Ondatra zibethicus (common muskrat)
| Class | Mammalia |
| Order | Rodentia |
| Family | Cricetidae |
| Genus | Ondatra |
| Species | Ondatra zibethicus |
| Common | common muskrat |
| Diet | herbivore |
| Habitat | semi-aquatic; marshes and riparian areas. Builds domed houses of sticks or reeds. |
| Description | Subfamily: Arvicolinae Tail hairless and vertically flattened (unlike nutria which have a round tail). Hind foot partially webbed (nutria have fully webbed hind feet). Smaller than beaver or nutria. Total length ~55 cm long, tail ~25 cm. |
| Skull Characteristics | Length ~6 cm. Largest North American rodent with true prismatic teeth. |
| Notes | Links to more species information: |