Smithsonian National Museum of Natural History, North American Mammals
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Megadontomys thomasi

Thomas' Big-toothed Deermouse

Order: Rodentia
Family: Cricetidae


Conservation Status: Endangered.

Thomas’ Big-toothed Deermice live even higher in mountain forests than the very similar Megadontomys nelsoni. All big-toothed deermice are ground-dwellers. Pregnant females have been found carrying 2 or 3 embryos, but there is very little information about reproduction.

Also known as:
Thomas’ Deermouse

Range: Total Length: 300-351 mm; Tail: 150-185 mm

Range: 61-113 g


Merriam, C.H., 1898. Proceedings of the Biological Society of Washington, 12:116.


Mammal Species of the World

Distribution of Megadontomys thomasi