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Species found: 1671
- Ablepharus anatolicus SCHMIDTLER, 1997
- Ablepharus bivittatus (MENETRIES, 1832)
- Ablepharus budaki GÖCMEN, KUMLUTAS & TOSUNOGLU, 1996
- Ablepharus capitaneus (OUBOTER, 1986)
- Ablepharus chernovi DAREVSKY, 1953
- Ablepharus kitaibelii COCTEAU, 1833
- Ablepharus ladacensis (GÜNTHER, 1864)
- Ablepharus mahabharatus (EREMCHENKO, SHAH & PANFILOV, 1998)
- Ablepharus pannonicus (LICHTENSTEIN, 1823)
- Ablepharus rueppellii (GRAY, 1839)
- Ablepharus sikimmensis (BLYTH, 1854)
- Abronia anzuetoi CAMPBELL & FROST, 1993
- Abronia campbelli BRODIE & SAVAGE, 1993
- Abronia chiszari SMITH & SMITH, 1981
- Abronia cuchumatanus (SOLANO-ZAVALETA, NIETO-MONTES DE OCA & CAMPBELL, 2016)
- Abronia cuetzpali CAMPBELL, SOLANO-ZAVALETA, FLORES-VILLELA, CAVIEDES-SOLIS & FROST, 2016
- Abronia fimbriata (COPE, 1885)
- Abronia frosti CAMPBELL, SASA, ACEVEDO & MENDELSON, 1998
- Abronia gaiophantasma CAMPBELL & FROST, 1993
- Abronia juarezi (KARGES & WRIGHT, 1987)
- Abronia meledona CAMPBELL & BRODIE, 1999
- Abronia mitchelli CAMPBELL, 1982
- Abronia ornelasi CAMPBELL, 1984
- Abronia smithi CAMPBELL & FROST, 1993
- Acanthocercus adramitanus (ANDERSON, 1896)
- Acanthocercus ceriacoi MARQUES, PARRINHA, SANTOS, BANDEIRA, BUTLER, SOUSA, BAUER & WAGNER, 2022
- Acanthocercus minutus (KLAUSEWITZ, 1957)
- Acanthochelys spixii (DUMÉRIL & BIBRON, 1835)
- Acanthodactylus boskianus (DAUDIN, 1802)
- Acanthodactylus cantoris GÜNTHER, 1864
- Acanthodactylus erythrurus (SCHINZ, 1833)
- Acanthodactylus grandis BOULENGER, 1909
- Acanthodactylus harranensis BARAN, KUMLUTAS, LANZA, SINDACO, AVCI & CRUCITTI, 2005
- Acanthodactylus ilgazi KURNAZ & ŞAHIN, 2021
- Acanthodactylus schreiberi BOULENGER, 1878
- Acanthophis antarcticus (SHAW, 1802)
- Achalinus mirabilis XU, HU, QI, MA, CHEN, ZHANG, ZHANG, SUN, ZHOU, XU, WANG & PENG, 2026
- Acontias parietalis (BROADLEY, 1990)
- Acrantophis madagascariensis (DUMÉRIL & BIBRON, 1844)
- Acratosaura mentalis (AMARAL, 1933)
- Adelphicos ibarrorum CAMPBELL & BRODIE, 1988
- Adelphostigma occipitalis (JAN, 1863)
- Adercosaurus vixadnexus MYERS & DONNELLY, 2001
- Afroedura bogerti LOVERIDGE, 1944
- Agama bibronii DUMÉRIL, 1851
- Agama parafricana TRAPE, MEDIANNIKOV & TRAPE, 2012
- Agama rueppelli VAILLANT, 1882
- Ahaetulla anomala (ANNANDALE, 1906)
- Ahaetulla dispar (GÜNTHER, 1864)
- Ahaetulla flavescens (WALL, 1910)
- Ahaetulla fusca (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Ahaetulla isabellina (WALL, 1910)
- Ahaetulla laudankia DEEPAK, NARAYANAN, SARKAR, DUTTA & MOHAPATRA, 2019
- Ahaetulla nasuta (LACÉPÈDE, 1789)
- Ahaetulla oxyrhynca (BELL, 1825)
- Ahaetulla prasina (BOIE, 1827)
- Ahaetulla pulverulenta (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Algyroides nigropunctatus (DUMÉRIL & BIBRON, 1839)
- Alopoglossus vallensis (HARRIS, 1994)
- Ameiva aggerecusans KOCH, VENEGAS, RÖDDER, FLECKS & BÖHME, 2013
- Ameiva concolor RUTHVEN, 1924
- Ameiva nodam KOCH, VENEGAS, RÖDDER, FLECKS & BÖHME, 2013
- Amnesteophis melanauchen (JAN, 1863)
- Amnisiophis amoenus (JAN, 1863)
- Amphiesma stolatum (LINNAEUS, 1758)
- Amphisbaena mertensii STRAUCH, 1881
- Amphisbaena pericensis NOBLE, 1921
- Amphisbaena plumbea GRAY, 1872
- Amphisbaena pretrei DUMÉRIL & BIBRON, 1839
- Amphisbaena vermicularis WAGLER, 1824
- Amyda cartilaginea (BODDAERT, 1770)
- Amyda ornata (GRAY, 1861)
- Anadia marmorata (GRAY, 1846)
- Anatololacerta anatolica (WERNER, 1900)
- Anatololacerta danfordi (GÜNTHER, 1876)
- Anatololacerta finikensis (EISELT & SCHMIDTLER, 1987)
- Anatololacerta ibrahimi (EISELT & SCHMIDTLER, 1987)
- Anatololacerta pelasgiana (MERTENS, 1959)
- Ancylodactylus laikipiensis MALONZA & BAUER, 2022
- Anguiculus rappii (GÜNTHER, 1860)
- Anguis colchica (NORDMANN, 1840)
- Anguis veronensis POLLINI, 1818
- Anilius scytale (LINNAEUS, 1758)
- Anolis alfaroi GARRIDO & HEDGES, 1992
- Anolis alutaceus COPE, 1861
- Anolis anfiloquioi GARRIDO, 1980
- Anolis bombiceps COPE, 1875
- Anolis calimae AYALA, HARRIS & WILLIAMS, 1983
- Anolis campbelli (KÖHLER & SMITH, 2008)
- Anolis carlliebi KÖHLER, TREJO-PÉREZ, PETERSEN & MÉNDEZ DE LA CRUZ, 2014
- Anolis carolinensis VOIGT, 1832
- Anolis clivicola BARBOUR & SHREVE, 1935
- Anolis cupeyalensis PETERS, 1970
- Anolis cyanopleurus COPE, 1861
- Anolis fugitivus GARRIDO, 1975
- Anolis fuscoauratus D’ORBIGNY, 1837
- Anolis inexpectatus GARRIDO & ESTRADA, 1989
- Anolis juangundlachi GARRIDO, 1975
- Anolis limifrons COPE, 1863
- Anolis macilentus GARRIDO & HEDGES, 1992
- Anolis maculigula WILLIAMS, 1984
- Anolis nasofrontalis AMARAL, 1933
- Anolis naufragus (CAMPBELL, HILLIS & LAMAR, 1989)
- Anolis oxylophus COPE, 1875
- Anolis proboscis PETERS & ORCES, 1956
- Anolis pseudotigrinus AMARAL, 1933
- Anolis punctatus DAUDIN, 1802
- Anolis rejectus GARRIDO & SCHWARTZ, 1972
- Anolis ruizii RUEDA & WILLIAMS, 1986
- Anolis sagrei DUMÉRIL & BIBRON, 1837
- Anolis spectrum PETERS, 1863
- Anolis trachyderma COPE, 1875
- Anolis tropidolepis BOULENGER, 1885
- Anolis vanidicus GARRIDO & SCHWARTZ, 1972
- Anolis vaupesianus WILLIAMS, 1982
- Anolis vescus GARRIDO & HEDGES, 1992
- Anomochilus weberi (LIDTH DE JEUDE, 1890)
- Anotosaura collaris AMARAL, 1933
- Apalone ferox (SCHNEIDER, 1783)
- Apalone mutica (LESUEUR, 1827)
- Apalone spinifera (LESUEUR, 1827)
- Apathya cappadocica (WERNER, 1902)
- Apathya yassujica (NILSON, RASTEGAR-POUYANI, RASTEGAR-POUYANI & ANDRÉN, 2003)
- Aphaniotis fusca (PETERS, 1864)
- Aphaniotis kumbakarna HARVEY, SIDIK, KURNIAWAN & SMITH, 2025
- Aphaniotis ornata (LIDTH DE JEUDE, 1893)
- Apostolepis arenaria RODRIGUES, 1993
- Apostolepis borellii PERACCA, 1904
- Apostolepis cearensis GOMES, 1915
- Apostolepis dimidiata (JAN, 1862)
- Apostolepis gaboi RODRIGUES, 1993
- Apostolepis goiasensis PRADO, 1942
- Apostolepis niceforoi AMARAL, 1935
- Apostolepis phillipsae HARVEY, 1999
- Apostolepis polylepis AMARAL, 1922
- Aprasia parapulchella KLUGE, 1974
- Argyrophis diardii (SCHLEGEL, 1839)
- Arizona elegans KENNICOTT, 1859
- Arizona occidentalis BLANCHARD, 1924
- Asaccus andersoni TORKI, FATHINIA, ROSTAMI, GHARZI & NAZARI-SERENJEH, 2011
- Asaccus barani TORKI, AHMADZADEH, ILGAZ, AVCI & KUMLUTAS, 2011
- Asaccus caudivolvulus ARNOLD & GARDNER, 1994
- Asaccus elisae (WERNER, 1896)
- Asaccus gallagheri (ARNOLD, 1972)
- Asaccus griseonotus DIXON & ANDERSON, 1973
- Asaccus ingae EISELT, 1973
- Asaccus iranicus TORKI, AHMADZADEH, ILGAZ, AVCI & KUMLUTAS, 2011
- Asaccus kermanshahensis RASTEGAR-POUYANI, 1996
- Asaccus kurdistanensis RASTEGAR-POUYANI, NILSON & FAIZI, 2006
- Asaccus montanus GARDNER, 1994
- Asaccus platyrhynchus ARNOLD & GARDNER, 1994
- Asaccus saffinae AFRASIAB & MOHAMAD, 2009
- Asaccus zagrosicus TORKI, AHMADZADEH, ILGAZ, AVCI & KUMLUTAS, 2011
- Aspidelaps lubricus (LAURENTI, 1768)
- Aspidelaps scutatus (SMITH, 1849)
- Aspidoscelis exsanguis (LOWE, 1956)
- Aspidoscelis gularis (BAIRD & GIRARD, 1852)
- Aspidoscelis guttatus (WIEGMANN, 1834)
- Aspidoscelis sackii (WIEGMANN, 1834)
- Aspidoscelis sonorae (LOWE & WRIGHT, 1964)
- Aspidoscelis tesselatus (SAY, 1822)
- Aspidoscelis tigris (BAIRD & GIRARD, 1852)
- Aspidoscelis velox (SPRINGER, 1928)
- Asthenodipsas tropidonota (LIDTH DE JEUDE, 1923)
- Atheris broadleyi LAWSON, 1999
- Atheris hirsuta ERNST & RÖDEL, 2002
- Atheris mongoensis COLLET & TRAPE, 2020
- Atractaspis leucomelas BOULENGER, 1895
- Atractus altagratiae PASSOS & FERNANDES, 2008
- Atractus andinus PRADO, 1944
- Atractus arangoi PRADO, 1940
- Atractus biseriatus PRADO, 1941
- Atractus bocki WERNER, 1909
- Atractus bocourti BOULENGER, 1894
- Atractus boimirim PASSOS, PRUDENTE & LYNCH, 2016
- Atractus collaris PERACCA, 1897
- Atractus crassicaudatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Atractus duidensis ROZE, 1961
- Atractus flammigerus (BOIE, 1827)
- Atractus guentheri (WUCHERER, 1861)
- Atractus hostilitractus MYERS, 2003
- Atractus indistinctus PRADO, 1940
- Atractus major BOULENGER, 1894
- Atractus manizalesensis PRADO, 1940
- Atractus melas BOULENGER, 1908
- Atractus nigriventris AMARAL, 1933
- Atractus obesus MARX, 1960
- Atractus pantostictus FERNANDES & PUORTO, 1993
- Atractus paraguayensis WERNER, 1924
- Atractus pauciscutatus SCHMIDT & WALKER, 1943
- Atractus punctiventris AMARAL, 1933
- Atractus sanguineus PRADO, 1944
- Atractus tamessari KOK, 2006
- Atractus variegatus PRADO, 1942
- Atractus wagleri PRADO, 1945
- Atretium schistosum (DAUDIN, 1803)
- Bachia barbouri BURT & BURT, 1931
- Bachia blairi (DUNN, 1940)
- Bachia bresslaui (AMARAL, 1935)
- Bachia intermedia NOBLE, 1921
- Bachia pyburni KIZIRIAN & MCDIARMID, 1998
- Bachia trisanale (COPE, 1868)
- Baliodryas steinbachi (BOULENGER, 1905)
- Barisia jonesi GUILLETTE & SMITH, 1982
- Batagur baska (GRAY, 1831)
- Batagur dhongoka (GRAY, 1834)
- Batagur kachuga (GRAY, 1831)
- Batagur trivittata (DUMÉRIL & BIBRON, 1835)
- Bitis albanica HEWITT, 1937
- Bitis armata (SMITH, 1826)
- Bitis cornuta (DAUDIN, 1803)
- Bitis heraldica (BOCAGE, 1889)
- Bitis inornata (SMITH, 1838)
- Bitis rubida BRANCH, 1997
- Blanus alexandri SINDACO, KORNILIOS, SACCHI & LYMBERAKIS, 2014
- Blanus aporus WERNER, 1898
- Blanus strauchi (BEDRIAGA, 1884)
- Blanus tingitanus BUSACK, 1988
- Boa constrictor LINNAEUS, 1758
- Boa imperator DAUDIN, 1803
- Boa orophias LINNAEUS, 1758
- Boiga cyanea (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga cynodon (BOIE, 1827)
- Boiga dendrophila (BOIE, 1827)
- Boiga forsteni (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Boiga gocool (GRAY, 1834)
- Boiga irregularis (BECHSTEIN, 1802)
- Boiga melanota (BOULENGER, 1896)
- Boiga multifasciata (BLYTH, 1861)
- Boiga multomaculata (BOIE, 1827)
- Boiga nuchalis (GÜNTHER, 1875)
- Boiga quincunciata (WALL, 1908)
- Boiga saengsomi NUTAPHAND, 1985
- Boiga siamensis NUTAPHAND, 1971
- Boiga stoliczkae (WALL, 1909)
- Boiga trigonata (SCHNEIDER, 1802)
- Boiga westermanni (REINHARDT, 1863)
- Boiruna maculata (BOULENGER, 1896)
- Bothriechis bicolor (BOCOURT, 1868)
- Bothriechis guifarroi TOWNSEND, MEDINA-FLORES, WILSON, JADIN & AUSTIN, 2013
- Bothriechis nigroadspersus (STEINDACHNER, 1870)
- Bothriechis nitidus (GÜNTHER, 1859)
- Bothriechis nubestris DOAN, MASON, CASTOE, SASA & PARKINSON, 2016
- Bothriechis schlegelii (BERTHOLD, 1846)
- Bothriechis thalassinus CAMPBELL & SMITH, 2000
- Bothriechis torvus (POSADA-ARANGO, 1889)
- Bothrocophias hyoprora (AMARAL, 1935)
- Bothrops alternatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Bothrops asper (GARMAN, 1883)
- Bothrops atrox (LINNAEUS, 1758)
- Bothrops bilineatus (WIED-NEUWIED, 1821)
- Bothrops brazili HOGE, 1954
- Bothrops caribbaeus (GARMAN, 1887)
- Bothrops cotiara (GOMES, 1913)
- Bothrops diporus COPE, 1862
- Bothrops fonsecai HOGE & BELLUOMINI, 1959
- Bothrops germanoi BARBO, BOOKER, DUARTE, CHALUPPE, PORTES-JUNIOR, FRANCO & GRAZZIOTIN, 2022
- Bothrops insularis (AMARAL, 1922)
- Bothrops itapetiningae (BOULENGER, 1907)
- Bothrops jararaca (WIED-NEUWIED, 1824)
- Bothrops lanceolatus (BONNATERRE, 1790)
- Bothrops leucurus WAGLER, 1824
- Bothrops lutzi (MIRANDA-RIBEIRO, 1915)
- Bothrops marajoensis HOGE, 1966
- Bothrops mattogrossensis AMARAL, 1925
- Bothrops moojeni HOGE, 1966
- Bothrops neuwiedi WAGLER, 1824
- Bothrops oligolepis (WERNER, 1901)
- Bothrops otavioi BARBO, GRAZZIOTIN, SAZIMA, MARTINS & SAWAYA, 2012
- Bothrops pauloensis AMARAL, 1925
- Bothrops pubescens (COPE, 1870)
- Bothrops sanctaecrucis HOGE, 1966
- Bothrops taeniatus WAGLER, 1824
- Bronchocela hayeki (MÜLLER, 1928)
- Brookesia tedi SCHERZ, KÖHLER, RAKOTOARISON, GLAW & VENCES, 2019
- Bufoniceps laungwalaensis (SHARMA, 1978)
- Bungarus bungaroides (CANTOR, 1839)
- Bungarus caeruleus (SCHNEIDER, 1801)
- Bungarus candidus (LINNAEUS, 1758)
- Bungarus fasciatus (SCHNEIDER, 1801)
- Bungarus lividus CANTOR, 1839
- Bungarus niger WALL, 1908
- Bungarus sindanus BOULENGER, 1897
- Bungarus walli WALL, 1907
- Bunopus orientalis (BLANFORD, 1876)
- Caiman latirostris (DAUDIN, 1801)
- Caiman yacare (DAUDIN, 1801)
- Calamaria annamensis BOURRET, 1937
- Calamaria muelleri BOULENGER, 1896
- Calamaria pavimentata DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Calamodontophis paucidens (AMARAL, 1936)
- Calliophis melanurus (SHAW, 1802)
- Callopistes flavipunctatus (DUMÉRIL & BIBRON, 1839)
- Calodactylodes aureus (BEDDOME, 1870)
- Calodactylodes illingworthorum DERANIYAGALA, 1953
- Calotes bhutanensis BISWAS, 1975
- Calotes calotes (LINNAEUS, 1758)
- Calotes ceylonensis MÜLLER, 1887
- Calotes emma GRAY, 1845
- Calotes irawadi ZUG, BROWN, SCHULTE & VINDUM, 2006
- Calotes jerdoni GÜNTHER, 1870
- Calotes liolepis BOULENGER, 1885
- Calotes maria GRAY, 1845
- Calotes mystaceus DUMÉRIL & BIBRON, 1837
- Calotes nigrilabris PETERS, 1860
- Calotes paulus SMITH, 1935
- Calotes versicolor (DAUDIN, 1802)
- Calotes vultuosus (HARLAN, 1825)
- Calotes yunnanensis ANNANDALE, 1905
- Calumma nasutum (DUMÉRIL & BIBRON, 1836)
- Caretta caretta (LINNAEUS, 1758)
- Carettochelys insculpta RAMSAY, 1886
- Carlia jarnoldae COVACEVICH & INGRAM, 1975
- Carphophis amoenus (SAY, 1825)
- Carphophis vermis (KENNICOTT, 1859)
- Cenaspis aenigma CAMPBELL, SMITH & HALL, 2018
- Ceratophora aspera GÜNTHER, 1864
- Ceratophora stoddartii GRAY, 1834
- Ceratophora tennentii GÜNTHER, 1861
- Cercophis auratus (SCHLEGEL, 1837)
- Cercosaura hypnoides DOAN & LAMAR, 2012
- Cercosaura phelpsorum (LANCINI, 1968)
- Cerrophidion sasai JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
- Cerrophidion tzotzilorum (CAMPBELL, 1985)
- Cerrophidion wilsoni JADIN, TOWNSEND, CASTOE & CAMPBELL, 2012
- Chalcides humilis BOULENGER, 1896
- Chalcides mionecton (BOETTGER, 1874)
- Chalcides ocellatus (FORSKÅL, 1775)
- Chalcides polylepis BOULENGER, 1890
- Chalcides ragazzii BOULENGER, 1890
- Chalcidoseps thwaitesi (GÜNTHER, 1872)
- Chamaeleo chamaeleon (LINNAEUS, 1758)
- Chamaeleo zeylanicus LAURENTI, 1768
- Chapinophis xanthocheilus CAMPBELL & SMITH, 1998
- Charina bottae (BLAINVILLE, 1835)
- Chelodina gunaleni MCCORD & JOSEPH-OUNI, 2007
- Chelodina longicollis (SHAW, 1794)
- Chelonia mydas (LINNAEUS, 1758)
- Chelus orinocensis VARGAS-RAMÍREZ, CABALLERO, MORALES-BETANCOURT, LASSO, AMAYA, MARTÎNEZ, SILVA-VIANA, VOGT, PIRES-FARIAS, HRBEK, CAMPBELL & FRITZ, 2020
- Chersodromus nigrum CANSECO-MÁRQUEZ, RAMÍREZ-GONZÁLEZ & CAMPBELL, 2018
- Chironius carinatus (LINNAEUS, 1758)
- Chironius cochranae HOGE & ROMANO, 1969
- Chironius exoletus (LINNAEUS, 1758)
- Chironius flavolineatus (BOETTGER, 1885)
- Chironius fuscus (LINNAEUS, 1758)
- Chironius gouveai ENTIAUSPE-NETO, LÚCIO-LYRA, KOCH, MARQUES-QUINTELA, DIESEL-ABEGG & LOEBMANN, 2020
- Chironius laevicollis (WIED-NEUWIED, 1824)
- Chironius monticola ROZE, 1952
- Chironius multiventris SCHMIDT & WALKER, 1943
- Chironius quadricarinatus (BOIE, 1827)
- Chironius scurrula (WAGLER, 1824)
- Chitra chitra NUTAPHAND, 1986
- Chitra indica (GRAY, 1831)
- Chitra vandijki MCCORD & PRITCHARD, 2003
- Chlorosoma dunupyana MELO-SAMPAIO, PASSOS, MARTINS, JENNINGS, MOURA-LEITE, MORATO, VENEGAS, CHÁVEZ, VENÂNCIO & SOUZA, 2020
- Chrysemys picta (SCHNEIDER, 1783)
- Chrysopelea ornata (SHAW, 1802)
- Clelia clelia (DAUDIN, 1803)
- Clemmys guttata (SCHNEIDER, 1792)
- Cnemaspis adangrawi AMPAI, RUJIRAWAN, WOOD, STUART & AOWPHOL, 2019
- Cnemaspis assamensis DAS & SENGUPTA, 2000
- Cnemaspis dezwaani DAS, 2005
- Cnemaspis indica GRAY, 1846
- Cnemaspis kandiana (KELAART, 1852)
- Cnemaspis kawminiae KARUNARATHNA, DE SILVA, GABADAGE, KARUNARATHNA, WICKRAMASINGHE, UKUWELA & BAUER, 2019
- Cnemaspis limayei SAYYED, PYRON & DILEEPKUMAR, 2018
- Cnemaspis lokugei KARUNARATHNA, DE SILVA, GABADAGE, BOTEJUE, MADAWALA & UKUWELA, 2021
- Cnemaspis peninsularis GRISMER, WOOD, ANUAR, RIYANTO, AHMAD, MUIN, SUMONTHA, GRISMER, ONN, QUAH & PAUWELS, 2014
- Cnemaspis rajabasa AMARASINGHE, HARVEY, RIYANTO & SMITH, 2015
- Cnemaspis tapanuli ISKANDAR, MCGUIRE & AMARASINGHE, 2017
- Cnemaspis tarutaoensis AMPAI, RUJIRAWAN, WOOD, STUART & AOWPHOL, 2019
- Cnemaspis tropidogaster (BOULENGER, 1885)
- Cnemaspis yercaudensis DAS & BAUER, 2000
- Cnemidophorus duellmani MCCRANIE & HEDGES, 2013
- Cnemidophorus lemniscatus (LINNAEUS, 1758)
- Coelognathus erythrurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Coelognathus helena (DAUDIN, 1803)
- Coelognathus radiatus (BOIE, 1827)
- Coleodactylus brachystoma (AMARAL, 1935)
- Coleonyx brevis STEJNEGER, 1893
- Coleonyx variegatus (BAIRD, 1858)
- Colobodactylus taunayi AMARAL, 1933
- Colobosaura kraepelini (WERNER, 1910)
- Colobosaura modesta (REINHARDT & LÜTKEN, 1862)
- Coluber constrictor LINNAEUS, 1758
- Coniophanes alvarezi CAMPBELL, 1989
- Coniophanes fissidens (GÜNTHER, 1858)
- Conopsis acuta (COPE, 1886)
- Conopsis lineata (KENNICOTT, 1859)
- Cophosaurus texanus TROSCHEL, 1852
- Cophotis ceylanica PETERS, 1861
- Corallus cookii GRAY, 1842
- Corallus cropanii (HOGE, 1953)
- Corallus hortulana (LINNAEUS, 1758)
- Coryphophylax subcristatus (BLYTH, 1860)
- Craspedocephalus andalasensis (DAVID, VOGEL, VIJAYAKUMAR & VIDAL, 2006)
- Craspedocephalus brongersmai (HOGE, 1969)
- Craspedocephalus gramineus (SHAW, 1802)
- Craspedocephalus trigonocephalus (DONNDORFF, 1798)
- Cristidorsa otai (MAHONY, 2009)
- Cristidorsa planidorsata (JERDON, 1870)
- Crocodylus niloticus LAURENTI, 1768
- Crocodylus porosus SCHNEIDER, 1801
- Crotalus adamanteus PALISOT DE BEAUVOIS, 1799
- Crotalus armstrongi CAMPBELL, 1979
- Crotalus basiliscus (COPE, 1864)
- Crotalus campbelli BRYSON JR, LINKEM, DORCAS, LATHROP, JONES, ALVARADO-DÍAZ, GRÜNWALD & MURPHY, 2014
- Crotalus cerastes HALLOWELL, 1854
- Crotalus cerberus (COUES, 1875)
- Crotalus concolor WOODBURY, 1929
- Crotalus durissus LINNAEUS, 1758
- Crotalus ericsmithi CAMPBELL & FLORES-VILLELA, 2008
- Crotalus exiguus CAMPBELL & ARMSTRONG, 1979
- Crotalus helleri MEEK, 1905
- Crotalus lutosus KLAUBER, 1930
- Crotalus mitchellii (COPE, 1861)
- Crotalus oreganus HOLBROOK, 1840
- Crotalus polisi MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
- Crotalus pyrrhus (COPE, 1866)
- Crotalus ruber COPE, 1892
- Crotalus scutulatus (KENNICOTT, 1861)
- Crotalus thalassoporus MEIK, SCHAACK, FLORES-VILLELA & STREICHER, 2018
- Crotalus vegrandis KLAUBER, 1941
- Crotalus viridis (RAFINESQUE, 1818)
- Crotaphytus bicinctores SMITH & TANNER, 1972
- Crotaphytus collaris (SAY, 1822)
- Cryptophis boschmai (BRONGERSMA & KNAAP VAN MEEUWEN, 1964)
- Cryptophis nigrescens (GÜNTHER, 1862)
- Cryptophis nigrostriatus (KREFFT, 1864)
- Cryptophis pallidiceps (GÜNTHER, 1858)
- Ctenophorus mirrityana MCLEAN, MOUSSALLI, SASS, STUART-FOX, 2013
- Ctenosaura hemilopha (COPE, 1863)
- Ctenotus eutaenius STORR, 1981
- Cuora amboinensis (DAUDIN, 1801)
- Cuora couro (SCHWEIGGER, 1812)
- Cuora lineata MCCORD & PHILIPPEN, 1998
- Cuora mouhotii (GRAY, 1862)
- Cuora praschagi BLANCK, GAILLARD, PROTIVA, WHEATLEY, SHI, LIU, RAY & ANDERS, 2023
- Cyclanorbis elegans (GRAY, 1869)
- Cyclanorbis senegalensis (DUMÉRIL & BIBRON, 1835)
- Cyclemys dentata (GRAY, 1831)
- Cyclemys gemeli FRITZ, GUICKING, AUER, SOMMER, WINK & HUNDSDÖRFER, 2008
- Cycloderma aubryi (DUMÉRIL, 1856)
- Cycloderma frenatum PETERS, 1854
- Cyclura cornuta (BONNATERRE, 1789)
- Cyclura onchiopsis (COPE, 1885)
- Cyclura pinguis BARBOUR, 1917
- Cyclura stejnegeri BARBOUR & NOBLE, 1916
- Cylindrophis melanotus WAGLER, 1828
- Cyrtodactylus adleri DAS, 1997
- Cyrtodactylus aequalis BAUER, 2003
- Cyrtodactylus annapurnaensis BHATTARAI, GAUTAM, PRASAD NEUPANE, KHANDEKAR, THACKERAY, AGARWAL, TILLACK, OLSON, HOGAN & WRIGHT, 2025
- Cyrtodactylus bhupathyi AGARWAL, MAHONY, GIRI, CHAITANYA & BAUER, 2018
- Cyrtodactylus chitwanensis BHATTARAI, GAUTAM, PRASAD NEUPANE, KHANDEKAR, THACKERAY, AGARWAL, TILLACK, OLSON, HOGAN & WRIGHT, 2025
- Cyrtodactylus chure BHATTARAI, GAUTAM, NEUPANE, KHANDEKAR, THACKERAY, AGARWAL, OLSON, HOGAN & WRIGHT, 2025
- Cyrtodactylus collegalensis (BEDDOME, 1870)
- Cyrtodactylus consobrinus (PETERS, 1871)
- Cyrtodactylus derongo BROWN & PARKER, 1973
- Cyrtodactylus fasciolatus (BLYTH, 1861)
- Cyrtodactylus gubernatoris (ANNANDALE, 1913)
- Cyrtodactylus gunungsenyumensis GRISMER, WOOD, ANUAR, DAVIS, COBOS & MURDOCH, 2016
- Cyrtodactylus hitchi RIYANTO, KURNIATI & ENGILIS, 2016
- Cyrtodactylus hutan DAVIS, NASHRIQ, WOYTEK, WIKRAMANAYAKE, BAUER, KARIN, BRENNAN, ISKANDAR & DAS, 2023
- Cyrtodactylus huynhi NGO & BAUER, 2008
- Cyrtodactylus jellesmae (BOULENGER, 1897)
- Cyrtodactylus jeyporensis (BEDDOME, 1878)
- Cyrtodactylus karanshahi BHATTARAI, GAUTAM, PRASAD NEUPANE, KHANDEKAR, THACKERAY, AGARWAL, TILLACK, OLSON, HOGAN & WRIGHT, 2025
- Cyrtodactylus khasiensis (JERDON, 1870)
- Cyrtodactylus makwanpurgadhiensis BHATTARAI, GAUTAM, NEUPANE, KHANDEKAR, THACKERAY, AGARWAL, OLSON, HOGAN & WRIGHT, 2025
- Cyrtodactylus martinstolli (DAREVSKY, HELFENBERGER, ORLOV & SHAH, 1998)
- Cyrtodactylus nagalandensis AGARWAL, MAHONY, GIRI, CHAITANYA & BAUER, 2018
- Cyrtodactylus nepalensis (SCHLEICH & KÄSTLE, 1998)
- Cyrtodactylus peninsularis GRISMER, KAATZ, GRISMER, NGUYEN, GRERGORY, WOOD, MURDOCH, ANUAR, ONN, MUIN, PAWANGKHANANT, SUWANNAPOOM, POYARKOV & QUAH, 2025
- Cyrtodactylus psarops HARVEY, O'CONNELL, BARRAZA, RIYANTO, KURNIAWAN & SMITH, 2015
- Cyrtodactylus quadrivirgatus TAYLOR, 1962
- Cyrtodactylus rubidus (BLYTH, 1861)
- Cyrtodactylus semicinctus HARVEY, O'CONNELL, BARRAZA, RIYANTO, KURNIAWAN & SMITH, 2015
- Cyrtodactylus septentrionalis AGARWAL, MAHONY, GIRI, CHAITANYA & BAUER, 2018
- Cyrtodactylus slowinskii BAUER, 2002
- Cyrtodactylus stellatus TERMPRAYOON, RUJIRAWAN, AMPAI, WOOD & AOWPHOL, 2021
- Cyrtodactylus tahuna RIYANTO, ARIDA & KOCH, 2018
- Cyrtodactylus teraiensis GAUTAM, BHATTARAI, NEUPANE, POKHERAL, THACKERAY, KHANDEKAR, CYRIAC & AGARWAL, 2026
- Cyrtodactylus triedrus (GÜNTHER, 1864)
- Cyrtodactylus wangkulangkulae SUMONTHA, PAUWELS, SUWANNAKARN, NUTATHEERA & SODOB, 2014
- Cyrtodactylus yakhuna (DERANIYAGALA, 1945)
- Cyrtopodion kachhense (STOLICZKA, 1872)
- Daboia russelii (SHAW & NODDER, 1797)
- Daboia siamensis (SMITH, 1917)
- Darevskia adjarica (DAREVSKY & EISELT, 1980)
- Darevskia armeniaca (MÉHELY, 1909)
- Darevskia bendimahiensis (SCHMIDTLER, EISELT & DAREVSKY, 1994)
- Darevskia bithynica (MÉHELY, 1909)
- Darevskia brauneri (MÉHELY, 1909)
- Darevskia chlorogaster (BOULENGER, 1908)
- Darevskia dahli (DAREVSKY, 1957)
- Darevskia defilippii (CAMERANO, 1877)
- Darevskia derjugini (NIKOLSKY, 1898)
- Darevskia dryada (DAREVSKY & TUNIYEV, 1997)
- Darevskia josefschmidtleri ARRIBAS, CANDAN, KORNILIOS, AYAZ, KUMLUTAŞ, GÜL, YILMAZ, CAYNAK & ILGAZ, 2022
- Darevskia lindholmi (SZCZERBAK, 1962)
- Darevskia mirabilis ARRIBAS, ILGAZ, KUMLUTAŞ, DURMUŞ, AVCI & ÜZÜM, 2013
- Darevskia mixta (MÉHELY, 1909)
- Darevskia nairensis (DAREVSKY, 1967)
- Darevskia obscura (LANTZ & CYRÉN, 1936)
- Darevskia parvula (LANTZ & CYRÉN, 1913)
- Darevskia portschinskii (KESSLER, 1878)
- Darevskia praticola (EVERSMANN, 1834)
- Darevskia raddei (BOETTGER, 1892)
- Darevskia rostombekowi (DAREVSKY, 1957)
- Darevskia rudis (BEDRIAGA, 1886)
- Darevskia sapphirina (SCHMIDTLER, EISELT & DAREVSKY, 1994)
- Darevskia saxicola (EVERSMANN, 1834)
- Darevskia spitzenbergerae (EISELT, DAREVSKY & SCHMIDTLER, 1992)
- Darevskia steineri (EISELT, 1995)
- Darevskia tuniyevi ARRIBAS, CANDAN, KURNAZ, KUMLUTAS, CAYNAK & ILGAZ, 2022
- Darevskia unisexualis (DAREVSKY, 1966)
- Darevskia uzzelli (DAREVSKY & DANIELYAN, 1977)
- Darevskia valentini (BOETTGER, 1892)
- Dasia nicobarensis BISWAS & SANYAL, 1977
- Delma australis KLUGE, 1974
- Delma fraseri GRAY, 1831
- Delma impar (FISCHER, 1882)
- Delma inornata KLUGE, 1974
- Delma molleri LÜTKEN, 1863
- Delma nasuta KLUGE, 1974
- Delma plebeia DE VIS, 1888
- Delma vescolineata MAHONY, CUTAJAR & ROWLEY, 2022
- Demansia psammophis (SCHLEGEL, 1837)
- Dendragama australis HARVEY, SHANEY, SIDIK, KURNIAWAN & SMITH, 2017
- Dendragama dioidema HARVEY, SHANEY, SIDIK, KURNIAWAN & SMITH, 2017
- Dendragama schneideri (AHL, 1926)
- Dendrelaphis cyanochloris (WALL, 1921)
- Dendrelaphis formosus (BOIE, 1827)
- Dendrelaphis grandoculis (BOULENGER, 1890)
- Dendrelaphis pictus (GMELIN, 1789)
- Dendrelaphis proarchos (WALL, 1909)
- Dendrelaphis tristis (DAUDIN, 1803)
- Dendrelaphis wickrorum DANUSHKA, KANISHKA, AMARASINGHE, VOGEL & SENEVIRATNE, 2020
- Dermochelys coriacea (VANDELLI, 1761)
- Diadophis punctatus (LINNAEUS, 1766)
- Dibamus dezwaani DAS & LIM, 2005
- Dibamus nicobaricum (STEINDACHNER, 1867)
- Dibamus oetamai PRASETYO, YUDHA, AMARASINGHE, INEICH, GILLESPIE & RIYANTO, 2025
- Dibernardia persimilis (COPE, 1869)
- Dinodon fasciatus (ANDERSON, 1879)
- Dinodon gammiei (BLANFORD, 1878)
- Dinodon septentrionalis (GÜNTHER, 1875)
- Diplodactylus tessellatus (GÜNTHER, 1875)
- Diploderma aorun WANG, JIANG, ZHENG, XIE, CHE & SILER, 2020
- Diploderma vela (WANG, JIANG & CHE, 2015)
- Diplolaemus bibronii BELL, 1843
- Diplolaemus crypticus VRDOLJAK, AVILA, MOLINA, BENITEZ-VEYRA & MORANDO, 2026
- Diplolaemus varicolor VRDOLJAK, AVILA, MOLINA, BENITEZ-VEYRA & MORANDO, 2026
- Dipsadoboa brevirostris (STERNFELD, 1908)
- Dipsas albifrons (SAUVAGE, 1884)
- Dipsas andiana (BOULENGER, 1896)
- Dipsas baliomelas HARVEY, 2008
- Dipsas elegans (BOULENGER, 1896)
- Dipsas ellipsifera (BOULENGER, 1898)
- Dipsas indica LAURENTI, 1768
- Dipsas latifrontalis (BOULENGER, 1905)
- Dipsas oneilli (ROSSMAN & THOMAS, 1979)
- Dipsas palmeri (BOULENGER, 1912)
- Dipsas peruana (BOETTGER, 1898)
- Dipsas pratti (BOULENGER, 1897)
- Dipsas sanctijoannis (BOULENGER, 1911)
- Dipsas vagrans (DUNN, 1923)
- Dipsas vagus (JAN, 1863)
- Dipsosaurus dorsalis (BAIRD & GIRARD, 1852)
- Dixonius kaweesaki SUMONTHA, CHOMNGAM, PHANAMPHON, PAWANGKHANANT, VIRIYAPANON, THANAPRAYOTSAK & PAUWELS, 2017
- Dogania subplana (GEOFFROY SAINT-HILAIRE, 1809)
- Dolichophis caspius (GMELIN, 1789)
- Dolichophis jugularis (LINNAEUS, 1758)
- Dopasia gracilis (GRAY, 1845)
- Draco iskandari MCGUIRE, BROWN, MUMPUNI, RIYANTO & ANDAYANI, 2007
- Draco maculatus (GRAY, 1845)
- Draco melanopogon BOULENGER, 1887
- Draco norvillii ALCOCK, 1895
- Draco walkeri BOULENGER, 1891
- Drepanoides anomalus (JAN, 1863)
- Dromicodryas bernieri (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Dromicodryas quadrilineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymarchon corais (BOIE, 1827)
- Drymarchon couperi (HOLBROOK, 1842)
- Drymarchon melanurus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Drymoluber brazili (GOMES, 1918)
- Drymoluber dichrous (PETERS, 1863)
- Dryocalamus davisonii (BLANFORD, 1878)
- Dryophylax corocoroensis (GORZULA & AYARZAGÜENA, 1996)
- Ebenavia boettgeri BOULENGER, 1885
- Ebenavia robusta HAWLITSCHEK, SCHERZ, RUTHENSTEINER, CROTTINI & GLAW, 2018
- Ebenavia safari HAWLITSCHEK, SCHERZ, RUTHENSTEINER, CROTTINI & GLAW, 2018
- Ebenavia tuelinae HAWLITSCHEK, SCHERZ, RUTHENSTEINER, CROTTINI & GLAW, 2018
- Echinanthera cephalostriata DI BERNARDO, 1996
- Echinanthera melanostigma (WAGLER, 1824)
- Echinanthera undulata (WIED-NEUWIED, 1824)
- Echinosaura embera VÁSQUEZ-RESTREPO & DAZA, 2025
- Echis borkini CHERLIN, 1990
- Echis carinatus (SCHNEIDER, 1801)
- Echis coloratus GÜNTHER, 1878
- Echis hughesi CHERLIN, 1990
- Echis jogeri CHERLIN, 1990
- Echis khosatzkii CHERLIN, 1990
- Echis leucogaster ROMAN, 1972
- Echis pyramidum (GEOFFROY SAINT-HILAIRE, 1827)
- Egernia roomi (WELLS & WELLINGTON, 1985)
- Egernia stokesii (GRAY, 1845)
- Eirenis collaris (MÉNÉTRIES, 1832)
- Eirenis modestus (MARTIN, 1838)
- Eirenis occidentalis RAJABIZADEH, NAGY, ADRIAENS, AVCI, MASROOR, SCHMIDTLER, NAZAROV, ESMAEILI & CHRISTIAENS, 2015
- Eirenis persicus (ANDERSON, 1872)
- Eirenis punctatolineatus (BOETTGER, 1892)
- Elaphe cantoris (BOULENGER, 1894)
- Elaphe climacophora (BOIE, 1826)
- Elaphe hodgsonii (GÜNTHER, 1860)
- Elaphe quatuorlineata (LACÉPÈDE, 1789)
- Elaphe sauromates (PALLAS, 1811)
- Elaphe taeniura COPE, 1861
- Elaphe urartica JABLONSKI, KUKUSHKIN, AVCI, BUNYATOVA, ILGAZ, TUNIYEV & JANDZIK, 2019
- Elapomorphus quinquelineatus (RADDI, 1820)
- Elapsoidea sundevallii SMITH, 1848
- Elgaria coerulea (WIEGMANN, 1828)
- Elgaria multicarinata (BLAINVILLE, 1835)
- Elseya rhodini THOMSON, AMEPOU, ANAMIATO & GEORGES, 2015
- Emoia digul BROWN, 1991
- Emoia klossi (BOULENGER, 1914)
- Emoia tongana (WERNER, 1899)
- Emys orbicularis (LINNAEUS, 1758)
- Enhydris enhydris (SCHNEIDER, 1799)
- Enyalioides peruvianus KÖHLER, 2003
- Enyalius leechii (BOULENGER, 1885)
- Epicrates assisi MACHADO, 1944
- Epicrates cenchria (LINNAEUS, 1758)
- Epicrates crassus COPE, 1862
- Epictia albifrons (WAGLER, 1824)
- Epictia antoniogarciai KOCH, VENEGAS & BÖHME, 2015
- Epictia bakewelli (OLIVER, 1937)
- Epictia borapeliotes (VANZOLINI, 1996)
- Epictia goudotii (DUMÉRIL & BIBRON, 1844)
- Epictia magnamaculata (TAYLOR, 1940)
- Epictia phenops (COPE, 1875)
- Epictia resetari WALLACH, 2016
- Epictia rioignis KOCH, MARTINS & SCHWEIGER, 2019
- Epictia schneideri WALLACH, 2016
- Epictia septemlineata KOCH, VENEGAS & BÖHME, 2015
- Epictia subcrotilla (KLAUBER, 1939)
- Epictia tenella (KLAUBER, 1939)
- Epictia vanwallachi KOCH, VENEGAS & BÖHME, 2015
- Eremias acutirostris (BOULENGER, 1887)
- Eremias arguta (PALLAS, 1773)
- Eremias nigrocellata NIKOLSKY, 1896
- Eremias suphani BASOGLU & HELLMICH, 1968
- Eretmochelys imbricata (LINNAEUS, 1766)
- Erythrolamprus aesculapii (LINNAEUS, 1758)
- Erythrolamprus albiventris (JAN, 1863)
- Erythrolamprus almadensis (WAGLER, 1824)
- Erythrolamprus cobella (LINNAEUS, 1758)
- Erythrolamprus epinephelus (COPE, 1862)
- Erythrolamprus festae (PERACCA, 1897)
- Erythrolamprus fraseri (BOULENGER, 1894)
- Erythrolamprus frenatus (WERNER, 1909)
- Erythrolamprus guentheri GARMAN, 1883
- Erythrolamprus ingeri (ROZE, 1958)
- Erythrolamprus lamonae (DUNN, 1944)
- Erythrolamprus macrosomus (AMARAL, 1936)
- Erythrolamprus melanotus (SHAW, 1802)
- Erythrolamprus miliaris (LINNAEUS, 1758)
- Erythrolamprus mossoroensis (HOGE & LIMA-VERDE, 1973)
- Erythrolamprus poecilogyrus (WIED-NEUWIED, 1824)
- Erythrolamprus pyburni (MARKEZICH & DIXON, 1979)
- Erythrolamprus reginae (LINNAEUS, 1758)
- Erythrolamprus subocularis (BOULENGER, 1902)
- Erythrolamprus taeniurus (TSCHUDI, 1845)
- Erythrolamprus typhlus (LINNAEUS, 1758)
- Erythrolamprus viridis (GÜNTHER, 1862)
- Eryx conicus (SCHNEIDER, 1801)
- Eublepharis hardwickii GRAY, 1827
- Eublepharis macularius (BLYTH, 1854)
- Eumeces schneiderii (DAUDIN, 1802)
- Eumeces zarudnyi NIKOLSKY, 1900
- Eunectes notaeus COPE, 1862
- Eurylepis taeniolata BLYTH, 1854
- Euspondylus paxcorpus DOAN & ADAMS, 2015
- Eutropis andamanensis (SMITH, 1935)
- Eutropis carinata (SCHNEIDER, 1801)
- Eutropis longicaudata (HALLOWELL, 1857)
- Eutropis macularia (BLYTH, 1853)
- Eutropis multifasciata (KUHL, 1820)
- Eutropis quadratilobus (BAUER & GÜNTHER, 1992)
- Eutropis quadricarinata (BOULENGER, 1887)
- Eutropis rudis (BOULENGER, 1887)
- Eutropis rugifera (STOLICZKA, 1870)
- Eutropis tammanna DAS, DE SILVA & AUSTIN, 2008
- Eutropis trivittata (HARDWICKE & GRAY, 1827)
- Eutropis tytleri (THEOBALD, 1868)
- Ferania sieboldii (SCHLEGEL, 1837)
- Fowlea flavipunctata (HALLOWELL, 1860)
- Fowlea piscator (SCHNEIDER, 1799)
- Fowlea sanctijohannis (BOULENGER, 1890)
- Gambelia sila (STEJNEGER, 1890)
- Gambelia wislizenii (BAIRD & GIRARD, 1852)
- Gavialis gangeticus (GMELIN, 1789)
- Gehyra finipunctata DOUGHTY, BAUER, PEPPER, KEOGH & ELLIS, 2018
- Gehyra lauta OLIVER, PRASETYA, TEDESCHI, FENKER, ELLIS, DOUGHTY & MORITZ, 2020
- Gehyra media DOUGHTY, BAUER, PEPPER & KEOGH, 2018
- Gehyra minuta KING, 1982
- Gehyra mutilata (WIEGMANN, 1834)
- Gehyra versicolor HUTCHINSON, SISTROM, DONNELLAN & HUTCHINSON, 2014
- Gekko albomaculatus (GIEBEL, 1861)
- Gekko cicakterbang (GRISMER, WOOD, GRISMER, QUAH, THY, PHIMMACHAK, SIVONGXAY, SEATEUN, STUART, SILER, MULCAHY, ANAMZA & BROWN, 2019)
- Gekko gecko (LINNAEUS, 1758)
- Gekko hokouensis POPE, 1928
- Gekko horsfieldii (GRAY, 1827)
- Gekko japonicus (DUMÉRIL & BIBRON, 1836)
- Gekko monarchus (SCHLEGEL, 1836)
- Gekko nutaphandi BAUER, SUMONTHA & PAUWELS, 2008
- Gekko smithii GRAY, 1842
- Geochelone elegans (SCHOEPFF, 1795)
- Geoclemys hamiltonii (GRAY, 1831)
- Geomyersia glabra GREER & PARKER, 1968
- Geophis annuliferus (BOULENGER, 1894)
- Geophis anocularis DUNN, 1920
- Geophis bicolor GÜNTHER, 1868
- Geophis brachycephalus (COPE, 1871)
- Geophis chalybeus (WAGLER, 1830)
- Geophis championi BOULENGER, 1894
- Geophis dubius (PETERS, 1861)
- Geophis dugesii BOCOURT, 1883
- Geophis godmani BOULENGER, 1894
- Geophis hoffmanni (PETERS, 1859)
- Geophis isthmicus (BOULENGER, 1894)
- Geophis nigroalbus BOULENGER, 1908
- Geophis omiltemanus GÜNTHER, 1893
- Geophis petersii BOULENGER, 1894
- Geophis pyburni CAMPBELL & MURPHY, 1977
- Geophis rhodogaster (COPE, 1868)
- Geophis rostralis (JAN, 1865)
- Geophis ruthveni WERNER, 1925
- Geophis sallaei BOULENGER, 1894
- Geophis sartorii (COPE, 1863)
- Gerrhopilus mirus (JAN, 1860)
- Gloydius brevicaudus (STEJNEGER, 1907)
- Gloydius halys (PALLAS, 1776)
- Gloydius himalayanus (GÜNTHER, 1864)
- Gloydius nepalensis JABLONSKI, TILLACK, TILLACK, PETZOLD, WILZO, DAS, IDREES, BANIYA, MASROOR & HOFMANN, 2026
- Gloydius ussuriensis (EMELIANOV, 1929)
- Gomesophis brasiliensis (GOMES, 1918)
- Gonatodes astralis SCHARGEL, RIVAS, MAKOWSKY, SEÑARIS, NATERA, BARROS, MOLINA & BARRIO-AMORÓS, 2010
- Gonatodes atricucullaris NOBLE, 1921
- Gonatodes caudiscutatus (GÜNTHER, 1859)
- Gonatodes chucuri MENESES-PELAYO & RAMÍREZ, 2020
- Gonatodes falconensis SHREVE, 1947
- Gonatodes hasemani GRIFFIN, 1917
- Gonatodes rayito SCHARGEL, RIVAS, GARCÍA-PÉREZ, RIVERO-BLANCO, CHIPPINDALE & FUJITA, 2017
- Gonatodes rozei RIVERO-BLANCO & SCHARGEL, 2012
- Gongylomorphus borbonicus VINSON, 1969
- Gongylosoma calamaria (GÜNTHER, 1858)
- Gongylosoma frenata (GÜNTHER, 1858)
- Gonocephalus chamaeleontinus (LAURENTI, 1768)
- Gonocephalus doriae PETERS, 1871
- Gonocephalus inauris HARVEY, SARKAR, SIDIK, KURNIAWAN & SMITH, 2023
- Gonocephalus klossi BOULENGER, 1920
- Gonocephalus kuhlii (SCHLEGEL, 1851)
- Gonocephalus lacunosus MANTHEY & DENZER, 1991
- Gonocephalus megalepis (BLEEKER, 1860)
- Gonocephalus pyrius HARVEY, RECH, RIYANTO, KURNIAWAN & SMITH, 2021
- Gonyosoma frenatum (GRAY, 1853)
- Gonyosoma prasinum (BLYTH, 1855)
- Gopherus agassizii (COOPER, 1861)
- Gopherus berlandieri (AGASSIZ, 1857)
- Grypotyphlops acutus (DUMÉRIL & BIBRON, 1844)
- Gymnodactylus geckoides SPIX, 1825
- Gymnophthalmus marconaterai GARCÍA-PÉREZ & SCHARGEL, 2017
- Habrophallos collaris (HOOGMOED, 1977)
- Hardella thurjii (GRAY, 1831)
- Hebius clerki (WALL, 1925)
- Hebius gilhodesi (WALL, 1925)
- Hebius khasiensis (BOULENGER, 1890)
- Hebius modestus (GÜNTHER, 1875)
- Hebius parallelus (BOULENGER, 1890)
- Hebius shantianfangi LIU, WANG, HOU, ZHANG, WANG, ZONG, ZHOU, RAO, DAVID & VOGEL, 2025
- Helicops angulatus (LINNAEUS, 1758)
- Helicops boitata MORAES-DA-SILVA, CECÍLIA AMARO, SALES-NUNES, STRÜSSMANN, TEIXEIRA JR, ANDRADE, SUDRÉ, RECODER, RODRIGUES & CURCIO, 2019
- Helicops danieli AMARAL, 1938
- Helicops gomesi AMARAL, 1922
- Helicops hagmanni ROUX, 1910
- Helicops leopardinus (SCHLEGEL, 1837)
- Helicops modestus GÜNTHER, 1861
- Helicops polylepis GÜNTHER, 1861
- Helicops scalaris JAN, 1865
- Heloderma charlesbogerti CAMPBELL & VANNINI, 1988
- Heloderma suspectum COPE, 1869
- Hemidactylus angulatus HALLOWELL, 1854
- Hemidactylus aquilonius MCMAHAN & ZUG, 2007
- Hemidactylus bowringii (GRAY, 1845)
- Hemidactylus brasilianus (AMARAL, 1935)
- Hemidactylus brookii GRAY, 1845
- Hemidactylus depressus GRAY, 1842
- Hemidactylus flaviviridis RÜPPELL, 1835
- Hemidactylus frenatus DUMÉRIL & BIBRON, 1836
- Hemidactylus garnotii DUMÉRIL & BIBRON, 1836
- Hemidactylus hunae DERANIYAGALA, 1937
- Hemidactylus jubensis BOULENGER, 1895
- Hemidactylus kushmorensis MURRAY, 1884
- Hemidactylus lankae DERANIYAGALA, 1953
- Hemidactylus leschenaultii DUMÉRIL & BIBRON, 1836
- Hemidactylus mabouia (MOREAU DE JONNÈS, 1818)
- Hemidactylus murrayi GLEADOW, 1887
- Hemidactylus parvimaculatus DERANIYAGALA, 1953
- Hemidactylus platyurus (SCHNEIDER, 1797)
- Hemidactylus reticulatus BEDDOME, 1870
- Hemidactylus triedrus (DAUDIN, 1802)
- Hemiphyllodactylus aurantiacus (BEDDOME, 1870)
- Hemiphyllodactylus typus BLEEKER, 1860
- Hemiphyllodactylus zhutangxiangensis AGUNG, GRISMER, GRISMER, QUAH, CHORNELIA, LU & HUGHES, 2021
- Hemorrhois nummifer (REUSS, 1834)
- Heosemys depressa (ANDERSON, 1875)
- Heremites auratus (LINNAEUS, 1758)
- Heremites septemtaeniatus (REUSS, 1834)
- Heremites vittatus (OLIVIER, 1804)
- Herpetoreas platyceps (BLYTH, 1855)
- Herpetoreas sieboldii GÜNTHER, 1860
- Hierophis cypriensis (SCHÄTTI, 1985)
- Hierophis gemonensis (LAURENTI, 1768)
- Hierophis viridiflavus (LACÉPÈDE, 1789)
- Holbrookia elegans BOCOURT, 1874
- Holbrookia lacerata COPE, 1880
- Holbrookia maculata GIRARD, 1851
- Holbrookia subcaudalis AXTELL, 1956
- Holcosus septemlineatus (DUMÉRIL, 1851)
- Holcosus thomasi (SMITH & LAUFE, 1946)
- Homalopsis buccata (LINNAEUS, 1758)
- Hydrodynastes bicinctus (HERMANN, 1804)
- Hydrodynastes gigas (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Hydrophis curtus (SHAW, 1802)
- Hydrophis viperinus (SCHMIDT, 1852)
- Hydrops martii (WAGLER, 1824)
- Hydrosaurus amboinensis (SCHLOSSER, 1768)
- Hypnale nepa (LAURENTI, 1768)
- Hypsiglena chlorophaea COPE, 1860
- Hypsilurus godeffroyi (PETERS, 1867)
- Hypsiscopus plumbeus (BOIE, 1827)
- Iguana delicatissima LAURENTI, 1768
- Iguana iguana (LINNAEUS, 1758)
- Imantodes chocoensis TORRES-CARVAJAL, YÁNEZ-MUÑOZ, QUIROLA, SMITH & ALMENDÁRIZ, 2012
- Imantodes lentiferus (COPE, 1894)
- Indotestudo elongata (BLYTH, 1854)
- Indotestudo forstenii (SCHLEGEL & MÜLLER, 1844)
- Indotestudo travancorica (BOULENGER, 1907)
- Indotyphlops braminus (DAUDIN, 1803)
- Indotyphlops jerdoni (BOULENGER, 1890)
- Iphisa brunopereira MELLO, RECODER, FOUQUET, RODRIGUES & NUNES, 2023
- Iranolacerta brandtii (DE FILIPPI, 1863)
- Japalura andersoniana ANNANDALE, 1905
- Japalura austeniana (ANNANDALE, 1908)
- Japalura kumaonensis (ANNANDALE, 1907)
- Japalura sagittifera SMITH, 1940
- Japalura tricarinata (BLYTH, 1853)
- Japalura variegata GRAY, 1853
- Karnsophis siantaris MURPHY & VORIS, 2013
- Kataphraktosaurus ungerhamiltoni ROJAS-RUNJAIC, BARRIO-AMORÓS, SEÑARIS, RIVA & CASTROVIEJO-FISHER, 2021
- Kinixys belliana GRAY, 1831
- Kinosternon acutum GRAY, 1831
- Lacerta agilis LINNAEUS, 1758
- Lacerta bilineata DAUDIN, 1802
- Lacerta citrovittata WERNER, 1938
- Lacerta diplochondrodes WETTSTEIN, 1952
- Lacerta pamphylica SCHMIDTLER, 1975
- Lacerta schreiberi BEDRIAGA, 1878
- Lacerta trilineata BEDRIAGA, 1886
- Lacerta viridis (LAURENTI, 1768)
- Lachesis melanocephala SOLÓRZANO & CERDAS, 1986
- Lachesis muta (LINNAEUS, 1766)
- Lachesis rhombeata (WIED, 1824)
- Lachesis stenophrys COPE, 1875
- Lamprolepis smaragdina (LESSON, 1829)
- Lampropeltis californiae (BLAINVILLE, 1835)
- Lampropeltis floridana (BLANCHARD, 1919)
- Lampropeltis gentilis (BAIRD & GIRARD, 1853)
- Lampropeltis getula (LINNAEUS, 1766)
- Lampropeltis knoblochi TAYLOR, 1940
- Lampropeltis polyzona COPE, 1860
- Lampropeltis pyromelana (COPE, 1866)
- Lampropeltis triangulum (LACÉPÈDE, 1789)
- Langaha madagascariensis BONATERRE, 1790
- Lankascincus deignani (TAYLOR, 1950)
- Lankascincus fallax (PETERS, 1860)
- Lankascincus gansi GREER, 1991
- Lankascincus sripadensis MENDIS WICKRAMASINGHE, RODRIGO, DAYAWANSA & JAYANTHA, 2007
- Lankascincus taylori GREER, 1991
- Laticauda colubrina (SCHNEIDER, 1799)
- Laticauda laticaudata (LINNAEUS, 1758)
- Laticauda semifasciata (REINWARDT, 1837)
- Laudakia cypriaca (DAAN, 1967)
- Laudakia sacra (SMITH, 1935)
- Laudakia stellio (LINNAEUS, 1758)
- Laudakia tuberculata (GRAY, 1827)
- Laudakia vulgaris (SONNINI & LATREILLE, 1802)
- Lepidoblepharis emberawoundule BATISTA, PONCE, VESELY, MEBERT, HERTZ, KÖHLER, CARRIZO & LOTZKAT, 2015
- Lepidoblepharis miyatai LAMAR, 1985
- Lepidoblepharis montecanoensis MARKEZICH & TAPHORN, 1994
- Lepidochelys olivacea (ESCHSCHOLTZ, 1829)
- Lepidodactylus flaviocularis BROWN, MCCOY & RODDA, 1992
- Lepidodactylus lugubris (DUMÉRIL & BIBRON, 1836)
- Lepidodactylus mutahi BROWN & PARKER, 1977
- Lepidophyma inagoi PALACIOS-AGUILAR, SANTOS-BIBIANO & FLORES-VILLELA, 2018
- Leptodeira annulata (LINNAEUS, 1758)
- Leptodeira approximans (GÜNTHER, 1872)
- Leptodeira larcorum SCHMIDT & WALKER, 1943
- Leptodeira maculata (HALLOWELL, 1861)
- Leptodeira ornata (BOCOURT, 1884)
- Leptodeira pulchriceps DUELLMAN, 1958
- Leptodeira septentrionalis (KENNICOTT, 1859)
- Leptomicrurus collaris (SCHLEGEL, 1837)
- Leptomicrurus renjifoi LAMAR, 2003
- Leptomicrurus scutiventris (COPE, 1870)
- Leptophis ahaetulla (LINNAEUS, 1758)
- Leptophis bocourti BOULENGER, 1898
- Leptophis bolivianus OLIVER, 1942
- Leptophis liocercus (WIED, 1824)
- Leptophis marginatus (COPE, 1862)
- Leptophis mystacinus ALBUQUERQUE, MARTINS, CARVALHO, SHEPARD & SANTANA, 2025
- Leptophis nigromarginatus (GÜNTHER, 1866)
- Leptophis occidentalis (GÜNTHER, 1859)
- Leptophis praestans (COPE, 1868)
- Leptophis urostictus (PETERS, 1873)
- Leptotyphlops incognitus (BROADLEY & WATSON, 1976)
- Leptotyphlops sylvicolus BROADLEY & WALLACH, 1997
- Lerista connivens STORR, 1971
- Levitonius mirus WEINELL, PALUH, SILER & BROWN, 2020
- Liasis mackloti DUMÉRIL & BIBRON, 1844
- Lielaphis slashi HUANG, AUSTIN, BERNSTEIN, IOVA, ROBERTS, FREDERICK & RUANE, 2026
- Lioheterophis iheringi AMARAL, 1935
- Liolaemus abaucan ETHERIDGE, 1993
- Liolaemus abdalai QUINTEROS, 2012
- Liolaemus aluen MILLÁN & ABDALA, 2024
- Liolaemus burmeisteri AVILA, PEREZ, MEDINA, SITES & MORANDO, 2012
- Liolaemus casamiquelai AVILA, PEREZ, MORANDO & SITES, 2010
- Liolaemus chaltin LOBO & ESPINOZA, 2004
- Liolaemus chehuachekenk AVILA, MORANDO & SITES, 2008
- Liolaemus crepuscularis ABDALA & DÍAZ-GOMEZ, 2006
- Liolaemus cuyumhue AVILA, MORANDO, PEREZ & SITES, 2009
- Liolaemus espinozai ABDALA, 2005
- Liolaemus foxi NÚÑEZ, NAVARRO & VELOSO, 2000
- Liolaemus hauthali ABDALA, DÍAZ-GÓMEZ & LANGSTROTH, 2021
- Liolaemus heliodermis ESPINOZA, LOBO & CRUZ, 2000
- Liolaemus inacayali ABDALA, 2003
- Liolaemus josei ABDALA, 2005
- Liolaemus koslowskyi ETHERIDGE, 1993
- Liolaemus laurenti ETHERIDGE, 1992
- Liolaemus loboi ABDALA, 2003
- Liolaemus mapuche ABDALA, 2002
- Liolaemus martorii ABDALA, 2003
- Liolaemus millcayac ABDALA & JUÁREZ-HEREDIA, 2013
- Liolaemus morenoi ETHERIDGE & CHRISTIE, 2003
- Liolaemus olongasta ETHERIDGE, 1993
- Liolaemus ornatus KOSLOWSKY, 1898
- Liolaemus pacha JUÁREZ-HEREDIA, ROBLES & HALLOY, 2013
- Liolaemus pagaburoi LOBO & ESPINOZA, 1999
- Liolaemus puelche AVILA, MORANDO, PEREZ & SITES, 2007
- Liolaemus quilmes ETHERIDGE, 1993
- Liolaemus ramirezae LOBO & ESPINOZA, 1999
- Liolaemus scrocchii QUINTEROS, ABDALA & LOBO, 2008
- Liolaemus senguer ABDALA, 2005
- Liolaemus tehuelche ABDALA, 2003
- Liolaemus tristis SCOLARO & CEI, 1997
- Liolaemus umbrifer ESPINOZA & LOBO, 2003
- Liopholis multiscutata (MITCHELL & BEHRNDT, 1949)
- Liopholis mutawintji PARKIN, SWAN, MARSHALL, BATES, MCKELLAR, THOMPSON, THOMPSON, PARKIN, HAINES, FARQUHAR, LLOYD, WHILE, FOSTER, ELDRIDGE, TREMBATH, SHEA, DONNELLAN, CHAPPLE & ROWLEY, 2026
- Liotyphlops albirostris (PETERS, 1858)
- Liotyphlops anops (COPE, 1899)
- Liotyphlops petersii (BOULENGER, 1889)
- Liotyphlops ternetzii (BOULENGER, 1896)
- Lipinia macrotympanum (STOLICZKA, 1873)
- Lipinia quadrivittata (PETERS, 1867)
- Lipinia sekayuensis GRISMER, ISMAIL, AWANG, RIZAL & AHMAD, 2014
- Lipinia vittigera (BOULENGER, 1894)
- Lissemys ceylonensis (GRAY, 1856)
- Lissemys punctata (BONNATERRE, 1789)
- Lissemys scutata (PETERS, 1868)
- Lissolepis luctuosa (PETERS, 1866)
- Lophocalotes achlios HARVEY, SCRIVANI, SHANEY, HAMIDY, KURNIAWAN & SMITH, 2018
- Loxopholis ferreirai (RODRIGUES & AVILA-PIRES, 2005)
- Lycodon aulicus (LINNAEUS, 1758)
- Lycodon bicolor (NIKOLSKY, 1903)
- Lycodon fasciolatus (SHAW, 1802)
- Lycodon jara (SHAW, 1802)
- Lycodon striatus (SHAW, 1802)
- Lycodon zawi SLOWINSKI, PAWAR, WIN, THIN, GYI, OO & TUN, 2001
- Lygophis dilepis COPE, 1862
- Lygophis lineatus (LINNAEUS, 1758)
- Lygophis paucidens HOGE, 1953
- Lyriocephalus scutatus (LINNAEUS, 1758)
- Mabuya altamazonica MIRALLES, BARRIO-AMOROS, RIVAS, CHAPARRO-AUZA, 2006
- Macrochelys temminckii (TROOST, 1835)
- Macrovipera lebetinus (LINNAEUS, 1758)
- Malayopython reticulatus (SCHNEIDER, 1801)
- Malpolon insignitus (GEOFFROY SAINT-HILAIRE, 1827)
- Malpolon monspessulanus (HERMANN, 1804)
- Manouria emys (SCHLEGEL & MÜLLER, 1844)
- Marisora lineola MCCRANIE, MATTHEWS & HEDGES, 2020
- Marisora roatanae HEDGES & CONN, 2012
- Masticophis flagellum (SHAW, 1802)
- Masticophis lineatus BOCOURT, 1890
- Masticophis mentovarius (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Masticophis piceus (COPE, 1892)
- Masticophis taeniatus (HALLOWELL, 1852)
- Mastigodryas boddaerti (SENTZEN, 1796)
- Mastigodryas danieli AMARAL, 1935
- Mastigodryas heathii (COPE, 1875)
- Mastigodryas pleii (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Mastigodryas reticulatus (PETERS, 1863)
- Mauremys japonica (TEMMINCK & SCHLEGEL, 1835)
- Mauremys leprosa (SCHWEIGGER, 1812)
- Mediodactylus bartoni (STEPÁNEK, 1934)
- Mediodactylus danilewskii (STRAUCH, 1887)
- Mediodactylus heterocercus (BLANFORD, 1874)
- Mediodactylus kotschyi (STEINDACHNER, 1870)
- Mediodactylus oertzeni (BOETTGER, 1888)
- Mediodactylus orientalis (STEPÁNEK, 1937)
- Melanochelys tricarinata (BLYTH, 1856)
- Melanochelys trijuga (SCHWEIGGER, 1812)
- Mesalina adramitana (BOULENGER, 1917)
- Mesalina austroarabica SINDACO, SIMÓ-RIUDALBAS, SACCHI & CARRANZA, 2018
- Mesalina bahaeldini SEGOLI, COHEN & WERNER, 2002
- Mesalina balfouri (BLANFORD, 1881)
- Mesalina brevirostris BLANFORD, 1874
- Mesalina cryptica ŠMÍD, VELENSKÁ, POLA, TAMAR, BUSAIS, SHOBRAK, ALMUTAIRI, SALIM, ALSUBAIE, ALGETHAMI, ALGETHAMI, ALANAZI, ALSHAMMARI, EGAN, RAMALHO, OLSON, SMITHSON, CHIRIO, BURGER, HUYSSTEEN, PETFORD & CARRANZA, 2025
- Mesalina guttulata (LICHTENSTEIN, 1823)
- Mesalina kuri JOGER & MAYER, 2002
- Mesalina martini (BOULENGER, 1897)
- Mesalina olivieri (AUDOUIN, 1829)
- Mesalina pasteuri (BONS, 1960)
- Mesalina rubropunctata (LICHTENSTEIN, 1823)
- Mesalina simoni (BOETTGER, 1881)
- Mesalina watsonana (STOLICZKA, 1872)
- Mesoclemmys dahli (ZANGERL & MEDEM, 1958)
- Mesoclemmys nasuta (SCHWEIGGER, 1812)
- Mesoclemmys raniceps (GRAY, 1856)
- Mesoclemmys wermuthi (MERTENS, 1969)
- Mesomycterus punctatus (RAXWORTHY & NUSSBAUM, 1993)
- Mesotes rutilus (PRADO, 1942)
- Mesotes strigatus (GÜNTHER, 1858)
- Metlapilcoatlus indomitus (SMITH & FERRARI-CASTRO, 2008)
- Metlapilcoatlus mexicanus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Metlapilcoatlus nummifer (RÜPPELL, 1845)
- Metlapilcoatlus occiduus (HOGE, 1966)
- Microlophus yanezi (ORTIZ-ZAPATA, 1980)
- Micrurus alleni SCHMIDT, 1936
- Micrurus apiatus (JAN, 1858)
- Micrurus baliocoryphus (COPE, 1860)
- Micrurus bocourti (JAN, 1872)
- Micrurus boicora BERNARDE, TURCI, ABEGG & FRANCO, 2018
- Micrurus circinalis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus corallinus (MERREM, 1820)
- Micrurus diana ROZE, 1983
- Micrurus diastema (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus distans KENNICOTT, 1860
- Micrurus dumerilii (JAN, 1858)
- Micrurus ephippifer (COPE, 1886)
- Micrurus hemprichii (JAN, 1858)
- Micrurus langsdorffi (WAGLER, 1824)
- Micrurus michoacanensis DUGES, 1891
- Micrurus mipartitus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Micrurus multiscutatus RENDAHL & VESTERGREN, 1940
- Micrurus nattereri SCHMIDT, 1952
- Micrurus oliveri ROZE, 1967
- Micrurus ornatissimus (JAN, 1858)
- Micrurus paraensis CUNHA & NASCIMENTO, 1973
- Micrurus proximans SMITH & CHRAPLIWY, 1958
- Micrurus pyrrhocryptus (COPE, 1862)
- Micrurus serranus HARVEY, APARICIO & GONZALEZ, 2003
- Micrurus surinamensis (CUVIER, 1816)
- Micrurus tricolor HOGE, 1956
- Mochlus fernandi (BURTON, 1836)
- Mokopirirakau cryptozoicus (JEWELL & LESCHEN, 2004)
- Mokopirirakau galaxias KNOX, HITCHMOUGH, NIELSEN, JEWELL & BELL, 2021
- Mokopirirakau kahutarae (WHITAKER, 1985)
- Moloch horridus GRAY, 1841
- Monopeltis anchietae (BOCAGE, 1873)
- Montivipera raddei (BOETTGER, 1890)
- Montivipera wagneri (NILSON & ANDRÉN, 1984)
- Montivipera xanthina (GRAY, 1849)
- Morelia azurea (MEYER, 1874)
- Morelia imbricata (SMITH, 1981)
- Morelia spilota (LACÉPÈDE, 1804)
- Morelia viridis (SCHLEGEL, 1872)
- Morenia ocellata (DUMÉRIL & BIBRON, 1835)
- Morenia petersi (ANDERSON, 1879)
- Muhtarophis barani (OLGUN, AVCI, ILGAZ, ÜZÜM & YILMAZ, 2007)
- Myriopholis macrorhyncha (JAN, 1860)
- Myriopholis narirostris (PETERS, 1867)
- Myuchelys purvisi (WELLS & WELLINGTON, 1985)
- Naja atra CANTOR, 1842
- Naja kaouthia LESSON, 1831
- Naja naja (LINNAEUS, 1758)
- Naja philippinensis TAYLOR, 1922
- Naja samarensis PETERS, 1861
- Naja siamensis LAURENTI, 1768
- Naja sputatrix BOIE, 1827
- Naja sumatrana MÜLLER, 1887
- Nannoscincus manautei SADLIER, BAUER, WHITAKER & SMITH, 2004
- Natriciteres variegata (PETERS, 1861)
- Natrix helvetica (LACÉPÈDE, 1789)
- Natrix maura (LINNAEUS, 1758)
- Natrix natrix (LINNAEUS, 1758)
- Natrix tessellata (LAURENTI, 1768)
- Nephrurus laevissimus MERTENS, 1958
- Nephrurus levis DE VIS, 1886
- Nessia bipes SMITH, 1935
- Nessia monodactyla (GRAY, 1839)
- Neusticurus medemi DIXON & LAMAR, 1981
- Neusticurus rudis BOULENGER, 1900
- Nilssonia formosa (GRAY, 1869)
- Nilssonia gangetica (CUVIER, 1825)
- Nilssonia hurum (GRAY, 1831)
- Nilssonia leithii (GRAY, 1872)
- Nilssonia nigricans (ANDERSON, 1875)
- Ninia atrata (HALLOWELL, 1845)
- Ninia diademata BAIRD & GIRARD, 1853
- Ninia franciscoi ANGARITA-SIERRA, 2014
- Ninia sebae (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Notechis scutatus (PETERS, 1861)
- Oligodon albocinctus (CANTOR, 1839)
- Oligodon arnensis (SHAW, 1802)
- Oligodon chinensis (GÜNTHER, 1888)
- Oligodon cinereus (GÜNTHER, 1864)
- Oligodon cyclurus (CANTOR, 1839)
- Oligodon dorsalis (GRAY, 1834)
- Oligodon erythrogaster BOULENGER, 1907
- Oligodon juglandifer (WALL, 1909)
- Oligodon saiyok SUMONTHA, KUNYA, DANGSRI & PAUWELS, 2017
- Oligodon taeniolatus (JERDON, 1853)
- Oligodon venustus (JERDON, 1853)
- Oligodon waandersi (BLEEKER, 1860)
- Oligodon wagneri DAVID & VOGEL, 2012
- Opheodrys vernalis (HARLAN, 1827)
- Ophiomorus kardesi KORNILIOS, KUMLUTAS, LYMBERAKIS & ILGAZ, 2018
- Ophiomorus punctatissimus (BIBRON & BORY DE ST. VINCENT, 1833)
- Ophiomorus raithmai ANDERSON & LEVITON, 1966
- Ophiophagus hannah (CANTOR, 1836)
- Ophisops elegans MÉNÉTRIES, 1832
- Ophisops jerdonii BLYTH, 1853
- Ophisops leschenaultii (MILNE-EDWARDS, 1829)
- Ophisops venustus PATEL, VYAS, THACKERAY, PAL & MIRZA, 2024
- Opisthotropis rugosa (LIDTH DE JEUDE, 1890)
- Oreocryptophis porphyraceus (CANTOR, 1839)
- Otocryptis wiegmanni WAGLER, 1830
- Ovophis makazayazaya (TAKAHASHI, 1922)
- Ovophis monticola (GÜNTHER, 1864)
- Ovophis tonkinensis (BOURRET, 1934)
- Oxybelis aeneus (WAGLER, 1824)
- Oxybelis koehleri JADIN, BLAIR, ORLOFSKE, JOWERS, RIVAS, VITT, RAY, SMITH & MURPHY, 2020
- Oxybelis rutherfordi JADIN, BLAIR, ORLOFSKE, JOWERS, RIVAS, VITT, RAY, SMITH & MURPHY, 2020
- Oxyrhopus guibei HOGE & ROMANO, 1977
- Oxyrhopus melanogenys (TSCHUDI, 1845)
- Oxyrhopus trigeminus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Oxyrhopus vanidicus LYNCH, 2009
- Oxyuranus scutellatus (PETERS, 1867)
- Pachydactylus angolensis LOVERIDGE, 1944
- Pachydactylus parascutatus BAUER, LAMB & BRANCH, 2002
- Pachydactylus robertsi FITZSIMONS, 1938
- Pachydactylus scutatus HEWITT, 1927
- Palea steindachneri (SIEBENROCK, 1906)
- Palusophis bifossatus (RADDI, 1820)
- Panaspis maculicollis JACOBSEN & BROADLEY, 2000
- Pangshura smithii (GRAY, 1863)
- Pangshura sylhetensis JERDON, 1870
- Pangshura tecta (GRAY, 1831)
- Pangshura tentoria (GRAY, 1834)
- Pantherophis emoryi (BAIRD & GIRARD, 1853)
- Pantherophis guttatus (LINNAEUS, 1766)
- Papuascincus borealis SLAVENKO, RICHARDS, DONNELLAN, ALLISON & OLIVER, 2024
- Paralaudakia badakhshana (ANDERSON & LEVITON, 1969)
- Paralaudakia bochariensis (NIKOLSKY, 1897)
- Paralaudakia caucasia (EICHWALD, 1831)
- Paralaudakia himalayana (STEINDACHNER, 1867)
- Paralaudakia stoliczkana (BLANFORD, 1875)
- Pareas macularius THEOBALD, 1868
- Pareas margaritophorus (JAN, 1866)
- Pareas monticola (CANTOR, 1839)
- Paroplocephalus atriceps (STORR, 1980)
- Parvilacerta parva (BOULENGER, 1887)
- Pelochelys bibroni (OWEN, 1853)
- Pelochelys cantorii GRAY, 1864
- Pelochelys signifera WEBB, 2002
- Pelodiscus axenaria (ZHOU, ZHANG & FANG, 1991)
- Pelodiscus maackii (BRANDT, 1858)
- Pelodiscus parviformis TANG, 1997
- Pelodiscus sinensis (WIEGMANN, 1835)
- Pelomedusa galeata (SCHOEPFF, 1792)
- Pelturagonia anolophium HARVEY, LARSON, JACOBS, SHANEY, STREICHER, HAMIDY, KURNIAWAN & SMITH, 2019
- Pelusios sinuatus (SMITH, 1838)
- Pelusios upembae BROADLEY, 1981
- Petrosaurus mearnsi (STEJNEGER, 1894)
- Petrosaurus repens (VAN DENBURGH, 1895)
- Petrosaurus slevini (VAN DENBURGH, 1922)
- Petrosaurus thalassinus (COPE, 1863)
- Phalotris bilineatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phalotris concolor FERRAREZZI, 1993
- Phalotris cuyanus (CEI, 1984)
- Phalotris lativittatus FERRAREZZI, 1993
- Phalotris lemniscatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phalotris mertensi (HOGE, 1955)
- Phalotris multipunctatus PUORTO & FERRAREZZI, 1993
- Phalotris nasutus (GOMES, 1915)
- Phalotris nigrilatus FERRAREZZI, 1993
- Phalotris punctatus (DE LEMA, 1979)
- Phalotris reticulatus (PETERS, 1860)
- Phalotris spegazzinii (BOULENGER, 1913)
- Phalotris suspectus (AMARAL, 1924)
- Phalotris tricolor (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Phelsuma andamanensis BLYTH, 1861
- Phelsuma breviceps BOETTGER, 1894
- Phelsuma mutabilis (GRANDIDIER, 1869)
- Philodryas chamissonis (WIEGMANN, 1835)
- Phimophis guianensis (TROSCHEL, 1848)
- Phoenicolacerta laevis (GRAY, 1838)
- Pholidoscelis plei (DUMÉRIL & BIBRON, 1839)
- Phoxophrys tuberculata HUBRECHT, 1881
- Phrynocephalus guttatus (GMELIN, 1789)
- Phrynocephalus helioscopus (PALLAS, 1771)
- Phrynocephalus theobaldi BLYTH, 1863
- Phrynonax poecilonotus (GÜNTHER, 1858)
- Phrynonax sexcarinatus (WAGLER, 1824)
- Phrynosoma cornutum (HARLAN, 1825)
- Phrynosoma douglasii (BELL, 1829)
- Phrynosoma hernandesi GIRARD, 1858
- Phrynosoma modestum GIRARD, 1852
- Phrynosoma ornatissimum GIRARD, 1858
- Phrynosoma platyrhinos GIRARD, 1852
- Phyllodactylus benedettii RAMÍREZ-REYES & FLORES-VILLELA, 2018
- Phyllodactylus delsolari VENEGAS, TOWNSEND, KOCH & BÖHME, 2008
- Phyllodactylus dixoni RIVERO -BLANCO & LANCINI, 1968
- Phyllodactylus interandinus DIXON & HUEY, 1970
- Phyllodactylus johnwrighti DIXON & HUEY, 1970
- Phyllodactylus magister NOBLE, 1924
- Phyllodactylus pachamama KOCH, FLECKS, VENEGAS, BIALKE, VALVERDE & RÖDDER, 2016
- Phyllodactylus reissii PETERS, 1862
- Phyllodactylus thompsoni VENEGAS, TOWNSEND, KOCH & BÖHME, 2008
- Phyllopezus maranjonensis KOCH, VENEGAS & BÖHME, 2006
- Phyllorhynchus decurtatus (COPE, 1868)
- Phymaturus delheyi AVILA, PEREZ, PEREZ & MORANDO, 2011
- Phymaturus roigorum LOBO & ABDALA, 2007
- Phymaturus spurcus BARBOUR, 1921
- Pituophis catenifer (BLAINVILLE, 1835)
- Pituophis melanoleucus (DAUDIN, 1803)
- Placosoma cordylinum TSCHUDI, 1847
- Plagiopholis acuta XU, MA & CAI, 2025
- Platyceps brevis (BOULENGER, 1895)
- Platyceps collaris (MÜLLER, 1878)
- Platyceps najadum (EICHWALD, 1831)
- Platyceps smithii (BOULENGER, 1895)
- Platysternon megacephalum GRAY, 1831
- Plesiodipsas perijanensis (ALEMÁN, 1953)
- Plestiodon chinensis (GRAY, 1839)
- Plestiodon finitimus OKAMOTO & HIKIDA, 2012
- Plestiodon japonicus (PETERS, 1864)
- Plestiodon kuchinoshimensis KURITA & HIKIDA, 2014
- Plestiodon latiscutatus HALLOWELL, 1861
- Plestiodon leucostictus (HIKIDA, 1988)
- Plestiodon marginatus HALLOWELL, 1861
- Plestiodon multivirgatus HALLOWELL, 1858
- Plestiodon nietoi FERIA-ORTIZ & GARCÍA-VÁZQUEZ, 2012
- Plestiodon obsoletus BAIRD & GIRARD, 1852
- Plestiodon skiltonianus BAIRD & GIRARD, 1852
- Plica pansticta (MYERS & DONNELLY, 2001)
- Plica rayi MURPHY & JOWERS, 2013
- Pliocercus elapoides COPE, 1860
- Podarcis bocagei (LOPEZ-SEOANE, 1885)
- Podarcis carbonelli PÉREZ-MELLADO, 1981
- Podarcis erhardii (BEDRIAGA, 1882)
- Podarcis hispanicus (STEINDACHNER, 1870)
- Podarcis liolepis (BOULENGER, 1905)
- Podarcis milensis (BEDRIAGA, 1882)
- Podarcis siculus (RAFINESQUE-SCHMALTZ, 1810)
- Podocnemis erythrocephala (SPIX, 1824)
- Podocnemis expansa (SCHWEIGGER, 1812)
- Podocnemis lewyana DUMÉRIL, 1852
- Podocnemis sextuberculata CORNALIA, 1849
- Podocnemis unifilis TROSCHEL, 1848
- Podocnemis vogli MÜLLER, 1935
- Pogona barbata (CUVIER, 1829)
- Pogona vitticeps (AHL, 1926)
- Polemon ater PORTILLO, BRANCH, TILBURY, NAGY, HUGHES, KUSAMBA, MUNINGA, ARISTOTE, BEHANGANA & GREENBAUM, 2019
- Polychrus jacquelinae KOCH, VENEGAS, GARCIA-BRAVO & BÖHME, 2011
- Polychrus peruvianus (NOBLE, 1924)
- Porthidium hespere (CAMPBELL, 1976)
- Porthidium nasutum (BOCOURT, 1868)
- Porthidium porrasi LAMAR, 2003
- Praeteropus auxilliger HUTCHINSON, COUPER, AMEY & WILMER, 2021
- Prasinohaema parkeri (SMITH, 1937)
- Pristurus minimus ARNOLD, 1977
- Proctoporus bolivianus WERNER, 1910
- Proctoporus optimus MAMANI, CRUZ, MALLQUI & CATENAZZI, 2022
- Proctoporus sucullucu DOAN & CASTOE, 2003
- Proctoporus unsaacae DOAN & CASTOE, 2003
- Protobothrops flavoviridis (HALLOWELL, 1861)
- Protobothrops himalayanus PAN, CHETTRI, YANG, JIANG, WANG, ZHANG & VOGEL, 2013
- Protobothrops jerdonii (GÜNTHER, 1875)
- Protobothrops kaulbacki (SMITH, 1940)
- Protobothrops mucrosquamatus (CANTOR, 1839)
- Psammodynastes pulverulentus (BOIE, 1827)
- Psammophilus blanfordanus (STOLICZKA, 1871)
- Psammophilus dorsalis (GRAY, 1831)
- Psammophis punctulatus DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Pseudablabes arnaldoi (AMARAL, 1932)
- Pseudablabes pseudomamba DI PIETRO, SÁNCHEZ, POLJAK & ALCALDE, 2026
- Pseudechis porphyriacus (SHAW, 1794)
- Pseudemys peninsularis CARR, 1938
- Pseudoboa coronata SCHNEIDER, 1801
- Pseudocalotes cybelidermus HARVEY, HAMIDY, KURNIAWAN, SHANEY & SMITH, 2014
- Pseudocalotes guttalineatus HARVEY, HAMIDY, KURNIAWAN, SHANEY & SMITH, 2014
- Pseudocalotes rhammanotus HARVEY, HAMIDY, KURNIAWAN, SHANEY & SMITH, 2014
- Pseudoeryx plicatilis (LINNAEUS, 1758)
- Pseudogonatodes barbouri (NOBLE, 1921)
- Pseudoindotyphlops porrectus (STOLICZKA, 1871)
- Pseudonaja textilis (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Pseudopus apodus (PALLAS, 1775)
- Pseudorabdion sirambense DORIA & PETRI, 2010
- Pseudotrapelus aqabensis MELNIKOV, NAZAROV, ANANJEVA & DISI, 2012
- Pseudotrapelus chlodnickii MELNIKOV, ŚMIEŁOWSKI, MELNIKOVA, NAZAROV & ANANJEVA, 2015
- Pseudotrapelus dhofarensis MELNIKOV & PIERSON, 2012
- Pseudotrapelus jensvindumi MELNIKOV, ANANJEVA & PAPENFUSS, 2013
- Pseudotrapelus neumanni (TORNIER, 1905)
- Pseudotrapelus sinaitus (HEYDEN, 1827)
- Pseudotrapelus tuwaiqensis TAMAR, UVIZL, SHOBRAK, ALMUTAIRI, BUSAIS, SALIM, ALGETHAMI, ALGETHAMI, ALANAZI, ALSUBAIE, CHIRIO, CARRANZA, ŠMÍD, 2023
- Pseudoxenodon karlschmidti POPE, 1928
- Pseudoxenodon macrops (BLYTH, 1855)
- Pseudoxyrhopus oblectator CADLE, 1999
- Psomophis genimaculatus (BOETTGER, 1885)
- Psomophis obtusus (COPE, 1863)
- Psychosaura macrorhyncha (HOGE, 1946)
- Ptyas korros (SCHLEGEL, 1837)
- Ptyas mucosa (LINNAEUS, 1758)
- Ptyas nigromarginata (BLYTH, 1855)
- Ptyctolaemus gularis (PETERS, 1864)
- Ptyctolaemus kachinensis DEEPAK, 2026
- Ptyctolaemus siangensis BALAN, DAS, BORUAH, TILLACK, LALRONUNGA & DEEPAK, 2025
- Ptyodactylus bischoffsheimi BOUTAN, 1893
- Ptyodactylus guttatus HEYDEN, 1827
- Ptyodactylus homolepis BLANFORD, 1876
- Ptyodactylus puiseuxi BOUTAN, 1893
- Ptyodactylus siphonorhina ANDERSON, 1896
- Python bivittatus KUHL, 1820
- Python molurus (LINNAEUS, 1758)
- Python regius (SHAW, 1802)
- Rafetus euphraticus (DAUDIN, 1801)
- Rafetus swinhoei (GRAY, 1873)
- Ramphotyphlops unguirostris (PETERS, 1867)
- Rena humilis BAIRD & GIRARD, 1853
- Rhabdophis helleri (SCHMIDT, 1925)
- Rhabdophis himalayanus (GÜNTHER, 1864)
- Rhabdophis plumbicolor (CANTOR, 1839)
- Rhabdophis subminiatus (SCHLEGEL, 1837)
- Rhadinaea vermiculaticeps (COPE, 1860)
- Rhadinella anachoreta (SMITH & CAMPBELL, 1994)
- Rhadinella donaji CAMPBELL, 2015
- Rhampholeon nebulauctor BRANCH, BAYLISS & TOLLEY, 2014
- Rhampholeon plumptrei HUGHES, BEHANGANA, TILBURY, MENEGON, KUSAMBA, & GREENBAUM, 2024
- Rheodytes leukops LEGLER, 1980
- Rhinocheilus lecontei BAIRD & GIRARD, 1853
- Rhinoclemmys nasuta (BOULENGER, 1902)
- Rhynchocalamus melanocephalus (JAN, 1862)
- Rhynchocalamus satunini (NIKOLSKY, 1899)
- Riopa albopunctata GRAY, 1846
- Riopa punctata (LINNAEUS, 1758)
- Rodriguesophis iglesiasi (GOMES, 1915)
- Rondonops biscutatus COLLI, HOOGMOED, CANNATELLA, CASSIMIRO, GOMES, GHELLERE, SALES-NUNES, PELLEGRINO, SALERNO, MARQUES DE SOUZA & RODRIGUES, 2015
- Saara hardwickii (GRAY, 1827)
- Salea horsfieldii GRAY, 1845
- Salvadora hexalepis (COPE, 1867)
- Sanzinia madagascariensis (DUMÉRIL & BIBRON, 1844)
- Sauromalus ater DUMÉRIL, 1856
- Scaphiodontophis venustissimus (GÜNTHER, 1894)
- Sceloporus becki VAN DENBURGH, 1905
- Sceloporus bimaculosus PHELAN & BRATTSTROM, 1955
- Sceloporus clarkii BAIRD & GIRARD, 1852
- Sceloporus consobrinus BAIRD & GIRARD, 1854
- Sceloporus cowlesi LOWE & NORRIS, 1956
- Sceloporus cyanogenys COPE, 1885
- Sceloporus cyanostictus AXTELL & AXTELL, 1971
- Sceloporus dixoni BRYSON & GRUMMER, 2021
- Sceloporus graciosus BAIRD & GIRARD, 1852
- Sceloporus hondurensis MCCRANIE, 2018
- Sceloporus huichol FLORES-VILLELA, SMITH, CAMPILLO-GARCÍA, MARTÍNEZ-MÉNDEZ & CAMPBELL, 2022
- Sceloporus jarrovii COPE, 1875
- Sceloporus magister HALLOWELL, 1854
- Sceloporus merriami STEJNEGER, 1904
- Sceloporus nelsoni COCHRAN, 1923
- Sceloporus occidentalis BAIRD & GIRARD, 1852
- Sceloporus schmidti JONES, 1927
- Sceloporus sugillatus SMITH, 1942
- Sceloporus tanneri SMITH & LARSEN, 1975
- Sceloporus tristichus COPE, 1875
- Sceloporus undulatus (BOSC & DAUDIN, 1801)
- Sceloporus vandenburgianus COPE, 1896
- Sceloporus virgatus SMITH, 1938
- Scelotes bidigittatus FITZSIMONS, 1930
- Scelotes vestigifer BROADLEY, 1994
- Scincella montana VALDENEGRO-BRITO, ESAÚ, DE LA VEGA-PÉREZ & GARCÍA-VÁZQUEZ, 2025
- Scincella przewalskii (BEDRIAGA, 1912)
- Scolecoseps litipoensis BROADLEY, 1995
- Senticolis triaspis (COPE, 1866)
- Siagonodon borrichianus (DEGERBØL, 1923)
- Siagonodon cupinensis (BAILEY & CARVALHO, 1946)
- Siagonodon septemstriatus (SCHNEIDER, 1801)
- Sibon anthracops (COPE, 1868)
- Sibynophis collaris (GRAY, 1853)
- Sibynophis sagittarius (CANTOR, 1839)
- Siderolamprus ingridae (WERLER & CAMPBELL, 2004)
- Sigaloseps pisinnus SADLIER, SHEA, WHITAKER, BAUER & WOOD, 2014
- Simalia clastolepis (HARVEY, BARKER, AMMERMAN & CHIPPINDALE, 2000)
- Simalia nauta (HARVEY, BARKER, AMMERMAN & CHIPPINDALE, 2000)
- Simalia tracyae (HARVEY, BARKER, AMMERMAN & CHIPPINDALE, 2000)
- Simophis rhinostoma (SCHLEGEL, 1837)
- Sinomicrurus iwasakii (MAKI, 1935)
- Sinomicrurus macclellandi (REINHARDT, 1844)
- Siphlophis ayauma SHEEHY III, YÁNEZ-MUÑOZ, VALENCIA & SMITH, 2014
- Siphlophis cervinus (LAURENTI, 1768)
- Siphlophis longicaudatus (ANDERSSON, 1901)
- Siphlophis pulcher (RADDI, 1820)
- Siphlophis worontzowi (PRADO, 1940)
- Sitana ponticeriana CUVIER, 1829
- Smithophis bicolor (BLYTH, 1855)
- Sonora michoacanensis (DUGÈS, 1885)
- Sonora mutabilis STICKEL, 1943
- Sonora semiannulata BAIRD & GIRARD, 1853
- Sordellina punctata (PETERS, 1880)
- Spalerosophis atriceps (FISCHER, 1885)
- Sphaerodactylus cinereus WAGLER, 1830
- Sphaerodactylus grandisquamis STEJNEGER, 1904
- Sphaerodactylus inigoi THOMAS & SCHWARTZ, 1966
- Sphaerodactylus macrolepis GÜNTHER, 1859
- Sphaerodactylus sabanus COCHRAN, 1938
- Sphaerodactylus sputator (SPARRMAN, 1784)
- Sphenomorphus courcyanus (ANNANDALE, 1912)
- Sphenomorphus dussumieri (DUMÉRIL & BIBRON, 1839)
- Sphenomorphus indicus (GRAY, 1853)
- Sphenomorphus maculatus (BLYTH, 1853)
- Sphenomorphus minutus (MEYER, 1874)
- Sphenomorphus neuhaussi (VOGT, 1911)
- Sphenomorphus scutatus (PETERS, 1867)
- Sphenomorphus sungaicolus SUMARLI, GRISMER, WOOD, AHMAD, RIZAL, ISMAIL, IZAM, AHMAD & LINKEM, 2016
- Sphenomorphus tropidonotus (BOULENGER, 1897)
- Sphenomorphus variegatus (PETERS, 1867)
- Spilotes pullatus (LINNAEUS, 1758)
- Spilotes sulphureus (WAGLER, 1824)
- Stegonotus muelleri DUMÉRIL, BIBRON & DUMÉRIL, 1854
- Stenocercus cadlei TORRES-CARVAJAL & MAFLA-ENDARA, 2013
- Stenocercus eunetopsis CADLE, 1991
- Stenocercus huancabambae CADLE, 1991
- Sternotherus odoratus (LATREILLE, 1802)
- Subdoluseps bowringii (GÜNTHER, 1864)
- Suta dwyeri (WORRELL, 1956)
- Suta fasciata (ROSÉN, 1905)
- Suta flagellum (MCCOY, 1878)
- Suta gaikhorstorum MARYAN, BRENNAN, HUTCHINSON & GEIDANS, 2020
- Suta gouldii (GRAY, 1841)
- Suta monachus (STORR, 1964)
- Suta nigriceps (GÜNTHER, 1863)
- Suta ordensis (STORR, 1984)
- Suta punctata (BOULENGER, 1896)
- Suta spectabilis KREFFT, 1869
- Suta suta (PETERS, 1863)
- Tachymenis trigonatus (LEYBOLD, 1873)
- Taeniophallus brevirostris (PETERS, 1863)
- Takydromus khasiensis BOULENGER, 1917
- Takydromus sexlineatus DAUDIN, 1802
- Takydromus sikkimensis GÜNTHER, 1888
- Takydromus tachydromoides (SCHLEGEL, 1838)
- Tantilla alticola (BOULENGER, 1903)
- Tantilla capistrata COPE, 1875
- Tantilla hendersoni STAFFORD, 2004
- Tantilla hobartsmithi TAYLOR, 1937
- Tantilla impensa CAMPBELL, 1998
- Tantilla melanocephala (LINNAEUS, 1758)
- Tantilla nigra (BOULENGER, 1914)
- Tantilla nigriceps KENNICOTT, 1860
- Tantilla sertula WILSON & CAMPBELL, 2000
- Tantilla stenigrammi MCCRANIE & SMITH, 2017
- Tantilla tecta CAMPBELL & SMITH, 1997
- Tantilla tjiasmantoi KOCH & VENEGAS, 2016
- Tantilla vulcani CAMPBELL, 1998
- Tarentola caboverdiana SCHLEICH, 1984
- Tarentola mauritanica (LINNAEUS, 1758)
- Tarentola substituta JOGER, 1984
- Telescopus dhara (FORSKÅL, 1775)
- Telescopus fallax FLEISCHMANN, 1831
- Telescopus nigriceps (AHL, 1924)
- Telescopus obtusus (REUSS, 1834)
- Telescopus somalicus (PARKER, 1949)
- Tenuidactylus caspius (EICHWALD, 1831)
- Terrapene carolina (LINNAEUS, 1758)
- Terrapene ornata (AGASSIZ, 1857)
- Testudo graeca LINNAEUS, 1758
- Testudo horsfieldii GRAY, 1844
- Testudo marginata SCHOEPFF, 1792
- Thamnophis atratus KENNICOTT, 1860
- Thamnophis bogerti ROSSMAN & BURBRINK, 2005
- Thamnophis brachystoma (COPE, 1892)
- Thamnophis butleri (COPE, 1889)
- Thamnophis chrysocephalus (COPE, 1885)
- Thamnophis couchii (KENNICOTT, 1859)
- Thamnophis cyrtopsis (KENNICOTT, 1860)
- Thamnophis elegans (BAIRD & GIRARD, 1853)
- Thamnophis eques (REUSS, 1834)
- Thamnophis foxi ROSSMAN & BLANEY, 1968
- Thamnophis fulvus (BOCOURT, 1893)
- Thamnophis godmani (GÜNTHER, 1894)
- Thamnophis hammondii (KENNICOTT, 1860)
- Thamnophis marcianus (BAIRD & GIRARD, 1853)
- Thamnophis melanogaster (PETERS, 1864)
- Thamnophis mendax WALKER, 1955
- 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 sirtalis (LINNAEUS, 1758)
- Thamnophis sumichrasti (COPE, 1866)
- Thecadactylus rapicauda (HOUTTUYN, 1782)
- Thermophis baileyi (WALL, 1907)
- Timon princeps (BLANFORD, 1874)
- Toxicocalamus goodenoughensis ROBERTS & AUSTIN, 2020
- Trachemys callirostris (GRAY, 1855)
- Trachemys scripta (THUNBERG, 1792)
- Trachemys venusta (GRAY, 1856)
- Trachemys yaquia (LEGLER & WEBB, 1970)
- Trachischium fuscum (BLYTH, 1855)
- Trachischium guentheri BOULENGER, 1890
- Trachischium laeve PERACCA, 1904
- Trachischium monticola (CANTOR, 1839)
- Trachischium reticulata (BLYTH, 1855)
- Trachischium tenuiceps (BLYTH, 1855)
- Trachylepis affinis (GRAY, 1839)
- Trachylepis gonwouoi ALLEN, TAPONDJOU, WELTON & BAUER, 2017
- Trachylepis paucisquamis (HOOGMOED, 1978)
- Trachylepis quinquetaeniata (LICHTENSTEIN, 1823)
- Trachylepis tessellata (ANDERSON, 1895)
- Trapelus agilis (OLIVIER, 1807)
- Trapelus agnetae (WERNER, 1929)
- Trapelus boehmei WAGNER, MELVILLE, WILMS & SCHMITZ, 2011
- Trapelus flavimaculatus RÜPPELL, 1835
- Trapelus megalonyx GÜNTHER, 1864
- Trapelus mutabilis (MERREM, 1820)
- Trapelus persicus (BLANFORD, 1881)
- Trapelus ruderatus (OLIVIER, 1804)
- Trapelus savignii (DUMÉRIL & BIBRON, 1837)
- Trapelus schmitzi WAGNER & BÖHME, 2006
- Trapelus tournevillei (LATASTE, 1880)
- Trilepida affinis (BOULENGER, 1884)
- Trilepida brasiliensis (LAURENT, 1949)
- Trilepida dimidiata (JAN, 1861)
- Trilepida koppesi (AMARAL, 1955)
- Trilepida salgueiroi (AMARAL, 1955)
- Trimeresurus albolabris GRAY, 1842
- Trimeresurus davidi CHANDRAMOULI, CAMPBELL & VOGEL, 2020
- Trimeresurus erythrurus (CANTOR, 1839)
- Trimeresurus gunaleni VOGEL, DAVID & SIDIK, 2014
- Trimeresurus hageni (LIDTH DE JEUDE, 1886)
- Trimeresurus labialis FITZINGER, 1867
- Trimeresurus macrops KRAMER, 1977
- Trimeresurus medoensis ZHAO, 1977
- Trimeresurus mutabilis STOLICZKA, 1870
- Trimeresurus popeiorum SMITH, 1937
- Trimeresurus sabahi REGENASS & KRAMER, 1981
- Trimeresurus salazar MIRZA, BHOSALE, PHANSALKAR, SAWANT, GOWANDE & PATEL, 2020
- Trimeresurus septentrionalis KRAMER, 1977
- Trimeresurus stejnegeri SCHMIDT, 1925
- Trimeresurus tibetanus HUANG, 1982
- Trimeresurus yunnanensis SCHMIDT, 1925
- Trimorphodon biscutatus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Trimorphodon lambda COPE, 1886
- Trimorphodon lyrophanes (COPE, 1860)
- Trimorphodon paucimaculatus TAYLOR, 1936
- Trimorphodon quadruplex SMITH, 1941
- Trimorphodon tau COPE, 1870
- Trimorphodon vilkinsonii COPE, 1886
- Trionyx triunguis (FORSKÅL, 1775)
- Tropidodryas striaticeps (COPE, 1870)
- Tropidolaemus laticinctus KUCH, GUMPRECHT & MELAUN, 2007
- Tropidolaemus wagleri (BOIE, 1827)
- Tropidonophis multiscutellatus (BRONGERSMA, 1948)
- Tropidophorus assamensis ANNANDALE, 1912
- Tropidophorus grayi GÜNTHER, 1861
- Tropidophorus latiscutatus HIKIDA, ORLOV, NABHITABHATA & OTA, 2002
- Tropidophorus sebi PUI, KARIN, BAUER & DAS, 2017
- Tropidurus callathelys HARVEY & GUTBERLET, 1998
- Tropidurus chromatops HARVEY & GUTBERLET, 1998
- Tropidurus semitaeniatus (SPIX, 1825)
- Tropidurus xanthochilus HARVEY & GUTBERLET, 1998
- Tropiocolotes nattereri STEINDACHNER, 1901
- Tropiocolotes wolfgangboehmei WILMS, SHOBRAK & WAGNER, 2010
- Tropiocolotes yomtovi RIBEIRO-JUNIOR, TAMAR, MAZA, FLECKS, WAGNER, SHACHAM, CALVO, GENIEZ, CROCHET, KOCH, & MEIRI, 2022
- Tupinambis matipu SILVA, RIBEIRO-JÚNIOR & ÁVILA-PIRES, 2018
- Typhlacontias rohani ANGEL, 1923
- Typhlops cubae (BIBRON, 1843)
- Typhlops jamaicensis (SHAW, 1802)
- Tytthoscincus jaripendek GRISMER, WOOD, QUAH, ANUAR, NGADI, MOHD-IZAM & AHMAD, 2017
- Tytthoscincus kakikecil GRISMER, WOOD, QUAH, ANUAR, NGADI, MOHD-IZAM & AHMAD, 2017
- Tytthoscincus keciktuek GRISMER, WOOD, AHMAD, BAIZUL-HAFSYAM, AFIQ-SHUHAIMI, RIZAL & QUAH, 2018
- Tytthoscincus martae GRISMER, WOOD, QUAH, ANUAR, NGADI, MOHD-IZAM & AHMAD, 2017
- Tytthoscincus monticolus GRISMER, WOOD, AHMAD, BAIZUL-HAFSYAM, AFIQ-SHUHAIMI, RIZAL & QUAH, 2018
- Ungaliophis panamensis SCHMIDT, 1933
- Uromastyx acanthinura BELL, 1825
- Uromastyx nigriventris ROTHSCHILD & HARTERT, 1912
- Uropeltis macrolepis (PETERS, 1862)
- Uroplatus finaritra RATSOAVINA, RASELIMANANA, SCHERZ, RAKOTOARISON, RAZAFINDRAIBE, GLAW & VENCES, 2019
- Urosaurus auriculatus (COPE, 1871)
- Urosaurus bicarinatus (DUMÉRIL, 1856)
- Urosaurus clarionensis (TOWNSEND, 1890)
- Urosaurus gadovi (SCHMIDT, 1921)
- Urosaurus graciosus HALLOWELL, 1854
- Urosaurus microscutatus (VAN DENBURGH, 1894)
- Urosaurus nigricauda (COPE, 1864)
- Urosaurus ornatus (BAIRD & GIRARD, 1852)
- Urotheca decipiens (GÜNTHER, 1893)
- Urotheca myersi SAVAGE & LAHANAS, 1989
- Uta encantadae GRISMER, 1994
- Uta lowei GRISMER, 1994
- Uta nolascensis VAN DENBURGH & SLEVIN, 1921
- Uta palmeri STEJNEGER, 1890
- Uta squamata DICKERSON, 1919
- Uta stansburiana BAIRD & GIRARD, 1852
- Uta tumidarostra GRISMER, 1994
- Vanzosaura multiscutata (AMARAL, 1933)
- Vanzosaura rubricauda (BOULENGER, 1902)
- Varanus bengalensis (DAUDIN, 1802)
- Varanus caspius (EICHWALD, 1831)
- Varanus flavescens (HARDWICKE & GRAY, 1827)
- Varanus griseus (DAUDIN, 1803)
- Varanus nebulosus (GRAY, 1831)
- Varanus niloticus (LINNAEUS, 1766)
- Varanus obor WEIJOLA & SWEET, 2010
- Varanus olivaceus HALLOWELL, 1857
- Varanus salvator (LAURENTI, 1768)
- Varanus yuwonoi HARVEY & BARKER, 1998
- Vipera ammodytes (LINNAEUS, 1758)
- Vipera aspis (LINNAEUS, 1758)
- Vipera berus (LINNAEUS, 1758)
- Vipera darevskii VEDMEDERJA, ORLOV & TUNIYEV, 1986
- Vipera dinniki NIKOLSKY, 1913
- Vipera eriwanensis (REUSS, 1933)
- Vipera kaznakovi NIKOLSKY, 1909
- Vipera meridionalis BOULENGER, 1903
- Vipera ursinii (BONAPARTE, 1835)
- Walterinnesia aegyptia LATASTE, 1887
- Xantusia extorris WEBB, 1965
- Xantusia gilberti VAN DENBURGH, 1895
- Xantusia sierrae BEZY, 1967
- Xantusia vigilis BAIRD, 1859
- Xenocalamus bicolor GÜNTHER, 1868
- Xenochrophis cerasogaster (CANTOR, 1839)
- Xenochrophis trianguligerus (BOIE, 1827)
- Xenodon dorbignyi (BIBRON, 1854)
- Xenodon histricus (JAN, 1863)
- Xenodon merremii (WAGLER, 1824)
- Xenodon nattereri (STEINDACHNER, 1867)
- Xenodon rabdocephalus (WIED-NEUWIED, 1824)
- Xenodon semicinctus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- Xenopeltis unicolor REINWARDT, 1827
- Xenopholis scalaris (WUCHERER, 1861)
- Xenopholis undulatus (JENSEN, 1900)
- Xenosaurus manipulus NIETO-MONTES DE OCA, CASTRESANA-VILLANUEVA, CANSECO-MÁRQUEZ & CAMPBELL, 2022
- Xerotyphlops vermicularis (MERREM, 1820)
- Yakacoatl tlalli CISNEROS-BERNAL, PALACIOS-AGUILAR, HERNÁNDEZ-JIMÉNEZ, SMITH, FLORES-VILLELA, HERNÁNDEZ-MORALES, OLIVARES LOYOLA & CAMPILLO-GARCÍA, 2025
- Zamenis longissimus (LAURENTI, 1768)
- Zamenis situla (LINNAEUS, 1758)