Nova Scotia Snakes

Some details about Northern Ribbon Snakes in Nova Scotia

Thamnophis sauritus sauritus (Linnaeus: Bleakney 1951)

We would like to know lots more about the Ribbon Snake population of Nova Scotia. If you see one, please let the Museum of Natural History know. Try hard to positively identify is as a Ribbon Snake, not Garter Snake.

The stripes are brownish-yellow down the middle of the back and greenish-yellow on the lower sides. There is a dark caramel-brown stripe below the light stripe down both sides of the abdomen and the underside of the tail. When you see this snake, the stripes are strong and clear. A Garter Snake just seems mottled, any striping is not so bold.

There are approximately 150 scales along the bottom of the snake.

How big do they get? Here are some measurements:

Adult males (6 measured) 28.5 - 38.9 cm
Adult females (8 measured) 29 - 50 cm

How many babies? Based on five cases, from 6 to 10 per litter.

Ribbon Snakes are found from southern Maine west to Vermont, southwest through northern New York State to northern Indiana and southeastern Illinois. The range extends into southern Ontario. The Nova Scotia population in Queens and Lunenburg counties is cut off - "disjunct" - from all other populations.

Their main habitat requirement seems to be a quiet lake or pond edge with lots of aquatic plants for shelter and hunting grounds.

The earliest record for seeing one emerging from hibernation is April 23, in 1979, in a roadside gravel pit at Colpton, Lunenburg County.

The latest date in the year for seeing one is October 2, in 1966, at Ponhook Lake, Queens County.

They are active during the day, but compared to Garter Snakes are very nervous when approached. They hide under water, among the bog moss or pond plants, and are tough to find.


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