Potamophis striatula
Haldea striatula
eastern ground snake
marsh snake
adder
thunder snake
worm snake
Carphophis amoenus
coffee snake
Heterodon
ground snake
Sonora semiannulata
genus Heterodon
garter snake
grass snake
black mamba
russellophiid
pine woods snake
Natrix sipedon
common water snake
Drymarchon corais couperi
banded water snake
eastern indigo snake
Nerodia sipedon
heterodont
carpet snake
chicken snake
natricine
rock snake
homalopsid
leaf-nosed snake
sibynophiid
Drymarchon corais
striped whipsnake
gopher snake
sand snake
indigo snake
colubriform
Masticophis bilineatus
uropeltoid
black snake
Sonoran whipsnake
amphiesmal
pilot snake
colubrine
sand viper
queen snake
night snake
Thamnophis proximus
hornsnake
red-bellied snake
Storeria occipitamaculata
death adder
Western ribbon snake
pine snake
beadsnake
genus Phyllorhynchus
genus Storeria
alethinophidian
ringed snake
sea krait
Storeria
ring snake
Natrix natrix
Phyllorhynchus
xenodermatid
brown snake
natricid
erycine
elapoid
ladder snake
Thamnophis sirtalis
rubber boa
lyre snake
common garter snake
mole salamander
ungaliophiine
Arizona
colubroidean
dipsadine
rosy boa
colubroid
Ambystoma talpoideum
genus Arizona
Drymarchon
genus Cyamopsis
Cyamopsis
water adder
Big Bend patchnose snake
genus Drymarchon
scarlet snake
viperine
anomalepidid
ularburong
glossy snake
Arizona elegans
xenotyphlopid
snakeling