BOYID.E. CXCVI. 337 



a. Horns erect, compressed at base, with a short branch or flattened process 

 in front, the end conical, recurved; nose hairy at tip, except along the 

 central line; tail very short; false hoofs obsolete. 



ANTILOCAPRA, 590. 

 aa. Horns simple. 



b. Nose almost entirely hairy, not broad at tip; horns curving spirally; 

 nose convex in profile; no beard on chin; a gland and duct between 



hoofs; false hoofs present; tail long Ovis, 591. 



bb. Nose naked at tip and very broad ; horns curved, the base directed out- 

 wards; hoofs broad; tail long; forehead broader than long; body 

 highest at shoulders; anterior parts with a long, shaggy mane. 



BISON, 592. 



590. ANTILOCAPRA Ord. (Antilope -f- Capra.) 



1118. A. americana (Ord). PRONG-HORN. CABREE. ROCKY 

 MOUNTAIN " ANTELOPE." Yellowish brown, marked with brown 

 and white. L. about 5 feet. T. 7 inches. Height 3 feet. Dak. 

 to Tex. and W. 



591. OVIS Linnaeus. (Lat., sheep.) 



1119. O. montana Cuvier. BIG-HORN. ROCKY MOUNTAIN 

 SHEEP. Larger than a domestic sheep; with immense horns; 

 9 with smaller ones. Grayish brown. Dak. to Col. and W. 



592. BISON Audubon & Bachman. (Lat., a wild ox or buffalo.) 



1120. B. bison (L.). BUFFALO. BISON. Brown ; the snout, 

 hoofs, horns, etc., black. U. S. generally ; formerly abundant, but 

 now extinct, except a few herds in the Yellowstone region. 



ORDER LIII. FER^E. (THE FLESH-EATERS OR CARNI- 



VORA.) 



Canine teeth distinct, conical ; molars more or less adapted for 

 cutting ; clavicles imperfect or wanting ; toes provided with claws ; 

 skin covered with hair or fur ; alimentary canal short. General 

 structure in accordance with the predatory life led by all these 

 animals. (Lat.,/erus, a wild beast ; the name Ferce of Linnaeus, is 

 much older than Carnivora.) 



Families of Ferae. 



a. Limbs short, unfitted for walking, the toes united in a flat paddle, from 

 which only the claws project: tail very short; eyes very large; incisors 

 often less than {. (Pinnipedia.) 

 b. Hind limbs directed backwards, used only in swimming; claws strong; 



neck short PHOCID^;, 197. 



aa. Limbs fitted for walking, the toes distinct; incisors . (Fissipedia.) 

 b. Hind feet with 5 toes. 



c. Feet fully plantigrade; sectorial teeth and the molars behind them all 

 tuberculate. 



22 



