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Onychomys leucogaster

Northern Grasshopper Mouse

Order: Rodentia
Family: Cricetidae

Image of Onychomys leucogaster
Onychomys leucogaster - gray (left) and cinnamon (right) variations
Click to enlarge. (62 kb)

Conservation Status: Least Concern.


Northern Grasshopper Mice are highly predatory, and their skulls and teeth resemble those of flesh-eating carnivores such as cats and dogs. Their forelimbs, equipped with elongated fingers and claws, have developed great dexterity, so they are able to manipulate captured prey. These Mice have a complex social system, using howling vocalizations to broadcast information on sex, identity, body size, and location. Grasshopper Mice prey primarily on grasshoppers, crickets, and beetles, yet they incorporate some seeds into their diet, presumably a dietary preference retained from a seed-eating ancestry.

Sexual Dimorphism:
None

Length:
Range: 119-190 mm

Weight:
Range: 26-49 g

References:

Wied, Maximilian, Prinz zu., 1841.  Reise in das innere Nord-America in den jahren 1832 bis 1834, p. 99.  J. Holscher, Coblenz, xxiv + 687 pp.

Links:

Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Onychomys leucogaster

Image of Onychomys leucogaster
Click to enlarge. (109kb)