248 FAUNA AMERICANA. 



tinated fibres, which grow by laminae, and remain 

 during life. 



Genus. 



^ntilope, Pallas, Schreb. Gmel. Scopoli, Erxleb. 

 Bodd. Cuv. Geoff. Illig. 

 Tragus, Klein. 

 Capra moschus, Linn. 

 Gazella, Briss. 

 Tragulus, Briss. Klein. 

 Antilocapra, Ord. 

 Mazama, Rafinesque. 



Incisors generally equal, and contiguous at their 

 borders ; sometimes the two intermediate are very 

 broad, a little separate from each other, leaning 

 against the lateral ones by their posterior face. 



Horns in both sexes, or in the male only, cover- 

 ing an osseous process of the frontal bone, which 

 is generally solid and without sinuses, round, va- 

 riously contorted, often marked with transverse 

 rings, or with a projecting spiral crest, sometimes 

 bifurcated. 



Facial line more or less straight, often lachry- 

 mal depressions or naked sub-orbitar grooves, se- 

 creting a peculiar fluid. 



