Perognathus alticolus alticolus Rhoads, 1894:412

San Bernardino white-eared kangaroo rat, San Bernardino white-eared pocket mouse



Taxonomy & Nomenclature

Synonym/s: Perognathus alticolus Rhoads, 1894:412; Perognathus alticola Rhoads, 1894:412 (used by Osgood, 1900:39); Perognathus alticola alticola Rhoads, 1894:412 [orth. error]


Conservation Status


Last record: 1934

IUCN RedList status: "possibly extinct"



San Bernardino Mountains, San Bernardino County, California, USA


Biology & Ecology




Type Locality: "Squirrel Inn, 5500 ft near Little Bear Valley, San Bernardino Mountains, San Bernardino Co., California" (Williams, 1986).






Original scientific description:

Rhoads, S. N. (1894 "1893"). Descriptions of new species of North American mammals with remarks on species of the genus Perognathus. Proceedings of the Academy of Natural Sciences of Philadelphia 1893: 404-412.


Other references:

Freudenthal, M. and Martín-Suárez, E. (2013). Estimating body mass of fossil rodents. Scripta Geologica 145: 1-130. [0.016-0.024 kg estimate]

Grinnell, J. (1908). The biota of the San Bernardino Mountains. Univ. Calif. Publ. Zool. 5: 1-170.

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

Ingles, L. G. (1965). Mammals of the Pacific states. Stanford Univ. Press, Stanford, California, 506 pp.

Jones, J. Knox Jnr., Carter, Dilford C., Genoways, Hugh H., Hoffmann, Robert S. and Rice, Dale W. (1986). Revised Checklist of North American Mammals North of Mexico, 1986. Occasional Papers of the Museum of Texas Tech University 107: 1-22.

Linzey, A. V. and NatureServe (Hammerson, G.). (2008). Perognathus alticolus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 07 April 2013.

Osgood. (1900). [first discussion as P. alticola]. N. Amer. Fauna, 18:39. ["amended the spelling without comment" (Williams, 1986:40)]

Stephens, F. (1906). California mammals. West Coast Publ. Co., San Diego, 351 pp.

Sulentich, J. M. (1983). The systematics and evolution of the Perognathus parvus species group in southern California (Rodentia: Heteromyidae). UnPubl. M.S. thesis, California State Univ., Long Beach, 97 pp. ["searched extensively for White-eared Pocket Mice, starting in June of 1979 and using pitfalls and livetraps" (Williams, 1986:39)]

Williams, Daniel F. (1979). Checklist of California mammals. Ann. Carnegie Mus. 48: 425-433.

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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