| Genus/Species | Common Name | Image |
| Acutotyphlops banaorum | Unspecified |  |
| Acutotyphlops infralabialis | Unspecified |  |
| Acutotyphlops kunuaensis | Kunua Blind Snake |  |
| Acutotyphlops solomonis | Unspecified |  |
| Acutotyphlops subocularis | Bismarck Sharp-nosed Blind Snake |  |
| Afrotyphlops angolensis | Angola Blind Snake |  |
| Afrotyphlops anomalus | Anomalous Beaked Snake | |
| Afrotyphlops bibronii | Bibron's Blind Snake |  |
| Afrotyphlops blanfordii | Blanford's Blind Snake |  |
| Afrotyphlops brevis | Somali Giant Blind Snake | |
| Afrotyphlops calabresii | Calabresi's Blind Snake | |
| Afrotyphlops chirioi | Unspecified | |
| Afrotyphlops congestus | Blotched Blind Snake |  |
| Afrotyphlops cuneirostris | Wedge-nose Worm Snake | |
| Afrotyphlops elegans | Elegant Worm Snake |  |
| Afrotyphlops fornasinii | Fornasini's Blind Snake |  |
| Afrotyphlops gierrai | Usambara Spotted Worm Snake |  |
| Afrotyphlops kaimosae | Kaimosi Blind Snake | |
| Afrotyphlops liberiensis | Liberian Blind Snake |  |
| Afrotyphlops lineolatus | Lineolate Worm Snake |  |
| Afrotyphlops mucruso | Zambezi Blind Snake |  |
| Afrotyphlops nanus | Kenyan Dwarf Blind Snake | |
| Afrotyphlops nigrocandidus | Bicoloured Blind Snake |  |
| Afrotyphlops obtusus | Slender Blind Snake |  |
| Afrotyphlops platyrhynchus | Tanga Worm Snake |  |
| Afrotyphlops punctatus | Spotted Worm Snake |  |
| Afrotyphlops rondoensis | Rondo Worm Snake | |
| Afrotyphlops rouxestevae | Tanga Worm Snake |  |
| Afrotyphlops schlegelii | Schlegel's Giant Blind Snake |  |
| Afrotyphlops schmidti | Schmidt's Worm Snake |  |
| Afrotyphlops steinhausi | Steinhaus' Worm Snake | |
| Afrotyphlops tanganicanus | Liwale Blind Snake |  |
| Afrotyphlops usambaricus | Usambara Blind Snake | |
| Amerotyphlops amoipira | Unspecified |  |
| Amerotyphlops arenarius | Sand Worm Snake |  |
| Amerotyphlops brongersmianus | Brongersma's Worm Snake |  |
| Amerotyphlops costaricensis | Costa Rica Worm Snake |  |
| Amerotyphlops lehneri | Estado Falcon Worm Snake | |
| Amerotyphlops microstomus | Yucatan Worm Snake |  |
| Amerotyphlops minuisquamus | Basin Worm Snake |  |
| Amerotyphlops paucisquamus | Pernambuco Worm Snake |  |
| Amerotyphlops reticulatus | Reticulate Worm Snake |  |
| Amerotyphlops stadelmani | Stadelman's Worm Snake |  |
| Amerotyphlops tasymicris | Granada Worm Snake |  |
| Amerotyphlops tenuis | Coffee Worm Snake |  |
| Amerotyphlops trinitatus | Trinidad Worm Snake |  |
| Amerotyphlops tycherus | Unspecified |  |
| Amerotyphlops yonenagae | Yonenga Worm Snake |  |
| Anilios affinis | Small-headed Blind Snake |  |
| Anilios ammodytes | Sand-diving Blind Snake |  |
| Anilios aspina | Round-tailed Blind Snake |  |
| Anilios australis | Southern Blind Snake |  |
| Anilios batillus | Batillus Blind Snake |  |
| Anilios bicolor | Dark-spined Blind Snake |  |
| Anilios bituberculatus | Prong-snouted Blind Snake |  |
| Anilios broomi | Faint-striped Blind Snake |  |
| Anilios centralis | Centralian Blind Snake |  |
| Anilios chamodracaena | Cape York Striped Blind Snake |  |
| Anilios diversus | Northern Blind Snake |  |
| Anilios endoterus | Interior Blind Snake |  |
| Anilios erycinus | Northern New Guinea Blind Snake |  |
| Anilios fossor | Miner Blind Snake |  |
| Anilios ganei | Gane's Blind Snake |  |
| Anilios grypus | Long-beaked Blind Snake |  |
| Anilios guentheri | Top End Blind Snake |  |
| Anilios hamatus | Pale-headed Blind Snake |  |
| Anilios howi | Kimberley Deep-soil Blind Snake |  |
| Anilios insperatus | Fassifern Blind Snake |  |
| Anilios kimberleyensis | Kimberley Shallow-soil Blind Snake |  |
| Anilios leptosomus | Murchison Blind Snake |  |
| Anilios leucoproctus | White-tailed Blind Snake |  |
| Anilios ligatus | Robust Blind Snake |  |
| Anilios longissimus | Extremely Long Blind Snake |  |
| Anilios margaretae | Buff-snouted Blind Snake |  |
| Anilios micrommus | Small-eyed Blind Snake |  |
| Anilios minimus | Groote Dwarf Blind Snake |  |
| Anilios nema | Thread-like Blind Snake |  |
| Anilios nigrescens | Blackish Blind Snake |  |
| Anilios pilbarensis | Pilbara Blind Snake |  |
| Anilios pinguis | Rotund Blind Snake |  |
| Anilios proximus | Proximus Blind Snake |  |
| Anilios robertsi | Roberts' Blind Snake |  |
| Anilios silvia | Great Sandy Blind Snake |  |
| Anilios splendidus | Splendid Blind Snake |  |
| Anilios systenos | Sharp-snouted Blind Snake |  |
| Anilios torresianus | Torres Strait Blind Snake |  |
| Anilios tovelli | Darwin Blind Snake |  |
| Anilios troglodytes | Sandamara Blind Snake |  |
| Anilios unguirostris | Claw-snouted Blind Snake |  |
| Anilios waitii | Beaked Blind Snake |  |
| Anilios wiedii | Brown-snouted Blind Snake |  |
| Anilios yampiensis | Yampi Blind Snake |  |
| Anilios yirrikalae | Yirrkala Blind Snake |  |
| Antillotyphlops annae | Saint Bartholemew's Blind Snake |  |
| Antillotyphlops catapontus | Erica's Worm Snake |  |
| Antillotyphlops dominicanus | Dominican Blind Snake |  |
| Antillotyphlops geotomus | Leeward Blindsnake |  |
| Antillotyphlops granti | Grant's Blind Snake |  |
| Antillotyphlops guadeloupensis | Guadeloupe Worm Snake |  |
| Antillotyphlops hypomethes | Coastal Blind Snake |  |
| Antillotyphlops monastus | Montserrat Worm Snake |  |
| Antillotyphlops monensis | Mona Blind Snake |  |
| Antillotyphlops naugus | Unspecified | |
| Antillotyphlops platycephalus | Flat-headed Blind Snake |  |
| Antillotyphlops richardii | Richard's Blind Snake |  |
| Argyrophis bothriorhynchus | Gunther's Blind Snake | |
| Argyrophis diardii | Diard's Blind Snake |  |
| Argyrophis fuscus | Brown Worm Snake | |
| Argyrophis giadinhensis | Vietnam Worm Snake | |
| Argyrophis hypsobothrius | Sumatra Worm Snake | |
| Argyrophis klemmeri | Klemmer's Blind Snake |  |
| Argyrophis koshunensis | Koshun Worm Snake |  |
| Argyrophis muelleri | Muller's Blind Snake |  |
| Argyrophis oatesii | Andaman Island Worm Snake |  |
| Argyrophis roxaneae | Roxane's Blind Snake |  |
| Argyrophis siamensis | Thailand Worm Snake |  |
| Argyrophis trangensis | Trang Worm Snake |  |
| Cubatyphlops anchaurus | Maisi Blind Snake | |
| Cubatyphlops anousius | Cuban Pallid Blind Snake | |
| Cubatyphlops arator | Cuban Giant Blind Snake | |
| Cubatyphlops biminiensis | Slender Blind Snake |  |
| Cubatyphlops caymanensis | Cayman Worm Snake | |
| Cubatyphlops contorhinus | Cuban Short-nosed Blind Snake | |
| Cubatyphlops epactius | Cayman Brac Blind Snake | |
| Cubatyphlops golyathi | Goliath Blind Snake |  |
| Cubatyphlops notorachius | Imias Blind Snake | |
| Cubatyphlops paradoxus | Unspecified | |
| Cubatyphlops perimychus | Guantanamo Bay Blind Snake |  |
| Cubatyphlops satelles | Cienfuegos Blind Snake | |
| Cyclotyphlops deharvengi | Deharveng's Blind Snake |  |
| Grypotyphlops acutus | Beaked Worm Snake |  |
| Indotyphlops ahsanai | Unspecified | |
| Indotyphlops albiceps | White-headed Blind Snake |  |
| Indotyphlops braminus | Brahminy Blind Snake |  |
| Indotyphlops exiguus | Belgaum Worm Snake | |
| Indotyphlops filiformis | File Worm Snake | |
| Indotyphlops fletcheri | Fletcher's Worm Snake | |
| Indotyphlops jerdoni | Jerdon's Worm Snake | |
| Indotyphlops lankaensis | Sri Lanka Worm Snake |  |
| Indotyphlops lazelli | Unspecified |  |
| Indotyphlops leucomelas | Pied Worm Snake |  |
| Indotyphlops longissimus | Long Worm Snake | |
| Indotyphlops loveridgei | Loveridge's Worm Snake | |
| Indotyphlops madgemintonae | Unspecified |  |
| Indotyphlops malcolmi | Malcolm's Worm Snake |  |
| Indotyphlops meszoelyi | Darjeeling Worm Snake |  |
| Indotyphlops ozakiae | Ozaki's Blind Snake |  |
| Indotyphlops pammeces | South India Worm Snake | |
| Indotyphlops porrectus | Slender Worm Snake |  |
| Indotyphlops schmutzi | Schmutz' Worm Snake | |
| Indotyphlops tenebrarum | Unspecified |  |
| Indotyphlops tenuicollis | Samagutin Worm Snake | |
| Indotyphlops veddae | Vedda Worm Snake |  |
| Indotyphlops violaceus | Violet Worm Snake |  |
| Letheobia acutirostrata | Unspecified | |
| Letheobia akagerae | Akagera Gracile Blind Snake |  |
| Letheobia angeli | Angeli Blind Snake | |
| Letheobia caeca | Gabon Beaked Snake |  |
| Letheobia coecatus | Ghana Beaked Blind Snake | |
| Letheobia crossii | Cross' Beaked Snake | |
| Letheobia decorosa | Cameroon Worm Snake |  |
| Letheobia debilis | Feeble Gracile Blind Snake |  |
| Letheobia episcopus | Unspecified |  |
| Letheobia erythraea | Eritrean Blind Snake | |
| Letheobia feae | St Thomas Beaked Snake |  |
| Letheobia gracilis | Urungu Beaked Snake |  |
| Letheobia graueri | Sternfeld's Beaked Snake | |
| Letheobia jubana | Unspecified | |
| Letheobia kibarae | Katanga Beaked Snake | |
| Letheobia largeni | Largen's Gracile Blind Snake |  |
| Letheobia leucosticta | Liberia Worm Snake | |
| Letheobia logonensis | Unspecified | |
| Letheobia lumbriciformis | Worm-like Blind Snake |  |
| Letheobia manni | Mann's Worm Snake |  |
| Letheobia mbeerensis | Unspecified |  |
| Letheobia newtonii | Newton's Beaked Blind Snake |  |
| Letheobia pallida | Zanzibar Beaked Snake |  |
| Letheobia pauwelsi | Unspecified |  |
| Letheobia pembana | Pemba Gracile Blind Snake | |
| Letheobia praeocularis | Leopoldville Beaked Snake |  |
| Letheobia rufescens | Haut-Oubangui Beaked Snake | |
| Letheobia simoni | Simon's Beaked Blind Snake |  |
| Letheobia somalica | Highland Beaked Snake |  |
| Letheobia stejnegeri | Stejneger's Beaked Snake |  |
| Letheobia sudanensis | Sudan Beaked Snake | |
| Letheobia swahilica | Swahili Gracile Blind Snake |  |
| Letheobia toritensis | Torit Gracile Blind Snake | |
| Letheobia uluguruensis | Uluguri Worm Snake | |
| Letheobia weidholzi | Weidholz' Pink Blind Snake |  |
| Letheobia wittei | De Witte's Beaked Snake |  |
| Letheobia zenkeri | Zenker's Worm Snake | |
| Madatyphlops albanalis | Unspecified | |
| Madatyphlops andasibensis | Andasibe Blind Snake |  |
| Madatyphlops arenarius | Sand Worm Snake |  |
| Madatyphlops boettgeri | Boettger's Worm Snake | |
| Madatyphlops comorensis | Comoro Worm Snake |  |
| Madatyphlops decorsei | Mocquard's Worm Snake |  |
| Madatyphlops domerguei | Unspecified |  |
| Madatyphlops leucocephalus | White-headed Beaked Snake | |
| Madatyphlops madagascariensis | Madagascar Worm Snake | |
| Madatyphlops microcephalus | Unspecified |  |
| Madatyphlops mucronatus | Boettger's Worm Snake |  |
| Madatyphlops ocularis | Parker's Worm Snake |  |
| Madatyphlops rajeryi | Unspecified |  |
| Madatyphlops reuteri | Reuter's Blind Snake | |
| Malayotyphlops andyi | Andy's Blind Snake | |
| Malayotyphlops canlaonensis | Taylor's Worm Snake | |
| Malayotyphlops castanotus | Wynn's Worm Snake | |
| Malayotyphlops collaris | Collared Worm Snake | |
| Malayotyphlops hypogius | Cebu Island Worm Snake |  |
| Malayotyphlops koekkoeki | Boenjoe Island Worm Snake | |
| Malayotyphlops kraalii | Kei Island Worm Snake | |
| Malayotyphlops luzonensis | Luzon Worm Snake |  |
| Malayotyphlops manilae | Manila Worm Snake | |
| Malayotyphlops ruber | Red Worm Snake | |
| Malayotyphlops ruficaudus | Red-headed Worm Snake |  |
| Ramphotyphlops acuticaudus | Palau Blind Snake |  |
| Ramphotyphlops adocetus | Unspecified |  |
| Ramphotyphlops angusticeps | Arboreal Blind Snake |  |
| Ramphotyphlops becki | Beck's Blind Snake | |
| Ramphotyphlops bipartitus | Southern New Guinea Blind Snake | |
| Ramphotyphlops conradi | Conrad's Worm Snake |  |
| Ramphotyphlops cumingii | Cuming's Blind Snake |  |
| Ramphotyphlops depressus | Melanesia Blind Snake |  |
| Ramphotyphlops exocoeti | Christmas Island Blind Snake |  |
| Ramphotyphlops flaviventer | Yellow-bellied Blind Snake |  |
| Ramphotyphlops hatmaliyeb | Unspecified |  |
| Ramphotyphlops lineatus | Striped Blind Snake |  |
| Ramphotyphlops lorenzi | Lorenz' Blind Snake | |
| Ramphotyphlops mansuetus | Small-headed Blind Snake | |
| Ramphotyphlops marxi | Marx's Worm Snake |  |
| Ramphotyphlops multilineatus | Hook-nosed Blind Snake | |
| Ramphotyphlops olivaceus | Olive Blind Snake |  |
| Ramphotyphlops similis | Manukwari Blind Snake | |
| Ramphotyphlops suluensis | Sulu Islands Worm Snake | |
| Ramphotyphlops supranasalis | Salawati Blind Snake | |
| Ramphotyphlops willeyi | Loyalty Islands Blind Snake | |
| Rhinotyphlops ataeniatus | Somali Blind Snake | |
| Rhinotyphlops boylei | Boyle's Beaked Blind Snake | |
| Rhinotyphlops lalandei | Delalande's Beaked Blind Snake |  |
| Rhinotyphlops leucocephalus | White-headed Beaked Snake | |
| Rhinotyphlops schinzi | Schinz' Beaked Blind Snake |  |
| Rhinotyphlops scortecci | Scortecci's Blind Snake | |
| Rhinotyphlops unitaeniata | Yellow-striped Blind Snake |  |
| Sundatyphlops polygrammicus | Southern New Guinea Blind Snake |  |
| Typhlops agoralionis | La Hotte Blind Snake |  |
| Typhlops capitulatus | Richmond's Worm Snake | |
| Typhlops eperopeus | Bahoruco Blind Snake |  |
| Typhlops gonavensis | Gonave Island Worm Snake | |
| Typhlops grivensis | Unspecified | |
| Typhlops hectus | La Hotte Blind Snake |  |
| Typhlops jamaicensis | Jamaican Blind Snake |  |
| Typhlops leptolepis | Unspecified |  |
| Typhlops lumbricalis | Zanzibar Gracile Blind Snake |  |
| Typhlops oxyrhinus | Unspecified | |
| Typhlops pachyrhinus | Unspecified | |
| Typhlops proancylops | La Selle Blind Snake | |
| Typhlops pusillus | Hispaniola Worm Snake | |
| Typhlops rostellatus | Puerto Rican Wetland Blind Snake |  |
| Typhlops schwartzi | Schwartz's Worm Snake |  |
| Typhlops silus | Unspecified |  |
| Typhlops sulcatus | Sulcate Blind Snake |  |
| Typhlops sylleptor | Pestel Blind Snake |  |
| Typhlops syntherus | Barahona Blind Snake |  |
| Typhlops tetrathyreus | Haitian Worm Snake |  |
| Typhlops titanops | Titan Worm Snake |  |
| Xerotyphlops etheridgei | Etheridge's Worm Snake | |
| Xerotyphlops luristanicus | Lorestan Blind Snake | |
| Xerotyphlops socotranus | Socotra Worm Snake |  |
| Xerotyphlops vermicularis | Eurasian Blind Snake |  |
| Xerotyphlops wilsoni | Irani Worm Snake |  |
| Genus/Species | Common Name | Image |
| Melanophidium bilineatum | Two-lined Black Earth Snake |  |
| Melanophidium khairei | Unspecified |  |
| Melanophidium punctatum | Beddome's Black Earth Snake |  |
| Melanophidium wynaudense | Indian Black Earth Snake |  |
| Platyplectrurus madurensis | Travancore Hills Thorntail Snake |  |
| Platyplectrurus trilineatus | Lined Thorntail Snake |  |
| Plectrurus aureus | Kerala Burrowing Snake |  |
| Plectrurus guentheri | Gunther's Burrowing Snake |  |
| Plectrurus perroteti | Nilgiri Burrowing Snake |  |
| Pseudoplectrurus canaricus | Karnataka Burrowing Snake |  |
| Rhinophis blythii | Blyth's Earth Snake |  |
| Rhinophis dorsimaculatus | Polkadot Earth Snake |  |
| Rhinophis drummondhayi | Drummond-Hay's Earth Snake |  |
| Rhinophis erangaviraji | Eranga Viraj's Shieldtail Snake |  |
| Rhinophis fergusonianus | Cardamom Hills Earth Snake |  |
| Rhinophis goweri | Gower's Shieldtail Snake |  |
| Rhinophis homolepis | Trevelyan's Earth Snake |  |
| Rhinophis lineatus | Striped Earth Snake |  |
| Rhinophis melanogaster | Gray's Shieldtail Snake |  |
| Rhinophis oxyrynchus | Schneider's Earth Snake |  |
| Rhinophis philippinus | Peter's Earth Snake |  |
| Rhinophis phillipsi | Phillips' Shieldtail Snake |  |
| Rhinophis porrectus | Willey's Earth Snake |  |
| Rhinophis punctatus | M ller's Earth Snake |  |
| Rhinophis saffragamus | Large Shieldtail Snake |  |
| Rhinophis sanguineus | Salty Earth Snake |  |
| Rhinophis travancoricus | Tamil Nadu Earth Snake |  |
| Rhinophis tricolorata | Unspecified |  |
| Rhinophis zigzag | Zigzag Shieldtail Snake |  |
| Teretrurus rhodogaster | Mountain Burrowing Snake |  |
| Teretrurus sanguineus | Purple-red Earth Snake |  |
| Uropeltis arcticeps | Tinevelly Shieldtail Snake |  |
| Uropeltis beddomii | Beddome's Shieldtail Snake |  |
| Uropeltis bhupathyi | Bhupathy's Shieldtail Snake |  |
| Uropeltis bicatenata | Two-chained Shieldtail Snake |  |
| Uropeltis broughami | Sirumallay's Shieldtail Snake | |
| Uropeltis ceylanica | Cuvier's Shieldtail Snake |  |
| Uropeltis dindigalensis | Dindigul Shieldtail Snake |  |
| Uropeltis ellioti | Elliot's Shieldtail Snake |  |
| Uropeltis grandi | Smith's Shieldtail Snake |  |
| Uropeltis liura | Gunther's Shieldtail Snake |  |
| Uropeltis macrolepis | Bombay Shieldtail Snake |  |
| Uropeltis macrorhyncha | Ponachi Shieldtail Snake | |
| Uropeltis maculata | Spotted Shieldtail Snake |  |
| Uropeltis madurensis | Madurai Shieldtail Snake |  |
| Uropeltis myhendrae | Barred Shieldtail Snake |  |
| Uropeltis nitida | Cochin Shieldtail Snake |  |
| Uropeltis ocellata | Nilgiri Shieldtail Snake |  |
| Uropeltis petersi | Peters' Shieldtail Snake |  |
| Uropeltis phipsonii | Phipson's Shieldtail Snake |  |
| Uropeltis pulneyensis | Palni Shieldtail Snake |  |
| Uropeltis rubrolineata | Red-lined Shieldtail Snake |  |
| Uropeltis rubromaculata | Red-spotted Shieldtail Snake |  |
| Uropeltis shorttii | Shevaroy Hills Earth Snake |  |
| Uropeltis woodmasoni | Woodmason's Earth Snake |  |
| Genus/Species | Common Name | Image |
| Agkistrodon bilineatus | Cantil |  |
| Agkistrodon conanti | Florida Cottonmouth |  |
| Agkistrodon contortrix | Southern Copperhead |  |
| Agkistrodon howardgloydi | Gloyd's Moccasin |  |
| Agkistrodon laticinctus | Broad-banded Copperhead |  |
| Agkistrodon piscivorus | Eastern Cottonmouth |  |
| Agkistrodon russeolus | Yucatecan Cantil |  |
| Agkistrodon taylori | Mexican Moccasin |  |
| Atheris acuminata | Acuminate Bush Viper |  |
| Atheris anisolepis | Mayombe Bush Viper |  |
| Atheris barbouri | Barbour's Short-headed Viper |  |
| Atheris broadleyi | Cameroon Bush Viper |  |
| Atheris ceratophora | Usambara Bush Viper |  |
| Atheris chlorechis | Western Bush Viper |  |
| Atheris desaixi | Ashe's Bush Viper |  |
| Atheris hirsuta | Green Bush Viper |  |
| Atheris hispida | African Hairy Bush Viper |  |
| Atheris katangensis | Katanga Mountain Bush Viper |  |
| Atheris mabuensis | Unspecified |  |
| Atheris matildae | Matilda's Horned Viper |  |
| Atheris nitschei | Great Lakes Bush Viper |  |
| Atheris rungweensis | Rungwe Bush Viper |  |
| Atheris squamigera | African Bush Viper |  |
| Atheris subocularis | Leaf Viper |  |
| Atropoides indomitus | Unspecified |  |
| Atropoides mexicanus | Unspecified |  |
| Atropoides nummifer | Jumping Viper |  |
| Atropoides occiduus | Unspecified |  |
| Atropoides olmec | Tuxtlan Jumping Pit Viper |  |
| Atropoides picadoi | Picado's Pit Viper |  |
| Azemiops feae | Fea's Viper |  |
| Azemiops kharini | White-headed Fea Viper |  |
| Bitis albanica | Albany Adder |  |
| Bitis arietans | Puff Adder |  |
| Bitis armata | Southern Adder |  |
| Bitis atropos | Mountain Adder |  |
| Bitis caudalis | Horned Adder |  |
| Bitis cornuta | Many-horned Adder |  |
| Bitis gabonica | Gaboon Adder |  |
| Bitis harenna | Bale Mountains Adder |  |
| Bitis heraldica | Angolan Adder |  |
| Bitis inornata | Plain Mountain Adder |  |
| Bitis nasicornis | Rhinoceros Viper |  |
| Bitis parviocula | Ethiopian Viper |  |
| Bitis peringueyi | Peringuey's Adder |  |
| Bitis rhinoceros | West African Gaboon Viper |  |
| Bitis rubida | Red Adder |  |
| Bitis schneideri | Namaqua Dwarf Adder |  |
| Bitis worthingtoni | Kenya Horned Viper |  |
| Bitis xeropaga | Desert Mountain Adder |  |
| Bothriechis aurifer | Yellow-blotched Palm Pit Viper |  |
| Bothriechis bicolor | Guatemala Palm Pit Viper |  |
| Bothriechis guifarroi | Guifarro's Palm Pit Viper |  |
| Bothriechis lateralis | Coffee Palm Viper |  |
| Bothriechis marchi | March's Palm Pit Viper |  |
| Bothriechis nigroviridis | Black-speckled Palm Pit Viper |  |
| Bothriechis nubestris | Talamancan Palm Pit Viper |  |
| Bothriechis rowleyi | Rowley's Palm Pit Viper |  |
| Bothriechis schlegelii | Eyelash Viper |  |
| Bothriechis supraciliaris | Blotched Palm Pit Viper |  |
| Bothriechis thalassinus | Morendon Palm Pit Viper |  |
| Bothrocophias andianus | Andean Lancehead |  |
| Bothrocophias campbelli | Ecuadorian Toad-headed Pit Viper |  |
| Bothrocophias colombianus | Unspecified |  |
| Bothrocophias hyoprora | Amazonian Toad-headed Pit Viper |  |
| Bothrocophias microphthalmus | Small-eyed Toad-headed Pit Viper |  |
| Bothrocophias myersi | Chocoan Toad-headed Pit Viper |  |
| Bothrops alcatraz | Alcatraz Lancehead |  |
| Bothrops alternatus | Urutu |  |
| Bothrops ammodytoides | Yararanata |  |
| Bothrops asper | Terciopelo |  |
| Bothrops atrox | Fer-de-lance |  |
| Bothrops ayerbei | Ayerbe's Lancehead |  |
| Bothrops barnetti | Barnett's Lancehead |  |
| Bothrops bilineata | Green Jararaca |  |
| Bothrops brazili | Brazil's Lancehead |  |
| Bothrops caribbaeus | Saint Lucian Fer-de-lance |  |
| Bothrops chloromelas | Inca Forest Pit Viper |  |
| Bothrops cotiara | Cotiara |  |
| Bothrops diporus | Painted Lancehead |  |
| Bothrops erythromelas | Caatinga Lancehead |  |
| Bothrops fonsecai | Fonseca's Lancehead |  |
| Bothrops insularis | Golden Lancehead |  |
| Bothrops itapetiningae | Sao Paulo Lancehead |  |
| Bothrops jararaca | Jararaca |  |
| Bothrops jararacussu | Jararacussu |  |
| Bothrops jonathani | Jonathan's Lancehead |  |
| Bothrops lanceolatus | Martinique Lancehead |  |
| Bothrops leucurus | Whitetail Lancehead |  |
| Bothrops lojanus | Lojan Lancehead |  |
| Bothrops lutzi | Sertao Lancehead |  |
| Bothrops marajoensis | Maraj Lancehead |  |
| Bothrops marmoratus | Marbled Lancehead |  |
| Bothrops matogrossensis | Unspecified |  |
| Bothrops medusa | Venezuela Forest Pit Viper |  |
| Bothrops moojeni | Brazilian Lancehead |  |
| Bothrops muriciensis | Murici Lancehead |  |
| Bothrops neuwiedi | Jararaca Pintada |  |
| Bothrops oligolepis | Peru Forest Pit Viper |  |
| Bothrops osbornei | Osborne's Lancehead. |  |
| Bothrops otavioi | Vitoria's Lancehead |  |
| Bothrops pauloensis | Unspecified |  |
| Bothrops pictus | Desert Lancehead |  |
| Bothrops pirajai | Piraja's Lancehead |  |
| Bothrops pubescens | Unspecified |  |
| Bothrops pulchra | Andean Forest Pit Viper |  |
| Bothrops punctata | Unspecified |  |
| Bothrops rhombeatus | Cat Lancehead |  |
| Bothrops sanctaecrucis | Bolivian Lancehead |  |
| Bothrops taeniata | Speckled Forest Pit Viper |  |
| Bothrops venezuelensis | Venezuela Lancehead |  |
| Calloselasma rhodostoma | Malayan Pit Viper |  |
| Causus bilineatus | Two-lined Night Adder |  |
| Causus defilippii | Snouted Night Adder |  |
| Causus lichtensteinii | Forest Night Adder |  |
| Causus maculatus | Spotted Night Adder |  |
| Causus rasmusseni | Rasmussen's Night Adder |  |
| Causus resimus | Green Night Adder |  |
| Causus rhombeatus | Rhombic Night Adder |  |
| Cerastes boehmei | Boehme's Horned Viper |  |
| Cerastes cerastes | Desert Horned Viper |  |
| Cerastes gasperettii | Gasperetti's Horned Viper |  |
| Cerastes vipera | Hypo Lesser Sand Viper |  |
| Cerrophidion godmani | Godman's Montane Pit Viper |  |
| Cerrophidion petlalcalensis | Petlalcala Montane Pit Viper |  |
| Cerrophidion sasai | Costa Rica Montane Pit Viper |  |
| Cerrophidion tzotzilorum | Tzotzil Montane Pit Viper |  |
| Cerrophidion wilsoni | Wilson's Montane Pit Viper |  |
| Crotalus adamanteus | Eastern Diamond-back Rattlesnake |  |
| Crotalus angelensis | Isla Angel Rattlesnake |  |
| Crotalus aquilus | Queretaran Dusky Rattlesnake |  |
| Crotalus armstrongi | Mexican Dusky Rattlesnake |  |
| Crotalus atrox | Western Diamond-back Rattlesnake |  |
| Crotalus basiliscus | Mexican West Coast Rattlesnake |  |
| Crotalus campbelli | Campbell's Rattlesnake |  |
| Crotalus catalinensis | Santa Catalina Island Rattlesnake |  |
| Crotalus cerastes | Sidewinder |  |
| Crotalus cerberus | Arizona Black Rattlesnake |  |
| Crotalus culminatus | Unspecified |  |
| Crotalus durissus | South American Rattlesnake |  |
| Crotalus enyo | Baja California Rattlesnake |  |
| Crotalus ericsmithi | Guerreran Long-tailed Rattlesnake |  |
| Crotalus horridus | Timber Rattlesnake |  |
| Crotalus intermedius | Mexican Small-headed Rattlesnake |  |
| Crotalus lannomi | Autlan Rattlesnake |  |
| Crotalus lepidus | Rock Rattlesnake |  |
| Crotalus mitchelli | Speckled Rattlesnake |  |
| Crotalus molossus | Black-tailed Rattlesnake |  |
| Crotalus morulus | Tamaulipan Rock Rattlesnake |  |
| Crotalus oreganus | Western Rattlesnake |  |
| Crotalus ornatus | Eastern Black-tailed Rattlesnake |  |
| Crotalus polystictus | Mexican Lance-head Rattlesnake |  |
| Crotalus pricei | Twin-spotted Rattlesnake |  |
| Crotalus pusillus | Tancitaran Dusky Rattlesnake |  |
| Crotalus pyrrhus | Southwestern Speckled Rattlesnake |  |
| Crotalus ravus | Mexican Pygmy Rattlesnake |  |
| Crotalus ruber | Red Diamond Rattlesnake |  |
| Crotalus scutulatus | Mohave Rattlesnake |  |
| Crotalus simus | Unspecified |  |
| Crotalus stejnegeri | Long-tailed Rattlesnake |  |
| Crotalus stephensi | Speckled Rattlesnake |  |
| Crotalus tancitarensis | Tanc taran Rattlesnake |  |
| Crotalus tigris | Tiger Rattlesnake |  |
| Crotalus tlaloci | Tlaloc's Rattlesnake |  |
| Crotalus totonacus | Unspecified |  |
| Crotalus transversus | Cross-banded Mountain Rattlesnake |  |
| Crotalus triseriatus | Mexican Dusky Rattlesnake |  |
| Crotalus tzabcan | Unspecified |  |
| Crotalus vegrandis | Uracoan Rattlesnake |  |
| Crotalus viridis | Prairie Rattlesnake |  |
| Crotalus willardi | Ridge-nosed Rattlesnake |  |
| Daboia mauritanica | Moorish Viper |  |
| Daboia palaestinae | Palestine Viper |  |
| Daboia russelii | Russell's Viper |  |
| Daboia siamensis | Eastern Russell's Viper |  |
| Deinagkistrodon acutus | Hundred-pace Viper |  |
| Echis borkini | Borkin's Carpet Viper |  |
| Echis carinatus | Saw-scaled Viper |  |
| Echis coloratus | Palestine Saw-scaled Viper |  |
| Echis hughesi | Hughes' Saw-scaled Viper |  |
| Echis jogeri | Joger's Saw-scaled Viper |  |
| Echis khosatzkii | Khosatzki's Saw-scaled Viper |  |
| Echis leucogaster | Roman's Saw-scaled Viper |  |
| Echis megalocephalus | Cherlin's Saw-scaled Viper |  |
| Echis ocellatus | West African Carpet Viper |  |
| Echis omanensis | Oman Saw-scaled Viper |  |
| Echis pyramidum | Egyptian Saw-scaled Viper |  |
| Eristicophis macmahoni | McMahon's Viper |  |
| Garthius chaseni | Chasen s Pit Viper |  |
| Gloydius blomhoffi | Mamushi |  |
| Gloydius brevicaudus | Chinese Mamushi |  |
| Gloydius halys | Haly's Pit Viper |  |
| Gloydius himalayanus | Himalayan Pit Viper |  |
| Gloydius intermedius | Central Asian Pit Viper |  |
| Gloydius lijianlii | Shandong Pit Viper |  |
| Gloydius liupanensis | Halys Pit Viper | |
| Gloydius monticola | Likiang Pit Viper |  |
| Gloydius rickmersi | Unspecified |  |
| Gloydius saxatilis | Amur Viper |  |
| Gloydius shedaoensis | Shedao Island Pit Viper |  |
| Gloydius strauchi | Strauch s Pit Viper |  |
| Gloydius tsushimaensis | Tsushima Island Pit Viper |  |
| Gloydius ussuriensis | Ussuri Mamushi |  |
| Hypnale hypnale | Merrem's Hump-nose Viper |  |
| Hypnale nepa | Sri Lanka Hump-nosed Viper |  |
| Hypnale walli | Wall's Hump-nosed Viper |  |
| Lachesis achrocorda | Unspecified |  |
| Lachesis melanocephala | Black-headed Bushmaster |  |
| Lachesis muta | Bushmaster |  |
| Lachesis stenophrys | Central American Bushmaster |  |
| Macrovipera lebetina | Levantine Viper |  |
| Macrovipera schweizeri | Milos Viper |  |
| Mixcoatlus barbouri | Barbour's Montane Pit Viper |  |
| Mixcoatlus browni | Brown's Montane Pit Viper |  |
| Mixcoatlus melanurus | Black-tailed Horned Pit Viper |  |
| Montatheris hindii | Montane Viper |  |
| Montivipera albizona | Unspecified |  |
| Montivipera bornmuelleri | Bornmueller's Viper |  |
| Montivipera bulgardaghica | Mount Bulgar Viper |  |
| Montivipera kuhrangica | Kuhrang Mountain Viper |  |
| Montivipera latifii | Latifi's Viper |  |
| Montivipera raddei | Radde s Rock Viper |  |
| Montivipera wagneri | Wagner sViper |  |
| Montivipera xanthina | Ottoman Viper |  |
| Ophryacus smaragdinus | Emerald Horned Pit Viper |  |
| Ophryacus sphenophrys | Broad-horned Pit Viper |  |
| Ophryacus undulatus | Mexican Horned Pit Viper |  |
| Ovophis convictus | Indo-Malayan Mountain Pit Viper |  |
| Ovophis makazayazaya | Taiwan Mountain Pit Viper |  |
| Ovophis monticola | Chinese Mountain Pit Viper |  |
| Ovophis okinavensis | Okinawa Pit Viper |  |
| Ovophis tonkinensis | Tonkin Pit Viper |  |
| Ovophis zayuensis | Zayuan Mountain Pit Viper |  |
| Porthidium arcosae | Manab Hog-nosed Pit Viper |  |
| Porthidium dunni | Dunn's Hog-nosed Pit Viper |  |
| Porthidium hespere | Western Hog-nosed Pit Viper |  |
| Porthidium lansbergii | Lansberg's Hog-nosed Pit Viper |  |
| Porthidium nasutum | Rainforest Hog-nosed Pit Viper |  |
| Porthidium ophryomegas | Slender Hog-nosed Pit Viper |  |
| Porthidium porrasi | White-tailed Hog-nosed Pit Viper |  |
| Porthidium volcanicum | Ujarran Hog-nosed Pit Viper |  |
| Porthidium yucatanicum | Yucatan Hog-nosed Pit Viper |  |
| Proatheris superciliaris | Lowland Swamp Viper |  |
| Protobothrops cornutus | Horned Pit Viper |  |
| Protobothrops dabieshanensis | Dabie Mountains Pit Viper |  |
| Protobothrops elegans | Elegant Pit Viper |  |
| Protobothrops flavoviridis | Okinawan Habu |  |
| Protobothrops himalayanus | Unspecified |  |
| Protobothrops jerdonii | Jerdon's Pit Viper |  |
| Protobothrops kaulbacki | Kaulback s Lance-headed Pit Viper |  |
| Protobothrops mangshanensis | Mangshan Pit Viper |  |
| Protobothrops maolanensis | Unspecified |  |
| Protobothrops mucrosquamatus | Brown-spotted Pit Viper |  |
| Protobothrops sieversorum | Three-horned Scaled Pit Viper |  |
| Protobothrops tokarensis | Tokara Habu |  |
| Protobothrops trungkhanhensis | Unspecified |  |
| Protobothrops xiangchengensis | Szechwan Pit Viper |  |
| Pseudocerastes fieldi | Field's Horned Viper |  |
| Pseudocerastes persicus | Persian Horned Viper |  |
| Pseudocerastes urarachnoides | Iran Viper |  |
| Sistrurus catenatus | Eastern Massasauga Rattlesnake |  |
| Sistrurus miliarius | Pygmy Rattlesnake |  |
| Sistrurus tergeminus | Western Massasauga Rattlesnake |  |
| Trimeresurus albolabris | White-lipped Tree Viper |  |
| Trimeresurus andalasensis | Unspecified |  |
| Trimeresurus andersonii | Anderson's Pit Viper |  |
| Trimeresurus barati | Barat Bamboo Pit Viper |  |
| Trimeresurus borneensis | Borneo Pit Viper |  |
| Trimeresurus brongersmai | Brongersma's Pit Viper |  |
| Trimeresurus buniana | Fairy Pit Viper |  |
| Trimeresurus cantori | Cantor's Pit Viper |  |
| Trimeresurus cardamomensis | Cardamom Mountains Green Pit Viper |  |
| Trimeresurus erythrurus | Bamboo Pit Viper |  |
| Trimeresurus fasciatus | Banded Pit Viper |  |
| Trimeresurus flavomaculatus | Philippine Pit Viper |  |
| Trimeresurus fucata | Siamese Peninsula Pit Viper |  |
| Trimeresurus gracilis | Kikuchi Habu |  |
| Trimeresurus gramineus | Common Bamboo Viper |  |
| Trimeresurus gumprechti | Gumprecht's Green Pit Viper |  |
| Trimeresurus gunaleni | Gunalen's Pit Viper |  |
| Trimeresurus hageni | Indonesian Pit Viper |  |
| Trimeresurus honsonensis | Hon Son Pit Viper |  |
| Trimeresurus insularis | White-lipped Island Pit Viper |  |
| Trimeresurus kanburiensis | Kanburi Pit Viper |  |
| Trimeresurus labialis | Island Pit Viper |  |
| Trimeresurus macrolepis | Large-scaled Pit Viper |  |
| Trimeresurus macrops | Kramer's Pit Viper |  |
| Trimeresurus malabaricus | Malabarian Pit Viper |  |
| Trimeresurus malcolmi | Malcolm's Pit Viper |  |
| Trimeresurus mcgregori | McGregor's Pit Viper |  |
| Trimeresurus medoensis | Green Bamboo Leaf Pit Viper |  |
| Trimeresurus mutabilis | Central Nicobar Pit Viper |  |
| Trimeresurus nebularis | Cameron Highlands Pit Viper |  |
| Trimeresurus phuketensis | Phuket Pit Viper |  |
| Trimeresurus popeiorum | Pope's Tree Viper |  |
| Trimeresurus puniceus | Ashy Pit Viper |  |
| Trimeresurus purpureomaculatus | Shore Pit Viper |  |
| Trimeresurus rubeus | ruby-eyed Green Pit Viper |  |
| Trimeresurus sabahi | Sabah Bamboo Pit Viper |  |
| Trimeresurus schultzei | Schultze's Pit Viper |  |
| Trimeresurus septentrionalis | Nepal Pit Viper |  |
| Trimeresurus sichuanensis | Sichuan Pit Viper |  |
| Trimeresurus stejnegeri | Chinese Bamboo Pit Viper |  |
| Trimeresurus strigatus | Horseshoe Pit Viper |  |
| Trimeresurus sumatranus | Sumatra Pit Viper |  |
| Trimeresurus tibetanus | Tibetan Pit Viper |  |
| Trimeresurus toba | Toba Pit Viper |  |
| Trimeresurus trigonocephalus | Ceylon Pit Viper |  |
| Trimeresurus truongsonensis | Quang Binh Pit Viper |  |
| Trimeresurus venustus | Beautiful Pit Viper |  |
| Trimeresurus vogeli | Vogel's Pit Viper |  |
| Trimeresurus wiroti | Wirot's Pit Viper |  |
| Trimeresurus yunnanensis | Yunnan Bamboo Pit Viper |  |
| Tropidolaemus huttoni | Hutton's Tree Viper |  |
| Tropidolaemus laticinctus | Broad-banded Temple Pit Viper |  |
| Tropidolaemus philippensis | South Philippine Temple Pit Viper |  |
| Tropidolaemus subannulatus | North Philippine Temple Pit Viper |  |
| Tropidolaemus wagleri | Wagler's Viper |  |
| Vipera altaica | Altai Viper |  |
| Vipera ammodytes | Nose-horned Viper |  |
| Vipera anatolica | Anatolian Meadow Viper |  |
| Vipera aspis | Asp Viper |  |
| Vipera barani | Turkish Viper |  |
| Vipera berus | Northern Cross Adder |  |
| Vipera darevskii | Darevsky's Viper |  |
| Vipera dinniki | Dinnik's Viper |  |
| Vipera eriwanensis | Armenian Mountain Steppe Viper |  |
| Vipera kaznakovi | Caucasus Viper |  |
| Vipera latastei | Lataste s Viper |  |
| Vipera lotievi | Lotiev's Viper |  |
| Vipera magnifica | Magnificent Viper |  |
| Vipera monticola | Atlas Mountain Viper |  |
| Vipera nikolskii | Nikolsky's Viper |  |
| Vipera olguni | Ardahan Mountain Viper |  |
| Vipera orlovi | Orlov's Viper |  |
| Vipera pontica | Black Sea Viper |  |
| Vipera renardi | Renard's Viper |  |
| Vipera seoanei | Portuguese Viper |  |
| Vipera shemakhensis | Alburzi Viper |  |
| Vipera transcaucasiana | Transcaucusian Viper |  |
| Vipera ursinii | Orsini's Viper |  |
| Vipera walser | Walser's Viper |  |
