[1] For external parts, 34 individuals were used.
[2] For external parts, 29 individuals were used.
Bailey, V.
1900. Revision of American voles of the genus Microtus. N. Amer. Fauna, 17:1-88, June 6.
1917. A new subspecies of meadow mouse from Wyoming. Proc. Biol. Soc. Washington, 30:29-30, February 21.
Cary, M.
1911. A biological survey of Colorado. N. Amer. Fauna, 33:1-256, August 17.
1917. Life zone investigations in Wyoming. N. Amer. Fauna, 42:1-95, October 3.
Davis, W. B.
1939. The Recent mammals of Idaho. 400 p., front., illus., maps, diagrs., Caldwell, Id., The Caxton Printers Ltd., April 5.
Durrant, S. D.
1952. Mammals of Utah, taxonomy and distribution. Univ. Kans. Publ., Mus. Nat. Hist., 6:1-549, 91 figs, in text, 30 tables, August 10.
Elton, C.
1942. Voles, mice and lemmings; problems in population dynamics. 496 p., illus. (maps), tables, Oxford, The Clarendon Press, London.
Goin, O. B.
1943. A study of individual variation in Microtus pennsylvanicus pennsylvanicus. Jour. Mamm., 24:212-224, June 7.
Hall, E. R.
1938. Notes on the meadow mice Microtus montanus and Microtus nanus with descriptions of a new subspecies from Colorado. Proc. Biol. Soc. Washington, 51:131-134, August 23.
Hill, E. A.
1935. Cranial foramina in rodents. Jour. Mamm. 16(2):121-129.
Howell, A. B.
1924. Individual and age variation in Microtus montanus yosemite. Jour. Agr. Res., 28(10):977-1015, June 7.
Kellogg, R.
1922. A study of the California forms of the Microtus montanus group of meadow mice. Univ. California Publ. Zool., 21:245-274, April 18.
Merriam, C. H.
1891. Results of a biological reconnaissance of south-central Idaho. N. Amer. Fauna, 5:1-113, July 30.
Piper, S. E.
1909. The Nevada mouse plague of 1907-8. U. S. Dept. Agr., Farmers' Bul. 352, pp. 1-23, 9 figs.
Warren, E. R.
1942. The mammals of Colorado, their habits and distribution. Second (revised) edition, Univ. Oklahoma Press, Norman, xviii-330 p., front., 50 plates.
Transmitted March 22, 1954.
25-3560
One typographical error was corrected: "Castlford" was corrected to "Castleford" in "Twin Falls Co.: Castleford Fenced Plot".
This eBook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg™ License included with this eBook or online at www.gutenberg.org. If you are not located in the United States, you will have to check the laws of the country where you are located before using this eBook.