dipsadine
dipsadid
natricine
natricid
crotaline
Heterodon
genus Heterodon
amphiesmal
atractaspidine
booid
thirst snake
acrochordoid
ophidian
macrostomatan
calamariid
colubriform
colubrine
cyclocorid
henophidian
russellophiid
ungaliophiine
green snake
acrochord
black snake
colubroidean
colubroid
coffee snake
atractaspidid
sand viper
striped whipsnake
elapoid
genus Sonora
Sonora
marsh snake
pine snake
aparallactine
large-headed water snake
xenodontine
Drymarchon corais couperi
eastern indigo snake
pythonoid
Sonoran whipsnake
lampropeltine
Amphiumidae
family Amphiumidae
Masticophis bilineatus
solenoglyph
diplodactylin
dipodine
dipodoid