Potamophis
Typhlopidae
Notechis
milk adder
genus Potamophis
Lampropeltis triangulum
Arizona
Natrix
genus Notechis
genus Haldea
genus Natrix
hognose
checkered adder
amphiesmal
genus Arizona
striped whipsnake
thread snake
aglyph
ophiolatry
ophiomorphic
xenotyphlopid
hoop snake
viper
ringed snake
Natrix natrix
dipsadid
xenodermid
ring snake
hypo
ophicephalous
eastern indigo snake
cobra capella
xenopeltid
ophiomorphous
Tantilla
Masticophis
genus Masticophis
homalopsid
genus Tantilla
Hydrophidae
family Hydrophidae
lampropeltine
crotalic
Drymarchon corais couperi
herpet-
leptotyphlopid
padwal