Smithsonian National Museum of Natural History, North American Mammals
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Microtus oaxacensis

Tarabundí Vole

Order: Rodentia
Family: Cricetidae

 

Conservation Status: Endangered.


Only two Microtus species, the Tarabundi Vole and the Guatemalan Vole, have two mammary glands on the abdomen and four on the chest. With six nipples, a female could theoretically nurse six babies at a time. However, there is evidence that Tarabundi Voles give birth to just one offspring at a time. These medium-large, blackish-brown rodents are found only on a relatively isolated mountain range in Oaxaca, Mexico, in dense forests at elevations of 1,600 to 2,500 meters. Their diet in the wild has not been documented. Captive voles, when offered a variety of wild plant matter, ate grass but preferred the stems and leaves of wild strawberry plants.

Length:
Range: Head and Body: - 3.3-4.1 times as long as tail; Total Length: 143-167 mm (males); 155-170 mm (females); Tail: 31-40 mm (males); 34-39 mm (females)

Weight:
Range: 31-46 g males; 27-38 g females

References:

Goodwin, G.G., 1966. American Museum Novitates, 2243:1.

Links:

Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Microtus oaxacensis