Snakes
- Leptotyphlopidae - Blind Snakes
- Pythonoidea - Pythons and relatives
- Family Boidae - Boas
- Family Viperidae - Vipers
subfamily Azemiopinae
subfamily Crotalinae
- Agkistrodon bilineatus (Mexican Cantil)
- Agkistrodon contortrix laticinctus (Broad-banded Copperhead)
- Agkistrodon contortrix pictigaster (Trans-Pecos Copperhead)
- Agkistrodon piscivorus (Cottonmouth)
- Atropoides nummifer (Jumping Viper)
- Bothriechis nigroviridis (Black-speckled Palm Pit Viper)
- Bothriechis schlegelii (Oropel Eyelash Viper)
- Bothriechis schlegelii (Eyelash Viper - closeup)
- Bothrops alternatus (Urutu)
- Bothrops asper (Terciopelo - closeup)
- Bothrops bilineatus (Green Jararaca - closeup)
- Bothrops cotiara (Cotiara)
- Bothrops erythromelas (Caatinga Lancehead)
- Bothrops fonsecai (Fonseca's Lancehead)
- Bothrops insularis (Golden Lancehead)
- Bothrops jararaca (Jararaca)
- Bothrops jararacussu (Jararacussu)
- Bothrops leucurus (Bahia Lancehead)
- Bothrops moojeni (Brazilian Lancehead)
- Crotalus adamanteus (Eastern Diamondback Rattlesnake - captive)
- Crotalus aquilus (Queretaro Dusky Rattlesnake)
- Crotalus atrox (Western Diamondback Rattlesnake)
- Crotalus cerastes (Sidewinder Rattlesnake)
- Crotalus culminatus (Middle American Rattlesnake)
- Crotalus enyo (Baja California Rattlesnake)
- Crotalus horridus (Canebrake Rattlesnake - Arkansas)
- Crotalus lepidus lepidus (Mottled Rock Rattlesnake 1)
- Crotalus lepidus lepidus (Mottled Rock Rattlesnake 2)
- Crotalus lepidus klauberi (Banded Rock Rattlesnake)
- Crotalus lepidus klauberi (Banded Rock Rattlesnake) - Chiricahua National Monument
- Crotalus mitchelli stephensi (Panamint Rattlesnake)
- Crotalus molossus molossus {ornatus} (Northern Black-tailed Rattlesnake)
- Crotalus molossus molossus {ornatus} (Northern Black-tailed Rattlesnake) 2
- Crotalus molossus nigrescens (Mexican Black-tailed Rattlesnake)
- Crotalus oreganus oreganus (Northern Pacific Rattlesnake) - Carrizo Plain, CA
- Crotalus oreganus oreganus (Northern Pacific Rattlesnake) - Central Valley, California
- Crotalus oreganus oreganus (Northern Pacific Rattlesnake) - Washington
- Crotalus oreganus cerberus (Arizona Black Rattlesnake)
- Crotalus oreganus cerberus (Arizona Black Rattlesnake) 2
- Crotalus oreganus helleri (Southern Pacific Rattlesnake)
- Crotalus oreganus lutosus (Great Basin Rattlesnake)
- Crotalus polystictus (Mexican Lanceheaded Rattlesnake) - Photo: Estrella Mocino-Deloya
- Crotalus p. pricei (Twin-spotted Rattlesnake)
- Crotalus ravus ravus (Mexican Pigmy Rattlesnake)
- Crotalus ruber ruber (Red Diamond Rattlesnake)
- Crotalus simus tzabcan (Yucatan Rattlesnake) - closeup
- Crotalus simus tzabcan (Yucatan Rattlesnake)
- Crotalus s. scutulatus (Mohave Rattlesnake)
- Crotalus tancitarensis (Tancitaro Rattlesnake)
- Crotalus tancitarensis (Tancitaro Rattlesnake) - neonate
- Crotalus tigris (Tiger Rattlesnake)
- Crotalus tigris (Tiger Rattlesnake - closeup)
- Crotalus unicolor (Aruba Island Rattlesnake)
- Crotalus unicolor (Aruba Island Rattlesnake) - closeup of pits
- Crotalus vegrandis (Uracoan Rattlesnake)
- Crotalus viridis viridis (Prairie Rattlesnake)
- Crotalus willardi willardi (Arizona Ridge-nosed Rattlesnake)
- Crotalus willardi obscurus (New Mexico Ridge-nosed Rattlesnake)
- Lachesis stenophrys (Central American Bushmaster)
- Sistrurus catenatus {tergeminus} edwardsii (Desert Massasauga)
- Sistrurus catenatus {tergeminus} tergeminus (Western Massasauga)
- Sistrurus miliarius barbouri (Dusky Pygmy Rattlesnake)
- Trimeresurus fucatus (Pope's Pitviper)
- Trimeresurus gracilis (Taiwan Mountain Pitviper)
- Trimeresurus purpureomaculatus (Shore Viper)
- Trimeresurus purpureomaculatus (Shore Viper)- Sungei Buloh
- Trimeresurus stejnegeri (Stejneger's Bamboo Pitviper)
- Tropidolaemus wagleri (Wagler's Pit Viper) - Malaysia
- Tropidolaemus wagleri (Wagler's Pit Viper) - Bukit Timah, Singapore
subfamily Viperinae
- Family Colubridae - Colubrid snakes, including many rear-fanged species
- Ahaetulla prasina (Asian Vine Snake)
- Boiga cynodon (Dog-toothed Catsnake)
- Boiga cynodon 2 (Dog-toothed Catsnake)
- Boiga dendrophila (Mangrove Snake)
- Boiga drapiezii (White-spotted Catsnake)
- Boiga kraepelini (Taiwan Treesnake)
- Boiga irregularis (Brown Treesnake)
- Boiga irregularis (Brown Treesnake) - venom extraction
- Chrysopelea paradisi (Paradise Flying Treesnake - Singapore)
- Coluber constrictor flaviventris (Racer) - neonate
- Dendrelaphis formosus (Elegant Bronzeback)
- Dispholidus typus (Boomslang) - venom extraction
- Drymobius margaritiferus (Northern Speckled Racer - Texas)
- Elaphe taeniura (Taiwan Beauty Snake)
- Elaphe taeniura (Taiwan Beauty Snake) - closeup
- Gonyosoma oxycephalum (Red-tailed Ratsnake)
- Gyalopion canum (Chihuahuan Hook-nosed Snake)
- Lampropeltis alterna (Grey-banded Kingsnake)
- Lampropeltis calligaster (Prairie Kingsnake)
- Lampropeltis getula californiae (California Kingsnake) - N. California
- Lampropeltis pyromelana (Arizona Mountain Kingsnake)
- Lampropeltis triangulum (Plains Milksnake)
- Lampropeltis triangulum syspila (Red Milk Snake)
- Lampropeltis zonata (California Mountain Kingsnake) - N. California
- Masticophis flagellum (Coachwhip)
- Masticophis flagellum (Coachwhip) - with Dipodomys
- Masticophis taeniatus (Striped Whipsnake)
- Oxybelis aeneus (Brown Vine Snake)
- Oxybelis fulgidus (Green Vine Snake)
- Pantherophis emoryi (Great Plains Ratsnake)
- Pantherophis obsoletus (Black Ratsnake)
- Pituophis catenifer affinis (Sonoran Gopher Snake)
- Pituophis catenifer catenifer (Pacific Gopher Snake) - N. California
- Pituophis catenifer sayi (Bullsnake)
- Senticolis triaspis (Green Ratsnake)
- Sonora semiannulata (Ground Snake)
- Spilotes pullatus (Tiger Ratsnake) - en face
- Spilotes sulfureus (Amazon Puffing Snake)
- Tantilla cucullata (Big Bend Blackheaded Snake)
- Tantilla nigriceps (Plains Blackheaded Snake - closeup)
- Thelotornis kirtlandii (Twig Snake)
- Trimorphodon biscutatus lambda (Sonoran Lyre Snake)
- Trimorphodon biscutatus lambda (Sonoran Lyre Snake) - venom extraction
- Family Dipsadidae - also many rear-fanged species
- Borikenophis portoricensis (Puerto Rican Racer)
- Diadophis punctatus regalis (Regal Ringneck Snake)
- Erythrolamprus miliarius (Military Ground Snake)
- Heterodon nasicus kennerlyi (Mexican Hognosed Snake) death feigning
- Lystrophis {Xenodon} semicinctus (Ringed Hognosed Snake)
- Philodryas baroni (Baron's Green Racer)
- Pseudoeryx plicatilis (South American Pond Snake)
- Family Elapidae - elapids - Cobras, Kraits, Coral Snakes and allies
- Bungarus flaviceps (Red-headed Krait)
- Demansia psammophis (Yellow-faced Whipsnake)
- Laticauda colubrina (Yellow-lipped Sea Krait)
- Laticauda colubrina (Yellow-lipped Sea Krait) - closeup
- Laticauda semifasciata (Chinese Sea Krait)
- Laticauda laticauda (Black-lipped Sea Krait)
- Micruroides euryxanthus (Sonoran Coral Snake)
- Micrurus altirostris (Uruguayan Coralsnake)
- Micrurus altirostris (Uruguayan Coralsnake) - closeup
- Micrurus corallinus (Painted Coral Snake)
- Micrurus frontalis (Cerrado Coralsnake)
- Micrurus nigrocinctus (Central American Coral Snake)
- Micrurus spixii (Amazonian Coralsnake)
- Micrurus tener (Texas Coral Snake)
- Naja kaouthia (Monacled Cobra)
- Ophiophagus hannah (King Cobra)
- Sinomicrurus sauteri (Asian Coral Snake)
- Family Lamprophiidae
- Family Natricidae - Water Snakes, Garter Snakes and allies
- Macropisthodon rudis (Red Keelback)
- Nerodia sipedon sipedon (Northern Watersnake)
- Thamnophis cyrtopsis (Black-necked Garter Snake)
- Thamnophis elegans vagrans (Wandering Garter Snake)
- Thamnophis radix (Plains Garter Snake)
- Thamnophis sirtalis parietalis (Red-sided Garter Snake)
- Xenochrophis piscator (East Asian Water Snake)
- Family Pareidae
- Family Pseudoxyrhophiidae
- Leioheterodon madagascariensis (Madagascan Hognosed Snake)
