pilot snake
adder
death adder
copperhead
red oak
red-eye
cottonmouth
Agkistrodon contortrix
black snake
western diamondback rattlesnake
sand viper
Bothrops atrops
fer-de-lance
thunder snake
water moccasin
asp
Boettger's two-headed snake
viperid
bushmaster
moccasin
jerdonitin
hornsman
crotoxin
nigroviriditoxin
horned viper
adamalysin
Ancistrodon
Gaboon
pit adder
genus Ancistrodon
snake venom
carpet viper
Agkistrodon
genus Agkistrodon
Cerastes cornutus
cerastes
horned asp
cobra
Crotalidae
family Crotalidae
metalloserrulase
Acanthophis antarcticus
Oxyuranus scutellatus
western rat snake
coral snake
taipan
viper
lebectin
Nikolsky's viper
coachwhip
Old World coral snake
contortrostatin
rhodocytin
gaboon viper
eastern ratsnake
Bitis gabonica
saxatilin
puff adder
convulxin
river jack
Bitis arietans
viperess
cobratoxin
coagulotoxin
Mexican west coast rattlesnake
temple viper
chicken snake
venomoid
shore pit viper
mamushi
scarlet snake
night adder
rainbow boa
genus Opheodrys
reprolysin
lyre snake
ticpolonga
Opheodrys
jararacussin
leaf-nosed snake
ancrod
rock scorpion
Tricholoma pardinum
gwarda
sarafotoxin
viperling
viperine
Carphophis amoenus