Gen. Azemiops (Add)Causinae (Add)Azemiops feae (Add)
Gen. Causus (Add)Crotalinae (Add)Causus bilineatus (Add)
Causus defilippii (Add)
Causus lichtensteinii (Add)
Causus maculatus (Add)
Causus resimus (Add)
Causus rhombeatus (Add)
Gen. Agkistrodon (Add)Viperinae (Add)Agkistrodon bilineatus (Add)Gen. Atropoides (Add)
Agkistrodon blomhoffi (Add)
Agkistrodon contortrix
Agkistrodon piscivorus
Agkistrodon taylori (Add)
Agkistrodon tsushimaensis (Add)Atropoides indomitus (Add)Gen. Bothriechis (Add)
Atropoides nummifer (Add)
Atropoides olmec (Add)
Atropoides picadoi (Add)Bothriechis auriferGen. Bothriopsis (Add)
Bothriechis bicolor (Add)
Bothriechis lateralis
Bothriechis marchi (Add)
Bothriechis nigroviridis
Bothriechis rowleyi (Add)
Bothriechis schlegelii
Bothriechis thalassinus (Add)Bothriopsis bilineata (Add)Gen. Bothrocophias (Add)
Bothriopsis medusa (Add)
Bothriopsis oligolepis (Add)
Bothriopsis peruviana (Add)
Bothriopsis pulchra (Add)
Bothriopsis punctata (Add)
Bothriopsis taeniataBothrocophias campbelli (Add)Gen. Bothrops
Bothrocophias hyoprora (Add)
Bothrocophias microphthalmus (Add)
Bothrocophias myersi (Add)Bothrops alcatraz (Add)Gen. Calloselasma (Add)
Bothrops alternatus
Bothrops ammodytoides (Add)
Bothrops andianus (Add)
Bothrops asper
Bothrops atrox
Bothrops barnetti (Add)
Bothrops brazili
Saint Lucia Lancehead, Bothrops caribbaeus (Add)
Bothrops colombianus (Add)
Bothrops colombiensis (Add)
Bothrops cotiara (Add)
Bothrops erythromelas (Add)
Bothrops fonsecai (Add)
Bothrops iglesiasi (Add)
Bothrops insularis
Bothrops itapetiningae (Add)
Bothrops jararaca
Bothrops jararacussu (Add)
Bothrops jonathani (Add)
Bothrops lanceolatus (Add)
Bothrops leucurus (Add)
Bothrops lojanus (Add)
Bothrops marajoensis (Add)
Bothrops marmoratus (Add)
Bothrops moojeni (Add)
Bothrops muriciensis (Add)
Bothrops neuwiedi (Add)
Bothrops pictus
Bothrops pirajai (Add)
Bothrops sanctaecrucis (Add)
Bothrops venezuelensis (Add)Calloselasma, Calloselasma rhodostomaGen. Cerrophidion (Add)Cerrophidion barbouri (Add)Gen. Crotalus
Cerrophidion godmani
Cerrophidion petlalcalensis (Add)
Cerrophidion tzotzilorum (Add)Crotalus adamanteusGen. Cryptelytrops (Add)
Crotalus aquilus (Add)
Crotalus atrox
Crotalus basiliscus
Crotalus catalinensis
Crotalus cerastes (Add)
Crotalus culminatus (Add)
Crotalus durissus (Add)
Crotalus enyo (Add)
Crotalus ericsmithi (Add)
Crotalus exsul (Add)
Timber Rattle Snake, Crotalus horridus
Crotalus intermedius (Add)
Crotalus lannomi (Add)
Crotalus lepidus
Crotalus mitchelli
Crotalus molossus (Add)
Crotalus oreganus
Crotalus polystictus (Add)
Crotalus pricei (Add)
Crotalus pusillus (Add)
Crotalus ruber (Add)
Crotalus scutulatus
Crotalus simus (Add)
Crotalus stejnegeri (Add)
Crotalus tancitarensis (Add)
Crotalus tigris (Add)
Crotalus tortugensis (Add)
Crotalus totonacus (Add)
Crotalus transversus (Add)
Crotalus triseriatus (Add)
Crotalus tzabcan (Add)
Crotalus unicolor (Add)
Crotalus vegrandis (Add)
Prairie rattlesnake, Crotalus viridis
Crotalus willardi (Add)Cryptelytrops cardamomensisGen. Deinagkistrodon (Add)
Cryptelytrops rubeus (Add)Deinagkistrodon acutusGen. Gloydius (Add)Gloydius blomhoffi (Add)Gen. Hypnale (Add)
Gloydius halys
Gloydius himalayanus (Add)
Gloydius intermedius (Add)
Gloydius monticola (Add)
Gloydius saxatilis (Add)
Gloydius shedaoensis (Add)
Gloydius strauchi (Add)
Gloydius tsushimaensis (Add)
Gloydius ussuriensis (Add)Hypnale hypnale (Add)Gen. Lachesis (Add)
Hypnale nepa (Add)
Hypnale walli (Add)Lachesis melanocephala (Add)Gen. Ophryacus (Add)
Lachesis muta (Add)
Lachesis stenophyrs (Add)Ophryacus melanurus (Add)Gen. Ovophis (Add)
Ophryacus undulatus (Add)Ovophis chaseni (Add)Gen. Porthidium
Ovophis monticola (Add)
Ovophis okinavensis (Add)
Ovophis monticola, Ovophis tonkinensis (Add)Porthidium dunni (Add)Gen. Protobothrops (Add)
Porthidium hespere (Add)
Porthidium lansbergii (Add)
Porthidium nasutum
Porthidium ophryomegas (Add)
Porthidium porrasi (Add)
Porthidium volcanicum (Add)
Porthidium yucatanicum (Add)Protobothrops cornutus (Add)Gen. Rhinocerophis (Add)
Protobothrops elegans (Add)
Protobothrops flavoviridis (Add)
Protobothrops jerdonii (Add)
Protobothrops kaulbacki (Add)
Protobothrops mucrosquamatus (Add)
Protobothrops tokarensis (Add)
Protobothrops trungkhanhensis (Add)
Protobothrops xiangchengensis (Add)Rhinocerophis jonathani (Add)Gen. Sistrurus (Add)Sistrurus catenatus (Add)Gen. Triceratolepidophis (Add)
Sistrurus miliarius (Add)
Sistrurus ravus (Add)Triceratolepidophis, Triceratolepidophis sieversorum (Add)Gen. Trimeresurus (Add)Trimeresurus albolabris (Add)Gen. Tropidolaemus (Add)
Trimeresurus andalasensis (Add)
Trimeresurus andersonii (Add)
Trimeresurus borneensis (Add)
Trimeresurus brongersmai (Add)
Trimeresurus cantori (Add)
Trimeresurus elegans (Add)
Trimeresurus erythrurus (Add)
Trimeresurus fasciatus (Add)
Trimeresurus flavomaculatus (Add)
Trimeresurus flavoviridis (Add)
Trimeresurus gracilis (Add)
Trimeresurus gramineus (Add)
Trimeresurus gumprechti (Add)
Trimeresurus hageni (Add)
Trimeresurus insularis (Add)
Trimeresurus kanburiensis (Add)
Trimeresurus labialis (Add)
Trimeresurus macrolepis (Add)
Trimeresurus macrops (Add)
Trimeresurus malabaricus (Add)
Trimeresurus malcolmi (Add)
Trimeresurus medoensis (Add)
Trimeresurus nebularis (Add)
Trimeresurus okinavensis (Add)
Trimeresurus puniceus (Add)
Trimeresurus purpureomaculatus (Add)
Trimeresurus schultzei (Add)
Trimeresurus septentrionalis (Add)
Trimeresurus stejnegeri (Add)
Trimeresurus strigatus (Add)
Trimeresurus sumatranus (Add)
Trimeresurus tibetanus (Add)
Trimeresurus tokarensis (Add)
Trimeresurus trigonocephalus (Add)
Trimeresurus truongsonensis (Add)
Trimeresurus venustus (Add)
Trimeresurus vogeli (Add)
Trimeresurus yunnanensis (Add)Tropidolaemus huttoni (Add)Gen. Zhaoermia (Add)
Tropidolaemus wagleri (Add)Zhaoermia mangshanensis (Add)
Gen. Adenorhinos (Add)Adenorhinos, Adenorhinos barbouri (Add)Gen. Atheris (Add)Atheris acuminata (Add)Gen. Bitis (Add)
Atheris broadleyi (Add)
Atheris ceratophora
Atheris chlorechis
Atheris desaixi (Add)
Atheris hirsuta (Add)
Atheris hispida (Add)
Atheris katangensis (Add)
Atheris mabuensis (Add)
Atheris nitschei
Atheris rungweensis (Add)
Atheris squamigera
Atheris squamigera, Atheris subocularis (Add)Bitis albanica (Add)Gen. Cerastes (Add)
Puff Adder, Bitis arietans (Add)
Bitis armata (Add)
Bitis atropos (Add)
Bitis caudalis (Add)
Bitis cornuta (Add)
Bitis gabonica
Bitis heraldica (Add)
Bitis inornata (Add)
Bitis nasicornis (Add)
Bitis parviocula (Add)
Bitis peringueyi (Add)
Bitis rhinoceros (Add)
Bitis rubida (Add)
Bitis schneideri (Add)
Bitis worthingtoni (Add)
Bitis xeropaga (Add)Cerastes boehmei (Add)Gen. Daboia (Add)
Cerastes cerastes
Cerastes gasperettii (Add)
Cerastes vipera (Add)Indian Russell's viper, Daboia russeliiGen. Echis (Add)
Daboia siamensis (Add)Saw-scaled Viper, Echis carinatus (Add)Gen. Eristicophis (Add)
Echis coloratus (Add)
Echis hughesi (Add)
Echis jogeri (Add)
Echis leucogaster (Add)
Echis megalocephalus (Add)
Echis ocellatus (Add)
Echis omanensis (Add)
Echis pyramidum (Add)Eristicophis macmahoni (Add)Gen. Macrovipera (Add)Macrovipera deserti (Add)Gen. Montatheris (Add)
Blunt-nosed viper, Macrovipera lebetina (Add)
Macrovipera mauritanica (Add)
Macrovipera schweizeri (Add)Montatheris hindii (Add)Gen. Proatheris (Add)Proatheris, Proatheris superciliarisGen. Pseudocerastes (Add)Pseudocerastes fieldi (Add)Gen. Vipera (Add)
Pseudocerastes persicus (Add)
Pseudocerastes urarachnoides (Add)Vipera albizona (Add)
Vipera ammodytes
Vipera aspis
Vipera barani (Add)
Common European adder, Vipera berus
Vipera bornmuelleri (Add)
Vipera darevskii (Add)
Vipera dinniki (Add)
Vipera eriwanensis (Add)
Vipera kaznakovi (Add)
Lataste's viper, Vipera latastei (Add)
Vipera latifii (Add)
Vipera lotievi (Add)
Vipera magnifica (Add)
Vipera monticola (Add)
Vipera nikolskii (Add)
Vipera orlovi (Add)
Vipera palaestinae (Add)
Vipera pontica (Add)
Vipera raddei (Add)
Vipera renardi (Add)
Daboia, Vipera russelli (Add)
Vipera sachalinensis (Add)
Vipera seoanei (Add)
Vipera transcaucasiana (Add)
Vipera ursinii (Add)
Vipera wagneri (Add)
Vipera xanthina (Add)