CANN, 1997)
- Myuchelys latisternum (GRAY, 1867)
- Myuchelys purvisi (WELLS & WELLINGTON, 1985)
- Natator depressus (GARMAN, 1880)
- Nerodia clarkii (BAIRD & GIRARD, 1853)
- Nerodia cyclopion (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Nerodia erythrogaster (FORSTER, 1771)
- Nerodia fasciata (LINNAEUS, 1766)
- Nerodia floridana (GOFF, 1936)
- Nerodia harteri (TRAPIDO, 1941)
- Nerodia paucimaculata (TINKLE & CONANT, 1961)
- Nerodia rhombifer (HALLOWELL, 1852)
- Nerodia sipedon (LINNAEUS, 1758)
- Nerodia taxispilota (HOLBROOK, 1838)
- Nilssonia formosa (GRAY, 1869)
- Nilssonia gangetica (CUVIER, 1825)
- Nilssonia hurum (GRAY, 1831)
- Nilssonia leithii (GRAY, 1872)
- Nilssonia nigricans (ANDERSON, 1875)
- Notechis scutatus (PETERS, 1861)
- Notochelys platynota (GRAY, 1834)
- Oligodon eberhardti PELLEGRIN, 1910
- Opheodrys aestivus LINNAEUS, 1766
- Opheodrys vernalis (HARLAN, 1827)
- Ophisaurus attenuatus BAIRD, 1880
- Ophisaurus compressus COPE, 1900
- Ophisaurus mimicus PALMER, 1987
- Ophisaurus ventralis (LINNAEUS, 1766)
- Orlitia borneensis GRAY, 1873
- Osteolaemus osborni (SCHMIDT, 1919)
- Osteolaemus tetraspis COPE, 1861
- Oxybelis aeneus (WAGLER, 1824)
- Oxyrhopus rhombifer DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Oxyrhopus vanidicus LYNCH, 2009
- Palea steindachneri (SIEBENROCK, 1906)
- Panaspis breviceps (PETERS, 1873)
- Panaspis cabindae (BOCAGE, 1866)
- Pangshura smithii (GRAY, 1863)
- Pangshura sylhetensis JERDON, 1870
- Pangshura tecta (GRAY, 1831)
- Pangshura tentoria (GRAY, 1834)
- Pantherophis alleghaniensis (HOLBROOK, 1836)
- Pantherophis bairdi (YARROW, 1880)
- Pantherophis emoryi (BAIRD & GIRARD, 1853)
- Pantherophis guttatus (LINNAEUS, 1766)
- Pantherophis obsoletus (SAY, 1823)
- Pantherophis quadrivittatus (HOLBROOK, 1836)
- Pantherophis ramspotti CROTHER, WHITE, SAVAGE, ECKSTUT, GRAHAM & GARDNER, 2011
- Pantherophis vulpinus (BAIRD & GIRARD, 1853)
- Pelochelys bibroni (OWEN, 1853)
- Pelochelys cantorii GRAY, 1864
- Pelochelys signifera WEBB, 2002
- Pelodiscus axenaria (ZHOU, ZHANG & FANG, 1991)
- Pelodiscus huangshanensis GONG, PENG, HUANG, LIN, HUANG, XU, YANG, & NIE, 2021
- Pelodiscus maackii (BRANDT, 1858)
- Pelodiscus parviformis TANG, 1997
- Pelodiscus shipian GONG, FRITZ, VAMBERGER, GAO & FARKAS, 2022
- Pelodiscus sinensis WIEGMANN, 1835
- Pelodiscus variegatus FARKAS, ZIEGLER, PHAM, ONG & FRITZ, 2019
- Pelomedusa barbata PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa galeata (SCHOEPFF, 1792)
- Pelomedusa gehafie (RÜPPELL, 1835)
- Pelomedusa kobe PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa neumanni PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa olivacea (SCHWEIGGER, 1812)
- Pelomedusa schweinfurthi PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa somalica PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Pelomedusa subrufa (BONNATERRE, 1789)
- Pelomedusa variabilis PETZOLD, VARGAS-RAMÍREZ, KEHLMAIER, VAMBERGER, BRANCH, DU PREEZ, HOFMEYR, MEYER, SCHLEICHER, ŠIROKÝ & FRITZ, 2014
- Peltocephalus dumerilianus (SCHWEIGGER, 1812)
- Pelusios adansonii (SCHWEIGGER, 1812)
- Pelusios bechuanicus FITZSIMONS, 1932
- Pelusios broadleyi BOUR, 1986
- Pelusios carinatus LAURENT, 1956
- Pelusios castaneus (SCHWEIGGER, 1812)
- Pelusios castanoides HEWITT, 1931
- Pelusios chapini LAURENT, 1965
- Pelusios cupulatta BOUR & MARAN, 2003
- Pelusios gabonensis (DUMÉRIL, 1856)
- Pelusios marani BOUR, 2000
- Pelusios nanus LAURENT, 1956
- Pelusios niger (DUMÉRIL & BIBRON, 1835)
- Pelusios rhodesianus HEWITT, 1927
- Pelusios sinuatus (SMITH, 1838)
- Pelusios subniger (BONNATERRE, 1789)
- Pelusios upembae BROADLEY, 1981
- Pelusios williamsi LAURENT, 1965
- Petrosaurus mearnsi (STEJNEGER, 1894)
- Phelsuma madagascariensis GRAY, 1831
- Phrynops geoffroanus (SCHWEIGGER, 1812)
- Phrynops hilarii (DUMÉRIL & BIBRON, 1835)
- Phrynops tuberosus (PETERS, 1870)
- Phrynops williamsi RHODIN & MITTERMEIER, 1983
- Phrynosoma blainvillii GRAY, 1839
- Phrynosoma cornutum (HARLAN, 1825)
- Phrynosoma douglasii (BELL, 1829)
- Phrynosoma goodei STEJNEGER, 1893
- Phrynosoma hernandesi GIRARD, 1858
- Phrynosoma mcallii (HALLOWELL, 1852)
- Phrynosoma modestum GIRARD, 1852
- Phrynosoma orbiculare (LINNAEUS, 1758)
- Phrynosoma platyrhinos GIRARD, 1852
- Phrynosoma solare GRAY, 1845
- Phyllodactylus magnus TAYLOR, 1942
- Phyllodactylus nocticolus DIXON, 1964
- Phyllodactylus palmeus DIXON, 1968
- Phyllodactylus paralepis MCCRANIE & HEDGES, 2013
- Phyllodactylus saxatilis DIXON, 1964
- Phyllodactylus tuberculosus WIEGMANN, 1834
- Phyllorhynchus browni STEJNEGER, 1890
- Phyllorhynchus decurtatus (COPE, 1868)
- Pituophis catenifer (BLAINVILLE, 1835)
- Pituophis melanoleucus (DAUDIN, 1803)
- Pituophis ruthveni STULL, 1929
- Plagiopholis styani (BOULENGER, 1899)
- Platemys platycephala (SCHNEIDER, 1792)
- Platyceps rhodorachis (JAN, 1863)
- Platysternon megacephalum GRAY, 1831
- Plestiodon anthracinus BAIRD, 1849
- Plestiodon bilineatus (TANNER, 1958)
- Plestiodon callicephalus (BOCOURT, 1879)
- Plestiodon egregius BAIRD, 1858
- Plestiodon fasciatus (LINNAEUS, 1758)
- Plestiodon gilberti (VAN DENBURGH, 1896)
- Plestiodon inexpectatus (TAYLOR, 1932)
- Plestiodon laticeps (SCHNEIDER, 1801)
- Plestiodon multilineatus (TANNER, 1957)
- Plestiodon multivirgatus HALLOWELL, 1858
- Plestiodon obsoletus BAIRD & GIRARD, 1852
- Plestiodon parviauriculatus (TAYLOR, 1933)
- Plestiodon reynoldsi (STEJNEGER, 1910)
- Plestiodon septentrionalis BAIRD, 1858
- Plestiodon skiltonianus BAIRD & GIRARD, 1852
- Plestiodon sumichrasti (COPE, 1867)
- Plestiodon tetragrammus BAIRD, 1859
- Podocnemis erythrocephala SPIX, 1824
- Podocnemis expansa (SCHWEIGGER, 1812)
- Podocnemis lewyana DUMÉRIL, 1852
- Podocnemis sextuberculata CORNALIA, 1849
- Podocnemis unifilis TROSCHEL, 1848
- Podocnemis vogli MÜLLER, 1935
- Polychrus gutturosus BERTHOLD, 1846
- Poromera fordii (HALLOWELL, 1857)
- Psammobates geometricus (LINNAEUS, 1758)
- Psammobates oculifer (KUHL, 1820)
- Psammobates tentorius (BELL, 1828)
- Pseudemydura umbrina SIEBENROCK, 1901
- Pseudemys alabamensis BAUR, 1893
- Pseudemys concinna (LE CONTE, 1830)
- Pseudemys floridana (LE CONTE, 1830)
- Pseudemys gorzugi WARD, 1984
- Pseudemys nelsoni CARR, 1938
- Pseudemys peninsularis CARR, 1938
- Pseudemys rubriventris (LE CONTE, 1830)
- Pseudemys texana BAUR, 1893
- Python bivittatus KUHL, 1820
- Pyxis arachnoides BELL, 1827
- Pyxis planicauda (GRANDIDIER, 1867)
- Rafetus euphraticus (DAUDIN, 1801)
- Rafetus swinhoei (GRAY, 1873)
- Ranacephala hogei (MERTENS, 1967)
- Regina grahamii BAIRD & GIRARD, 1853
- Rena dulcis BAIRD & GIRARD, 1853
- Rena humilis BAIRD & GIRARD, 1853
- Rena segrega (KLAUBER, 1939)
- Rhadinaea flavilata (COPE, 1871)
- Rhampholeon boulengeri STEINDACHNER, 1911
- Rheodytes leukops LEGLER, 1980
- Rhinemys rufipes (SPIX, 1824)
- Rhineura floridana (BAIRD, 1858)
- Rhinocheilus lecontei BAIRD & GIRARD, 1853
- Rhinoclemmys annulata (GRAY, 1860)
- Rhinoclemmys areolata (DUMÉRIL, BIBRON & DUMÉRIL, 1851)
- Rhinoclemmys diademata (MERTENS, 1954)
- Rhinoclemmys funerea (COPE, 1875)
- Rhinoclemmys melanosterna (GRAY, 1861)
- Rhinoclemmys nasuta (BOULENGER, 1902)
- Rhinoclemmys pulcherrima (GRAY, 1855)
- Rhinoclemmys punctularia (DAUDIN, 1801)
- Rhinoclemmys rubida (COPE, 1870)
- Sacalia bealei (GRAY, 1831)
- Sacalia quadriocellata (SIEBENROCK, 1903)
- Salvadora deserticola SCHMIDT, 1940
- Salvadora grahamiae BAIRD & GIRARD, 1853
- Salvadora hexalepis (COPE, 1867)
- Salvadora lineata SCHMIDT, 1940
- Salvator merianae DUMÉRIL & BIBRON, 1839
- Sauromalus ater DUMÉRIL, 1856
- Sceloporus acanthinus BOCOURT, 1873
- Sceloporus albiventris SMITH, 1939
- Sceloporus arenicolus DEGENHARDT & JONES, 1972
- Sceloporus becki VAN DENBURGH, 1905
- Sceloporus bimaculosus PHELAN & BRATTSTROM, 1955
- Sceloporus caeruleus SMITH, 1936
- Sceloporus clarkii BAIRD & GIRARD, 1852
- Sceloporus cowlesi LOWE & NORRIS, 1956
- Sceloporus cyanogenys COPE, 1885
- Sceloporus cyanostictus AXTELL & AXTELL, 1971
- Sceloporus esperanzae MCCRANIE, 2018
- Sceloporus graciosus BAIRD & GIRARD, 1852
- Sceloporus grammicus WIEGMANN, 1828
- Sceloporus hondurensis MCCRANIE, 2018
- Sceloporus jarrovii COPE, 1875
- Sceloporus magister HALLOWELL, 1854
- Sceloporus marmoratus HALLOWELL, 1852
- Sceloporus melanogaster COPE, 1885
- Sceloporus merriami STEJNEGER, 1904
- Sceloporus nelsoni COCHRAN, 1923
- Sceloporus occidentalis BAIRD & GIRARD, 1852
- Sceloporus olivaceus SMITH, 1934
- Sceloporus orcutti STEJNEGER, 1893
- Sceloporus poinsettii BAIRD & GIRARD, 1852
- Sceloporus schmidti JONES, 1927
- Sceloporus slevini SMITH, 1937
- Sceloporus smaragdinus BOCOURT, 1873
- Sceloporus squamosus BOCOURT, 1874
- Sceloporus sugillatus SMITH, 1942
- Sceloporus tristichus COPE, 1875
- Sceloporus undulatus (BOSC & DAUDIN, 1801)
- Sceloporus uniformis PHELAN & BRATTSTROM, 1955
- Sceloporus vandenburgianus COPE, 1896
- Sceloporus variabilis WIEGMANN, 1834
- Sceloporus virgatus SMITH, 1938
- Sceloporus woodi STEJNEGER, 1918
- Scincella assata (COPE, 1864)
- Scincella cherriei (COPE, 1893)
- Scincella incerta (STUART, 1940)
- Scincella lateralis (SAY, 1822)
- Seminatrix pygaea (COPE, 1871)
- Senticolis triaspis (COPE, 1866)
- Siebenrockiella crassicollis (GRAY, 1831)
- Siebenrockiella leytensis (TAYLOR, 1920)
- Sistrurus catenatus (RAFINESQUE, 1818)
- Sistrurus miliarius LINNAEUS, 1766
- Sistrurus tergeminus (SAY, 1823)
- Sonora aemula (COPE, 1879)
- Sonora annulata (BAIRD, 1859)
- Sonora episcopa (KENNICOTT, 1859)
- Sonora occipitalis (HALLOWELL, 1854)
- Sonora palarostris KLAUBER, 1937
- Sonora semiannulata BAIRD & GIRARD, 1853
- Sonora straminea (COPE, 1860)
- Sonora taylori (BOULENGER, 1894)
- Sphaerodactylus alphus MCCRANIE & HEDGES, 2013
- Sphaerodactylus argus GOSSE, 1850
- Sphaerodactylus continentalis WERNER, 1896
- Sphaerodactylus dunni SCHMIDT, 1936
- Sphaerodactylus elegans (MACLEAY, 1834)
- Sphaerodactylus exsul BARBOUR, 1914
- Sphaerodactylus glaucus COPE, 1866
- Sphaerodactylus guanajae MCCRANIE & HEDGES, 2012
- Sphaerodactylus leonardovaldesi MCCRANIE & HEDGES, 2012
- Sphaerodactylus millepunctatus (HALLOWELL, 1861)
- Sphaerodactylus notatus (BAIRD, 1859)
- Sphaerodactylus poindexteri MCCRANIE & HEDGES, 2013
- Sphaerodactylus rosaurae PARKER, 1940
- Sphenodon punctatus (GRAY, 1842)
- Sphenomorphus praesignis (BOULENGER, 1900)
- Spondylurus caicosae HEDGES & CONN, 2012
- Staurotypus salvinii GRAY, 1864
- Staurotypus triporcatus (WIEGMANN, 1828)
- Sternotherus carinatus (GRAY, 1856)
- Sternotherus depressus TINKLE & WEBB, 1955
- Sternotherus intermedius SCOTT, GLENN & RISSLER, 2017
- Sternotherus minor (AGASSIZ, 1857)
- Sternotherus odoratus (LATREILLE, 1802)
- Sternotherus peltifer SMITH & GLASS, 1947
- Stigmochelys pardalis (BELL, 1828)
- Storeria dekayi (HOLBROOK, 1839)
- Storeria occipitomaculata STORER, 1839
- Storeria victa HAY, 1892
- Tantilla atriceps (GÜNTHER, 1895)
- Tantilla coronata BAIRD & GIRARD, 1853
- Tantilla cucullata MINTON, 1956
- Tantilla gracilis BAIRD & GIRARD, 1853
- Tantilla hobartsmithi TAYLOR, 1937
- Tantilla nigriceps KENNICOTT, 1860
- Tantilla oolitica TELFORD, 1966
- Tantilla planiceps (BLAINVILLE, 1835)
- Tantilla relicta TELFORD, 1966
- Tantilla wilcoxi STEJNEGER, 1902
- Tantilla yaquia SMITH, 1942
- Tarentola annularis (GEOFFROY SAINT-HILAIRE, 1827)
- Terrapene carolina (LINNAEUS, 1758)
- Terrapene coahuila SCHMIDT & OWENS, 1944
- Terrapene mexicana (GRAY, 1849)
- Terrapene nelsoni STEJNEGER, 1925
- Terrapene ornata (AGASSIZ, 1857)
- Terrapene triunguis (AGASSIZ, 1857)
- Terrapene yucatana (BOULENGER, 1895)
- Testudo graeca LINNAEUS, 1758
- Testudo hermanni GMELIN, 1789
- Testudo horsfieldii GRAY, 1844
- Testudo kleinmanni LORTET, 1883
- Testudo marginata SCHOEPFF, 1792
- Thamnophis atratus KENNICOTT, 1860
- Thamnophis brachystoma (COPE, 1892)
- Thamnophis butleri (COPE, 1889)
- Thamnophis couchii (KENNICOTT, 1859)
- Thamnophis cyrtopsis (KENNICOTT, 1860)
- Thamnophis elegans (BAIRD & GIRARD, 1853)
- Thamnophis eques (REUSS, 1834)
- Thamnophis gigas FITCH, 1940
- Thamnophis marcianus (BAIRD & GIRARD, 1853)
- Thamnophis ordinoides (BAIRD & GIRARD, 1852)
- Thamnophis proximus (SAY, 1823)
- Thamnophis radix (BAIRD & GIRARD, 1853)
- Thamnophis rufipunctatus (COPE, 1875)
- Thamnophis saurita (LINNAEUS, 1766)
- Thamnophis sirtalis (LINNAEUS, 1758)
- Thecadactylus rapicauda (HOUTTUYN, 1782)
- Thelotornis usambaricus BROADLEY, 2001
- Trachemys adiutrix VANZOLINI, 1995
- Trachemys callirostris (GRAY, 1855)
- Trachemys decorata (BARBOUR & CARR, 1940)
- Trachemys decussata (GRAY, 1831)
- Trachemys dorbigni (DUMÉRIL & BIBRON, 1835)
- Trachemys gaigeae (HARTWEG, 1939)
- Trachemys grayi (BOCOURT, 1868)
- Trachemys hartwegi (LEGLER, 1990)
- Trachemys medemi VARGAS-RAMÍREZ, VALLE, CEBALLOS & FRITZ, 2017
- Trachemys nebulosa (VAN DENBURGH, 1895)
- Trachemys ornata (GRAY, 1831)
- Trachemys scripta (THUNBERG, 1792)
- Trachemys stejnegeri SCHMIDT, 1928
- Trachemys taylori (LEGLER, 1960)
- Trachemys terrapen (BONNATERRE, 1789)
- Trachemys venusta (GRAY, 1856)
- Trachemys yaquia (LEGLER & WEBB, 1970)
- Trachylepis acutilabris (PETERS, 1862)
- Trachylepis albilabris (HALLOWELL, 1857)
- Trachylepis buettneri (MATSCHIE, 1893)
- Trachylepis maculilabris (GRAY, 1845)
- Trachylepis notabilis (PETERS, 1879)
- Trachylepis paucisquamis (HOOGMOED, 1978)
- Trachylepis perrotetii (DUMÉRIL & BIBRON, 1839)
- Trachylepis polytropis (BOULENGER, 1903)
- Trimorphodon lambda COPE, 1886
- Trimorphodon lyrophanes (COPE, 1860)
- Trimorphodon vilkinsonii COPE, 1886
- Trioceros ituriensis SCHMIDT, 1919
- Trioceros oweni (GRAY, 1831)
- Trionyx triunguis (FORSKÅL, 1775)
- Tropidoclonion lineatum (HALLOWELL, 1856)
- Uma cowlesi HEIFETZ, 1941
- Uma inornata COPE, 1895
- Uma notata BAIRD, 1858
- Uma scoparia COPE, 1894
- Urosaurus bicarinatus (DUMÉRIL, 1856)
- Urosaurus graciosus HALLOWELL, 1854
- Urosaurus nigricauda (COPE, 1864)
- Urosaurus ornatus (BAIRD & GIRARD, 1852)
- Uta stansburiana BAIRD & GIRARD, 1852
- Varanus albigularis DAUDIN, 1802
- Varanus bengalensis (DAUDIN, 1802)
- Varanus exanthematicus (BOSC, 1792)
- Varanus flavescens (HARDWICKE & GRAY, 1827)
- Varanus nebulosus (GRAY, 1831)
- Varanus niloticus (LINNAEUS, 1766)
- Varanus panoptes STORR, 1980
- Varanus salvator (LAURENTI, 1768)
- Varanus varius (SHAW, 1790)
- Vijayachelys silvatica (HENDERSON, 1912)
- Virginia striatula (LINNAEUS, 1766)
- Virginia valeriae BAIRD & GIRARD, 1853
- Xantusia arizonae KLAUBER, 1931
- Xantusia bezyi PAPENFUSS, MACEY & SCHULTE, 2001
- Xantusia extorris WEBB, 1965
- Xantusia gilberti VAN DENBURGH, 1895
- Xantusia gracilis GRISMER & GALVAN, 1986
- Xantusia henshawi STEJNEGER, 1893
- Xantusia riversiana COPE, 1883
- Xantusia sierrae BEZY, 1967
- Xantusia vigilis BAIRD, 1859
- Xantusia wigginsi SAVAGE, 1952