RUMIXANTIA CAVICORNIA OVIS MONTANA. 673 



OVIS, Linn. 



Ovis, LINNJEUS, " Systema Naturae, 1735." 



Horns curving so much backwards that the tip is brought forwards again. Tear bag 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 bag 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, Guv. 



Mountain Sheep; Bighorn. 



Ovis ammon, MITCHJLL, 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, LXXXVII, 1818, 151. 



DESMAREST, Mamm. II, 1822, 437. 



RICHARDSON, F. Bor. Am. I, 1829, 271 ; pi. xxtii. IB. Zoology of the Herald, Fossil Mammals, 



I, 1852, 87 ; pi. i. (skeleton.) 



DOCGHTT'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. 

 ACD. & BACH. N. Am. Quad. II, 1851, 163 ; pi. Ixxiii. 

 BAiRD,Rep. U. S. Put. Off. Agricultural for 1851, (1852,) 123, fig. plate. IB. Stansbary's Expcd 



Great Salt Lake, 1852, 312. 

 GIEBEL, Zool. Saugt. 1855, 282. 

 Capra montana, FISCHER, Synopsis, 1829, 488. 



85 L 



