LITERATURE CITED

Specimens examined, 2: Los Angeles County: Evey Canyon, 2100 ft., 1 (PC); Palmer Canyon, 1900 ft., 1 (PC).

Family BOVIDAE

Ovis canadensis nelsoniMerriam

Bighorn

Bands of bighorn sheep occur on some of the higher and more rugged peaks of the San Gabriel Mountains. Although I never sighted the animals themselves, I have seen abundant signs of their presence on the ridge sloping west from Telegraph Peak at about 9000 feet elevation. Several bands reportedly range in the head of San Antonio Canyon, and to the south on Telegraph, Ontario, and Cucamonga peaks. The sheep usually stay in the higher sections of the range, generally above about 7000 feet elevation. According to district Ranger A. Lewis some bighorns summer in the lower East Fork of San Gabriel Canyon. The subspecific status of the bighorns in the San Gabriel Mountains has not been definitely determined. Following Grinnell (1933:211) they are here referred tonelsoni. If the band can be preserved without introduction of "alien" stock, the United States Forest Service and the California Fish and Game Commission will have registered an achievement that will be applauded by all persons who are interested in American wildlife.

Benson, S. B.

1930. Two new pocket mice, genusPerognathus, from the Californias. Univ. California Publ. Zool., 32:449-454.1949. The bat nameMyotis ruddiSilliman and von Bloeker, a synonym ofMyotis volans longicrus(True). Jour. Mamm., 30:48-50.

1930. Two new pocket mice, genusPerognathus, from the Californias. Univ. California Publ. Zool., 32:449-454.

1949. The bat nameMyotis ruddiSilliman and von Bloeker, a synonym ofMyotis volans longicrus(True). Jour. Mamm., 30:48-50.

Borell, A. E.

1937. A new method of collecting bats. Jour. Mamm., 18:478-480.

Burghduff, A. E.

1935. Black bears released in southern California. California Fish and Game, 21:83-84.

Burt, W. H.

1932. The systematic status and geographic range of the San Gabriel pocket gopher (Thomomys bottae neglectusBailey). Jour. Mamm., 13:369-370.

Cowan, I. Mc.

1933. The mule deer of southern California and northern Lower California as a recognizable race. Jour. Mamm., 14:326-327.

Cronemiller, F. P., andBartholomew, P. S.

1950. The California mule deer in chaparral forests. California Fish and Game, 36:343-365, 7 figs. in text.

Errington, P. L.

1937. What is the meaning of predation? Smithsonian Inst., Ann. Rept., for 1936:243-252.

Grinnell, H. W.

1918. A synopsis of the bats of California. Univ. California Publ. Zool., 17:223-404, pls. 14-24, 24 figs. in text.

Grinnell, J.

1908. The biota of the San Bernardino Mountains. Univ. California Publ. Zool., 5:1-170, 24 pls.1933. Review of the Recent mammal fauna of California. Univ. California Publ. Zool., 40:71-234.

1908. The biota of the San Bernardino Mountains. Univ. California Publ. Zool., 5:1-170, 24 pls.

1933. Review of the Recent mammal fauna of California. Univ. California Publ. Zool., 40:71-234.

Grinnell, J.,Dixon, J., andLinsdale, J. M.

1937. Fur-bearing mammals of California.... Univ. California Press, 2 vols., xii + 375 pp., pls. 1-7, figs. 1-138, xiv + 377-777 pp., pls. 8-13, figs. 139-345.

Grinnell, J., andSwarth, H. S.

1913. An account of the birds and mammals of the San Jacinto Area of southern California with remarks upon the behavior of geographic races on the margins of their habitats. Univ. California Publ. Zool., 10:197-406, pls. 6-10, 3 figs. in text.

Hall, E. R.

1926. Systematic notes on the subspecies ofBassariscus astutuswith description of one new form from California. Univ. California Publ. Zool., 30:39-50, pls. 2 and 3.1946. Mammals of Nevada. Univ. California Press, Berkeley, xi + 710, frontispiece, colored, 11 pls., 485 figs. in text, unnumbered silhouettes.

1926. Systematic notes on the subspecies ofBassariscus astutuswith description of one new form from California. Univ. California Publ. Zool., 30:39-50, pls. 2 and 3.

1946. Mammals of Nevada. Univ. California Press, Berkeley, xi + 710, frontispiece, colored, 11 pls., 485 figs. in text, unnumbered silhouettes.

Hooper, E. T.

1938. Geographical variation in woodrats of the speciesNeotoma fuscipes. Univ. California Publ. Zool., 42:213-246, pls. 7-8, 2 figs. in text.

Jackson, H. H. T.

1928. A taxonomic review of the American long-tailed shrews. N. Amer. Fauna, 51:1-238, pls. 1-13, 24 figs. in text.

Merriam, C. H.

1898. Life zones and crop zones of the United States. U. S. Dept. Agr. Bur. Biol. Surv., Bull. 10:1-79, 1 map.

Munz, P. A., andKeck, D. D.

1949. California plant communities. Al Aliso, 2:87-105, 4 pls.

Oakeshott, G. B.

1937. Geology and mineral deposits of the western San Gabriel Mountains, Los Angeles County. California Jour. Mines and Geol., 33:215-249, 1 pl., 7 figs. in text.

Pequegnat, W. E.

1951. The biota of the Santa Ana Mountains. Jour. Entomol. and Zool., 42:1-84.

Sanborn, C. C.

1932. The bats of the genusEumops. Jour. Mamm., 13:347-357.

Vaughan, T. A.

1953. Unusual concentration of hoary bats. Jour. Mamm., 34:256.

von Bloeker, J. C.

1932. Extensions of the ranges of pocket gophers in southern California. Jour. Mamm., 13:76-77.

Willett, G.

1944. Mammals of Los Angeles County. Los Angeles County Mus. Sci. Ser., no. 9, Zool. no. 4, 26 pls.

Transmitted July 20, 1954.

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