228 FAUNA AMERKJANA. 



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Head long, terminated generally by a muzzle ; 

 eyes large, pupil elongated transversely; often 

 cribriform depressions in the bone beneath the 

 inner canthus of the eye. 



Eyes large, simple and pointed. 



Tongue smooth. 



Horns more or less developed, according to the 

 species and age of the individual ; at first cartilagi- 

 nous and clothed with a tender skin, hairy and 

 sensible, afterwards naked and rugous, being 

 placed on two tuberosities of the frontal bone, 

 and composed of a principal trunk, of branches 

 variously directed, of enlarged and flattened parts, 

 or knobs, which surround the bases of the stocks, 

 and which are formed of irreciular strains. 



Body slender; legs fine and nervous; hairs ge- 

 nerally dry and friable, presenting colours which 

 are nearly similarly disposed in all the species ; 

 young individuals having often a series of white 

 ' spots on a faw^n base. 



Four inguinal mammsR ; testicles enclosed in a 

 scrotum, and visible externally ; no gall bladder. 



Habit. Peaceable, and entirely herbivorous, 

 rather intelligent, living either in troops, or iso- 

 lated and in pairs, inhabiting large forests or 

 plains; bringing forth one or two young at a birth 

 , in spring, in temperate countries, and in all other 

 seasons in warm climates ; because, in the first 

 instance, the rut takes place in the fall ; in the 



