674 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
Jlegoceros (Otis) montana, Wagner, Suppl. Schreber Saugt. IV, 1844, 505.— Ib. V, 468. 
Ovis pygargus, Ham. Smith, Giiff. Cuv. IV, 1827, 318; plate.—I b. V, 1827, 359. 
Ovis californianus, Douglass, Zool. Journal, IV, 1829, 332. 
Ovis californiana, Blyth, Pr. Zool. Soc Lond. VIII, June, 1840, 65.— Ib. Ann. Nat. Hist. VII, 1841, 199, 260. 
Ovis californica, Wagner, Schreber ’s Si’ugthiere, V, 1836, 1371. 
? ? ? Ovis nivicola, Eshscholtz, Zool, Atlas, I, 1829, 1 ; tab i. 
Blyth, Ann. Nat. Hist. VII, 1841, 197. 
Ovis cervina, Desmarest, Nouv. Diet. XXI, 1818, 553. 
Mountain Ram, McGillivray, N Y. Med. Rep. VI, 1803, 237 ; plate. (Shot on side of R. Mts. between Mis¬ 
souri and Saskatchewan.) 
Belier demontagne, Geoffr. Ann. du Mus. II, 1803, 360 ; pi. lx. (McGillivray’s specimen.) 
Taye, a species of sheep, Barton’s Med. and Physical Journal, II, 1806, 106. (Refers to Bighorn, 1, 1805, 75.) 
Sp. Ch. Much larger than the domestic sheep. Horns, in the male very large, curving round, but not completing a full circle, 
and with but little of a spiral twist, compared with other species. The tips of the horns not more than twenty inches apart. 
General color grayish brown, paler about the head ; a light patch under the lower jaw. Legs like the body, with a narrow 
line of white on their posterior edges. Buttocks, for some inches anterior to the tail, and belly white. Tail like the back. 
Female with smaller horns, more like those of the goat. 
In this species the muzzle is short hut rather acute. The nostrils are much as described in 
the antelope, except that in most specimens there is no appreciable strip of naked skin extend¬ 
ing from the septum to the edge of the upper lip. In one skin a narrow black line of naked 
skin is barely appreciable; in the others nothing of the kind is apparent. The nostrils 
Fig. 24. Ovis montana, Male. End of muzzle, as viewed from above, and in front. (Taken from the mounted specimen 
brought by Captain Stansbury.) 
Fig. 25. Under surface of left front hoof. 
are elongated, nearly horizontal, about a quarter of an inch apart anteriorly, and diverging 
behind. Their upper border is naked, the lower hairy. In a very young specimen there is a 
short growth of short hair over the entire border of the nostrils. 
The ears are moderately long ; shorter and much more rounded at the apex than in the 
antelope. 
In a young specimen there is an apparent indication of a larmier anterior to the orbit, 
although overgrown with hair. I notice nothing of the kind in the skull. 
The under surfaces of the hoofs are shaped much as in the antelopes ; very long, narrow,, 
triangular, acutely pointed anteriorly, with the sides nearly straight, and convex behind; 
viewed laterally, their posterior outline is one and a half times the superior. The anterior 
hoofs are the longest. Both feet are provided with the second pair of small hoofs, above the 
first. 
