List of snakes of Connecticut

Connecticut is home to 14 species of snakes and only two are venomous. In the state of the Connecticut, the timber rattlesnake is listed as endangered and the gray rat snake, eastern ribbonsnake and eastern hog-nosed snake are listed as species of special concern.^[1]

Scientific name	Common name(s)	Notes
Coluber constrictor constrictor^[1]	Northern black racer^[1]
Agkistrodon contortrix mokasen^[1]	Northern copperhead^[1]	Venomous^[1]
Storeria dekayi dekayi^[1]	Northern brown snake / Dekay's brown snake^[1]
Pantherophis alleghaniensis^[1]	Gray rat snake^[1]
Thamnophis sirtalis sirtalis^[1]	Eastern Garter Snake^[1]
Heterodon platirhinos^[1]	Eastern hognose Snake^[1]
Lampropeltis triangulum triangulum^[1]	Eastern milksnake^[1]
Nerodia sipedon sipedon^[1]	Northern water snake^[1]
Storeria occipitomaculata occipitomaculata^[1]	Northern redbelly Snake^[1]
Thamnophis saurita saurita^[1]	Eastern ribbonsnake^[1]
Diadophis punctatus edwardsii^[1]	Northern ringneck Snake^[1]
Opheodrys vernalis^[1]	Smooth green snake^[1]
Crotalus horridus^[1]	Timber rattlesnake / canebrake rattlesnake^[1]	Venomous^[1]
Carphophis amoenus amoenus^[1]	Eastern worm snake^[1]

References