Upper shell has a ridge running down the center and has a serrated rear margin. Shell, head and limbs are adorned with a series of yellow lines. The upper shell ranges in colour from green to brown, and skin colour is typically green.
Size: 9-16 cm for males, 18-27 cm for females
(Please note — these photos are unverified images submitted by members of the CWF Photo Club.)
Southern Ontario and southern Québec
Habitat: These turtles prefer lakes and large rivers with slow moving currents, an abundance of aquatic vegetation, and muddy bottoms.
Diet: Map turtles are omnivores (eating plants and animals). Females have large strong jaws and eat mostly molluscs as well as insects and crayfish. Males are smaller in size and feed off of small molluscs and insects.
Special ConcernThreats and What You Can Do:
The most common threats to the northern map turtle include habitat loss and degradation due to shoreline development and declining water quality conditions. Other threats such as the sread of invasive species such as Zebra Mussels can also have an effect on these turtles.
Notes: Named for the web of lines covering its shell, head and limbs, the Northern Map Turtle is one of only two freshwater turtle species in Canada where males and females are a different size. Females can be up to twice as large as the males.