24 MANUAL OF NATUEAL HISTOEY. 



lyrate, or spirally twisted, frequently annu- 

 lated ; sometimes large and approximated at 

 base, descend, and turn up at point. 



The Goats (Caprinse). Have a narrow clothed 

 muzzle ; chin generally well bearded ; hair 

 sometimes long and shaggy ; limbs short and 

 stout ; hoofs large ; tail depressed and hairy ; 

 horns generally large, directed upwards, back- 

 wards, and outwards. 



The Sheep (Ovinae). Have the muzzle narrow 

 and clothed ; limbs strong ; horns angulated, 

 rugose, massive, directed backwards, then 

 drooping assume a more or less spiral form. 



The Oxen (Bovinse). May be known by their 

 large and powerful form, short neck, dewlap, 

 comparative shortness of legs in proportion to 

 length and bulk of bodies, and their broad 

 naked muzzle ; tail generally long and tufted ; 

 horns usually round and tapering, sometimes 

 flattened, occasionally very massive at base. 



X. ORDER. EDENTATES (Edentata). 



No front teeth, or toothless ; molars, when pre- 

 sent, of simple structure, being destitute of enamel 

 and of distinct roots; large claws embracing extre- 

 mities of toes ; the whole group marked by a want 

 of agility. 



1. FAMILY. Sloths (Bradypodidse). Head short 

 and rounded ; no cutting teeth, canines rather 

 pointed, molars cylindrical ; two pectoral 

 mammae; anterior limbs long and weak, 



