Marginal records (A. H. Howell, 1924:22).—Wyoming: Bridger Peak, Sierra Madre. Colorado: Mt. Zirkel; Trappers Lake; Crested Butte; Irwin; type locality; Sand Mtn., 9 mi. SW Hahns Peak P. O.
Ochotona princeps fumosa A. H. Howell.
1919. Ochotona fenisex fumosa A. H. Howell, Proc. Biol. Soc. Washington, 32:109, May 20, type from Permilia Lake, W base Mt. Jefferson, Linn County, Oregon.
1924. Ochotona princeps fumosa A. H. Howell, N. Amer. Fauna, 47:33, September 23.
Marginal records (A. H. Howell, 1924:34).—Oregon: About 900 ft., 15 mi. above Estacada; Paulina Lake; Three Sisters; Lost Creek Ranger Station, 10 mi. SE McKenzie Bridge.
Ochotona princeps fuscipes A. H. Howell.
1919. Ochotona schisticeps fuscipes A. H. Howell, Proc. Biol. Soc. Washington, 32:110, May 20, type from Brian Head, Parowan Mts., Iron County, Utah.
1941. O[chotona]. p[rinceps]. fuscipes, Hall and Hayward, The Great Basin Naturalist, 2:108, July 20.
Marginal records.—Utah: type locality; 9000 ft., Duck Creek (Durrant, MS).