The Mexican volcano mouse (Neotomodon alstoni) is a species of rodent in the family Cricetidae endemic to high elevation areas of the Trans-Mexican Volcanic Belt.

[4] The Volcano mouse is seen to reside restrictively to higher elevation or boreal habitats of the trans-volcanic belt of Central Mexico.

It has a pair of broad, naked ears while its fur is rather soft with grayish to fulvous brown color dorsally and whitish ventrally.

[5] With relatively large eyes and ears, bi-colored body and tail (dark dorsally and white ventrally), and a tail slightly shorter than the body length, the Mexican volcano mouse appears very similar to a deer mouse, but it is diagnosed by several skull characters including the number and extent of palatal ridges and molar characteristics.

Male with high testosterone levels develop a paternal care which increases better chances of survival and growth of its offspring.