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Pacific Pocket Mouse Perognathus longimembris pacificus


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Pacific Pocket Mouse
© U. S. Fish and Wildlife Service

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Family: Heteromyidae, Pocket Mice and Kangaroo Rats view all from this family

Description Soft-furred and tiny. Pale buff above, underparts whitish. Tail darker above. 2 small white patches at base of ears. Soles of hind feet furred. L (from nose to tip of tail) 4 1/4" (110 mm); T 2 1/8" (53 mm); HF 5/8" (15 mm); Wt 1/4 oz (7 g).

Endangered Status The Pacific Pocket Mouse, a subspecies of the Little Pocket Mouse, is on the U.S. Endangered Species List. It is classified as endangered in California. This coastal-dweller plummeted in number as residential development overtook its habitat. For about 20 years it was assumed to be extinct, but a single population of fewer than 40 mice was discovered in 1993. These mice are preyed upon by feral and pet cats, and their habitat is threatened with development. This population's only hope for survival is the removal of cats from its vicinity and the preservation of its habitat or its relocation to a new habitat. It is not known whether other populations of this mouse still exist.

Habitat Sandy coastal soils.

Range Southern coastal California.