Northern Water Snake
This snake was 3-4 feet long. Its dorsum was strongly keeled and was a dark grayish color. It had a pattern of reddish brown bands on its venter.
This snake is currently secure in Connecticut, but many are killed each year as they are mistaken for venomous snakes.
The northern water snake is a species of large, nonvenomous, common snake in the family Colubridae. The species is native to North America.