water moccasin
Agkistrodon piscivorus
cottonmouth
cottonmouth moccasin
hognose
genus Nerodia
Masticophis bilineatus
Nerodia
Sonoran whipsnake
Anhinga anhinga
water turkey
falx
viper
eel-blenny
red-bellied snake
Storeria occipitamaculata
Acanthophis antarcticus
death adder
water adder
boine
snakebite
river jack
Oxyuranus scutellatus
elapid snake
venomoid
taipan
elapid
Big Bend patchnose snake
water snake
black snake
three-step snake
river otter
aglyph
hornsman
snakebit
mapepire
colubrine
anguine
hagworm
red rat snake
hoop snake
corn snake
adder
serpent
Elaphe guttata
Elaphe
genus Elaphe
ophiolatrous
fer-de-lance
chicken snake
genus Phyllorhynchus
Phyllorhynchus
Bothrops atrops
leaf-nosed snake
Crotalus atrox
Natrix sipedon
suborder Serpentes
copperhead
Western diamondback
Nerodia sipedon
common water snake
Agkistrodon contortrix
Serpentes
suborder Ophidia
banded water snake
western diamondback rattlesnake
Western diamondback rattlesnake
Ophidia
Denisonia superba
Arizona
genus Arizona
sss
habu
ophicephalous
Notechis scutatus
tiger snake
colubriform
beadsnake
slough
booid
Tantilla
sand snake
genus Tantilla
ophiomorphous
reticulated whipsnake
rattlesnake
ringhals
hypo
Hemachatus haemachatus
pine woods snake