List of snakes of Connecticut

Connecticut is home to 15 species of snakes and only two are venomous. The Black racer (Coluber c. constrictor), Dekay's brownsnake (Storeria d. dekayi), Eastern ratsnake (Pantherophis obsoletus), Garternake (Thamnophis s. sirtalis), Hog-nosed snake (Heterodon platirhinos), milk snake (Lampropeltis t. triangulum), northern watersnake (Nerodia sipedon sipedon), redbelly snake (Storeria o. occipitomaculata), ribbonsnake (Thamnophis saurita), ring-necked snake (Diadophis punctatus edwardsii), smooth greensnake (Liochlorophis vernalis) and worm snake (Carphophis a. amoenus)) are non-venomous. The non-venomous Brahminy blind snake (Indotyphlops braminus) was introduced from Southeast Asia and has established a viable population in Connecticut.[1] The Copperhead (Agkistrodon contortrix mokasen) and Timber rattlesnake (Crotalus horridus) are venomous.[2] In the state of the Connecticut, the Timber rattlesnake is listed as endangered and Eastern ratsnake is regulated with both the Ribbonsnake and Hog-nosed snake as of special concern.[3]

Snakes
Scientific NameCommon name(s)ImageNotes
Coluber constrictor constrictor[3]Northern Black Racer[3]As listed
Agkistrodon contortrix mokasen[3]Northern Copperhead[3]As listedVenomous[3]
Storeria dekayi dekayi[3]Northern Brown Snake / Dekay's Brownsnake[3]As listed
Pantherophis alleghaniensis / Elaphe alleghaniensis[3]Eastern Ratsnake[3]As listed
Thamnophis sirtalis sirtalis[3]Eastern Garter Snake[3]As listed
Heterodon platirhinos[3]Eastern Hognose Snake[3]As listed
Lampropeltis triangulum triangulum[3]Eastern Milksnake[3]As listed
Nerodia sipedon sipedon[3]Northern Water snake[3]As listed
Storeria occipitomaculata occipitomaculata[3]Northern Redbelly Snake[3]As listed
Thamnophis saurita saurita[3]Eastern Ribbonsnake[3]As listed
Diadophis punctatus edwardsii[3]Northern Ringneck Snake[3]As listed
Opheodrys vernalis[3] / Liochlorophis vernalisSmooth Green snake[3]As listed
Crotalus horridus[3]Timber Rattlesnake / cane-brake rattlesnake[3]As listedVenomous[3]
Carphophis amoenus amoenus[3]Eastern Worm Snake[3]As listed
Indotyphlops braminus[4] Brahminy Blind Snake / Flowerpot Snake[5]

References
  1. "Snakes in Connecticut". USA Snakes. Retrieved 2020-10-23.
  2. "Snakes in Connecticut". Connecticut Department of Energy and Environmental Protection. Retrieved 25 April 2014.
  3. "Snakes in Connecticut - A Guide to Snake Identification" (PDF). Connecticut Department of Environmental Protection. 2006. Retrieved 25 April 2014.
  4. "Snakes in Connecticut". USA Snakes. Retrieved 2020-10-23.
  5. "Indotyphlops Braminus - Brahminy Blind Snake". USA Snakes. 2020-10-12. Retrieved 2020-10-23.
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