RUMINANTIA-CAVICORNIA-OVIS MONTANA. 
673 
OVIS, Linn. 
Ovis, LiNNiEUS, “ Systema Naturae, 1735.” 
Horns curving so much backwards that the tip is brought forwards again. Tear hag generally present, sometimes very 
small. Nose convex ; chin without a beard ; nose entirely hairy, except between the nostrils ; a secreting gland between 
the hoofs. 
The above diagnosis will serve to distinguish the sheep proper from the goats. According to 
Sundevall and Keyserling & Blasius the lachrymal sinus (tear hag of Gray) is small. The tail 
is very short, except in the domestic species. Horns, trigonal, the greatest diameter of their 
cross section at the base transverse to the axis of the skull; they bend round, so as to form 
part of a circle, or more than one being sometimes twisted spirally ; the diameter of the curve, 
however, less than the length of the head. 
In Capra, on the other hand, the forehead is much arched. The lachrymal sinus and glands 
between the hoofs are wanting. The chin is bearded. The hoofs not less high on the inner 
side than on the outer. Horns present in both sexes. The horns are compressed, with a sharp 
edge before and behind, strongly angular, curving backwards, the greatest diameter of their 
cross section nearly parallel with the axis of the head; the horns do not nearly complete a 
circle, nor do the tips ever come forwards ; their curve forms part of a circle, whose diameter is 
much longer than the head. 
In both sheep and goats the horns are generally of a dull yellowish brown color, very different 
from the polished black of the antelopes. 
OVIS MONTANA, Cuv. 
Mountain Sheep; Bighorn. 
Ovis ammon , Mitchill, Medical Repos. X, 1807, 35. 
Ord, in Guthrie’s Geog. (2d Am. Ed.) II, 1815, 292, 308. 
Harlan, F. Amer. 1825, 164. (Desc. from specimen of Lewis and Clark.) 
Godman, Am. N. H. II, 328. 
Ovis Montana , Cuvier, R. An. I, 1817, 267. 
Ord, Jour, de Physique, LXXXYII, 1818, 151. 
Desmarest, Mamm. II, 1822, 437. 
Richardson, F. Bor. Am. I, 1829, 271 ; pi. xxiii.—I b. Zoology of the Herald, Fossil Mammals, 
I, 1852,87 ; pi. i. (skeleton.) 
Doughty’s Cab. N. H. I, 1830, 193 ; pi. xvii, (from specimen of Lewis and Clark.) 
Wagner, Schreber’s Saugt. V, 1836, 1367 ; pi. cclxiv, D*. 
Prince Max. Reise Nord-America, I, 1839, 549. 
Blyth, Ann. N. H. VII, 1841, 197, 259. 
Gray, Knowsley Menagerie, 1850, 37. 
Aud. & Bach. N. Am. Quad. II, 1851, 163 ; pi. lxxiii. 
Baird, Rep. U S. Pat. Off. Agricultural for 1851, (1852,) 123, fig. plate.— Ib. Stansbury’s Expcd 
Great Salt Lake, 1852,312. 
Giebel, Zool. Saugt. 1855, 282. 
Capra Montana , Fischer, Synopsis, 1829, 488. 
85 L 
