My first mandible with teeth. Complete incisor with nice colors. I labeled it as Ondatra sp. since differences between zibethicus and cinnamonius teeth/mandibles are basically nonexistent. Molar pattern on Muskrat molars are very similar to Meadow Vole molars. However, Muskrats are much larger than meadow voles, so Meadow Vole teeth/mandibles will be much smaller than muskrat.   Here is a close up picture of the molar on this specimen:          

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