Agkistrodon contortrix
copperhead
Bothrops atrops
fer-de-lance
adder
western diamondback rattlesnake
pilot snake
leaf-nosed snake
death adder
western rat snake
Storeria occipitamaculata
Sonoran whipsnake
black snake
red-bellied snake
Masticophis bilineatus
bushmaster
asp
Carphophis amoenus
genus Aspis
thunder snake
chicken snake
worm snake
grass snake
genus Cerastes
Aspis
garter snake
night adder
cottonmouth moccasin
Agkistrodon piscivorus
cottonmouth
viperid
water moccasin
sand viper
Bitis gabonica
Gaboon
family Crotalidae
gaboon viper
Crotalidae
genus Opheodrys
ground snake
Opheodrys
common viper
Vipera berus
Sonora semiannulata
corn snake
red rat snake
horned snake
puff adder
river jack
Bitis arietans