Part 18

DAVIS, W. B. 1939. The Recent Mammals of Idaho. The Caxton Printers, Ltd., Caldwell, Idaho. Pp. 1-400, 33 figs. in text, 2 pls., April 5.

DURRANT, S. D. 1952. Mammals of Utah, taxonomy and distribution. Univ. Kansas Publ., Mus. Nat. Hist., 6:1-549, 91 figs. in text, 30 tables, August 10.

FINDLEY, J. S. 1953. Pleistocene Soricidae from San Josecito Cave, Nuevo Leon, Mexico. Univ. Kansas Publ., Mus. Nat. Hist., 5:633-639, December 1.

1955. Taxonomy and distribution of some American shrews. Univ. Kansas Publ., Mus. Nat. Hist., 7:613-618, June 10.

FITCH, H. S. 1940. A biogeographical study of the ordinoides artenkreis of garter snakes (genus Thamnophis). Univ. California Publ. Zool., 44:1-150, October 31.

GRINNELL, J. 1933. Review of the Recent mammal fauna of California. Univ. California Publ. Zool., 40:71-234, September 26.

GRINNELL, J., and A. H. MILLER. 1944. The distribution of the birds of California. Pacific Coast Avifauna, 27:1-608, 57 figs. in text, December 30.

HALL, E. R. 1938. Variation among insular mammals of Georgia Strait, British Columbia. Amer. Nat., 72:453-463.

1946. Mammals of Nevada. University of California Press, Berkeley and Los Angeles, pp. i-xi + 1-710, 11 pls., 485 figs. in text, July 1.

HAMILTON, W. J., JR. 1940. The biology of the smoky shrew (Sorex fumeus fumeus Miller). Zoologica, 25:473-492, 4 pls., 1 fig. in text, 2 tables.

HIBBARD, C. 1944. Stratigraphy and vertebrate paleontology of Pleistocene deposits of southwestern Kansas. Geol. Soc. America, Bull. 55:707-754, 3 pls., 20 figs. in text, June.

HOWELL, T. R. 1952. Natural history and differentiation in the yellow-bellied sapsucker. Condor, 54:237-282, September 22.

JACKSON, H. H. T. 1928. A taxonomic review of the American long-tailed shrews (genera Sorex and Microsorex). N. Amer. Fauna, 51:i-vi + 1-238, 13 pls., 24 figs. in text, July 24.

1947. A new shrew (genus Sorex) from Coahuila. Proc. Biol. Soc. Washington, 60:131-132, October 9.

KRUTZSCH, P. H. 1954. North American jumping mice (genus Zapus). Univ. Kansas Publ., Mus. Nat. Hist., 7:349-472, 47 figs. in text, 4 tables, April 21.

MACNAB, J. A., and J. C. DIRKS. 1941. The California red-backed mouse in the Oregon Coast Range. Jour. Mamm., 22:174-180, May 14.

MAYR, E. 1940. Speciation phenomena in birds. Amer. Nat., 74:249-278.

MERRIAM, C. H. 1895. Synopsis of the American shrews of the genus Sorex. in N. Amer. Fauna, 10:57-100, December 31.

1899. Results of a biological survey of Mt. Shasta, California. N. Amer. Fauna, 16:1-179, 46 figs. in text, 5 pls., October 28.

MURIE, A. 1933. The ecological relationship of two species of Peromyscus in the Glacier Park region, Montana. Occ. Pap. Mus. Zool., Univ. Michigan, 270:1-17, 2 figs., 3 tables, July 1.

PEARSON, O. P. 1945. Longevity of the short-tailed shrew. Amer. Midl. Nat., 34:531-546, 2 tables, 4 figs. in text, September.

PRUITT, W. O., JR. 1954. Aging in the masked shrew, Sorex cinereus cinereus Kerr. Jour. Mamm., 35:35-39, February 10.

RENSCH, B. 1933. Zoologische systematik und artbildungsproblem. Ver. deutsch. zool. Gesellschaft, 1933:19-83.

RIDGWAY, R. 1912. Color standards and color nomenclature. Washington, D. C., privately printed, i-iv + 1-44, 53 pls.

RUDD, R. L. 1953. Differentiation in shrews of the tidal marshes of the San Francisco Bay region. Summary of the dissertation for the degree of Doctor of Philosophy, University of California Graduate Division, 4 pages, unnumbered, June.

SIMPSON, G. G. 1945. The principles of classification and a classification of mammals. Bull. American Mus. Nat. Hist., 85:i-xvi + 1-350, October 5.

TICEHURST, CL. B. 1938. A systematic review of the genus Phylloscopus. British Mus., London, i-viii + 1-193, 8 maps, 2 pls., November 26.

VAN DEN BRINK, F. H. 1953. La musaraigne masquee, espece circum-boreale. Mammalia, 17:96-125, 1 map, June.