Ochotona princeps (Richardson, 1828) . Zool. J., 3:520 Order Lagomorpha Robert S. Hoffmann 7W4C4 (Richardson, 1828) Richardson 1828 [243,882,1525,1564] Mammalia Ochotonidae Ochotona Animalia Lagomorpha 4 811 Chordata species princeps  TYPE LOCALITY: "Rocky Mountains"; restricted by Preble (1908)to "near the sources of Elk (Athabasca) River," [Athabasca Pass, head of Athabasca River, Alberta, Canada].  DISTRIBUTION: Mountains of W North America from C British Columbia( Canada) to N New Mexico, Utah, C Nevada, and EC California( USA).  STATUS: Most populations are not currently threatened, except for a few isolates in the Great Basin (goldmani, obscura, nevadensis, tutelata); tutelatamay now be extinct (A. T. Smith et al., 1990).  SYNONYMS: albataGrinnell, 1912; barnesi,Durrant and Lee, 1955; brooksiHowell, 1924; brunnescensHowell, 1919; cinnamomea Allen, 1905; clamosaHall and Bowlus, 1938; cuppesBangs, 1899; fenisex Osgood, 1913; figginsiAllen, 1912; fumosaHowell, 1919; fuscipesHowell, 1919; goldmaniHowell, 1924; howelliBorell, 1931; incanaHowell, 1919; jewettiHowell, 1919; lasalensisDurrant and Lee, 1955; lemhiHowell, 1919; levis Hollister, 1912; littoralisCowan, 1955; lutescensHowell, 1919; minimusLord, 1863; mooreiGardner, 1950; muiriGrinnell and Storer, 1916; nevadensisHowell, 1919; nigrescensBailey, 1913;  obscuraLong, 1965; saturataCowan, 1955;  saxatilisBangs, 1899; schisticeps( Merriam, 1889); septentrionalisCowan and Racey, 1947; sheltoni Grinnell, 1918; tayloriGrinnell, 1912; tutelataHall, 1934; uinta Hollister, 1912; utahensisHall and Hayward, 1941; ventorumHowell, 1919; wasatchensisDurrant and Lee, 1955.  COMMENTS: Broadbooks (1965)and Youngman (1975)considered  princepsand  collarisconspecific. Corbet (1978c), following Gureev (1964)included  princepsin  alpina.A statistical réévaluation of craniometric data by Weston (1981)indicated that  princeps, collaris,and  alpinaare separate species. Reviewed by Smith and Weston (1990, Mammalian Species, 352). 3970383341 Canada 4 811 Alberta