FAUNA AMERICANA. 259 



Incisors forming an entire arch, regularly ap- 

 proximate at their borders. 



Snout without a muzzle ; facial line arched. 



Horns large, angular, wrinkled transversely, 

 twisted laterally in a spiral form, and enveloping 

 an osseous arch, cellular in structure. 



No lachrymal depressions; no beard to the 

 chin; ears moderate, pointed; legs rather slen- 

 der, without tufts at the wrists ; two mammae ; no 

 inguinal pores ; tail more or less short, inflected 

 or depending. 



Habit. Analogous to that of the goats. 



Inhabit both continents. 



Species. 



1. Ovis ammon. 



Mouflon argali, Erxleb. Gmel. Shaw, Gen. 

 Zool. vol. ii. part 2. plate 201. Ovis argali^ 

 Bodd. Stepnie baranni, G. S. Gmel. Voy. in Si- 

 beria, tom. i. p. 368. Steller, Kamsh. .-^ p. 127. 

 Ovis fera sibiricte, vulgo ^rgali dicta, Pallas, 

 Spicilegise Zool. fasc. xi. p. tab. 1. Ovis mon- 

 tana, Geoff. Ann. du Mus. tom. 2. pi. 60. Mou- 

 Jlon d'Amerique, Ovis montana, Desm. Mamm. 

 (Encycl. pi. puppl. 14. fig. 4.) Big-horn, Lewis 

 and Clark. Miisimon, Pliny. Ophion, of the 

 Greeks. ,Rrgali of the Siberians. Kamennoi 

 barren, or sheep of the rocks, of the Russians. 

 Taye, of the Monqui-Indians. Sheep of Califor" 

 nia, Hernandez. Goadinachtsch, of the Kamschat^ 



