Perognathus longimembris pacificus Mearns, 1898:299

Pacific pocket mouse



Taxonomy & Nomenclature

Synonym/s: Perognathus pacificus Mearns, 1898:299; Perognathus longimembris cantwelli (according to Huey, 1939)


Conservation Status

Rediscovered in 1993



shore of Pacific Ocean, San Diego County, California, USA


Biology & Ecology




Type Locality: "Mexican boundary monument No. 258, shore of Pacific Ocean, San Diego Co., California" (Williams, 1986:24).






Original scientific description:

Mearns, E. A. (1898). Descriptions of three new forms of pocket mice from the Mexican border of the United States. Bull. Amer. Mus. Nat. Hist. 10: 299-320.


Other references:

Bailey, V. (1939). The solitary lives of two little pocket mice. J. Mamm. 20: 325-328.

Godfrey, Sarah. (2018). Spatial Distribution of the Endangered Pacific Pocket Mouse (Perognathus longimembrus ssp. pacificus) WithinCoastal Sage Scrub Habitat at Dana Point Headlands Conservation Area. Thesis, University of Southern California. xi + 79 pp.

Grinnell, J. (1933). Review of the Recent mammal fauna of California. Univ. California Publ. Zool.,
40: 71-284.

Huey, L. M. (1939). The silky pocket mice of southern California and northern Lower California,
Mexico, with the description of a new race. Trans. San Diego Sac. Nat. Hist. 11: 47-54.

M'Closkey, R.T. 1972. Temporal Changes in populations and species diversity in a California rodent community. J. Mamm. 53: 657-676.

Meserve, P. L. (1976). Food relationships of a rodent fauna in a California coastal sage community. J. Mamm. 57: 300-319.

von Bloeker, J.C., Jr. 1930. Extension of range of Perognathus pacificus. J. Mamm., 11: 431-432.

von Bloeker, J.C., Jr. 1931. Perognathus pacificus from the type locality. J. Mamm., 12:369-372.

von Bloeker, J. C., Jr. (1932). [P. pacificus recombined as P. l. pacificus]. Proc. Biol. Soc. Washington, 45:128.

Williams, Daniel F. (1986). Mammalian Species of Special Concern in California. Prepared for the state of California, the Resources Agency, Department of Fish and Game, Sacramento, CA 95814. vi + 100 pp.


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