1912. Color standards and color nomenclature. Published by the author, Washington, D. C., iii + 43 pp., 53 pls.

RINKER, G. C.

1954. The comparative myology of the mammalian genera _Sigmodon_, _Oryzomys_, _Neotoma_, and _Peromyscus_ (Cricetinae), with remarks on their intergeneric relationships. Miscl. Publ. Mus. Zool., Univ. Michigan, 83:1-124, 18 figs., 2 tables, June 4.

RUSSELL, R. J., JR.

1952. A new subspecies of pygmy mouse, _Baiomys musculus_, from Morelos, Mexico. Proc. Biol. Soc. Washington, 65:21-22, January 29.

SEARS, P. B.

1955. Palynology in southern North America, Part 4: Pleistocene Climate in Mexico. Bull. Geol. Soc. America, 66:521-530, 6 figs., 1 pl., 1 table, May.

SIMPSON, G. G.

1945. The principles of cla.s.sification and a cla.s.sification of mammals.

Bull. Amer. Mus. Nat. Hist., 85:xvi + 350, October 5.

1950. History of the fauna of Latin America. Amer. Sci., 38(3):361-389, 10 figs.

SMITH, H. M.

1949. Herpetogeny in Mexico and Guatemala. Ann. a.s.sociation Amer.

Geogr., 39:219-238, 1 fig., 1 table, September.

SPRAGUE, J. M.

1941. A study of the hyoid apparatus of the cricetinae. Jour. Mamm., 22:296-310, 5 figs., August 14.

STICKEL, L. F., and STICKEL, W. H.

1949. A _Sigmodon_ and _Baiomys_ population in ungrazed and unburned Texas prairie. Jour. Mamm., 30:141-150, 3 tables, May 23.

STUART, L. C.

1954. A description of a subhumid corridor across northern central America, with comments on its herpetofaunal indicators. Contrib.

Lab. Vert. Biol., Univ. Michigan, 65:1-26, 6 maps, 6 pls., March.

TAMAYO, JORGE L.

1949. Atlas Geografico general de Mexico, con cartas fisicas, biologicas, demograficas, sociales, economicas, y cartogramas, Mexico, 24 maps, December 12.

THOMAS, O.

1888. On the small mammals of Duval County, Texas. Proc. Zool.

Soc. London, pp. 443-450.

TRUE, F. W.

1894. On the relationships of Taylor's Mouse, _Sitomys taylori_. Proc.

U. S. Nat. Mus., 16:757-758, February 7.

TWENTE, J. H., and BAKER, R. H.

1951. New records of mammals from Jalisco, Mexico, from barn owl pellets. Jour. Mamm., 32:120-121, 1 table, February 15.

VAN GELDER, R. G.

1959. A taxonomic revision of the spotted skunks (Genus _Spilogale_).

Bull. Amer. Mus. Nat. Hist., 117(5):229-392, 47 figs., 32 tables, June 15.

WHITE, J. A.

1951. A practical method for mounting the bacula of small mammals.

Jour. Mamm., 32:125, February 15.

1953. The baculum in the chipmunks of western North America. Univ.

Kansas Publ., Mus. Nat. Hist., 5:611-631, 19 figs., December 1.

WILSON, R. W.

1937. Pliocene rodents of western North America. Carnegie Inst.

Washington, Publ. 487:21-73, 2 figs., July 23.

WOOD, A. E., and WILSON, R. W.

1936. A suggested nomenclature for the cusps of the cheek teeth of rodents. Jour. Paleon., 10:388-391, 2 figs.