1912. Ochotona levis Hollister, Proc. Biol. Soc. Washington, 25:57, April 13, type from Chief Mountain [= Waterton] Lake, Alberta.
1924. Ochotona princeps levis, A. H. Howell, N. Amer. Fauna, 47:16, September 23.
Marginal records (A. H. Howell, 1924:16).—Alberta: type locality. Montana: Little Belt Mts.; Belt Mts.; Chief Mountain Lake.
Ochotona princeps lutescens A. H. Howell.
1919. Ochotona princeps lutescens A. H. Howell, Proc. Biol. Soc. Washington, 32:105, May 20, type from approximately 8000 ft., Mount Inglismaldie, near Banff, Alberta.
Marginal records.—Alberta: Mistaya Creek, Banff-Jasper Highway (Anderson, 1947:96); Canmore (A. H. Howell, 1924:15); Mt. Forget-me-not, 50 to 75 mi. SW Calgary (ibid.).
Ochotona princeps moorei Gardner.
1950. Ochotona princeps moorei Gardner, Jour. Washington Acad. Sci., 40:344, October 23, 1950, type from 10,000 ft., 1 mi. NE Baldy Ranger Station, Manti Nat'l Forest, Sanpete County, Utah. Known from type locality only.
Ochotona princeps muiri Grinnell and Storer.
1916. Ochotona schisticeps muiri Grinnell and Storer, Univ. California Publ. Zool., 17:6, August 23, type from 9300 ft., Ten Lakes, Yosemite Nat'l Park, California.