652 



COMPENDIUM OF GENERIC DISTINCTIONS. 



Genus. — Rli izomy s. 



Teeth. — Incisors broad, smooth, and red in front ; molars 

 3—3 

 3—3" 



Head. — Broad, short, and abruptly terminated in front. Ears 

 very small. Eyes also small. 



Limbs. — Fore-feet four-toed, with clawed wart for thumb. 



Habitat. — Malacca and China. 



Teeth.— I. 



Genus. — Ctenomys. 

 1-1 ... 1-1 M 3-3 = g0 

 3-3 



Molars decreasing 



1-1' 1-1' 

 in size from first to last ; rootless and simple. 



Order.— UNGULATA. 



Teeth. — Incisors and canines often absent in one or both jaws. 

 Molars all similar, when present. 

 Limbs. — Toes large, covered with hoofs. 



Furcipeda. 

 Two middle toes large and equal. 



Family.— Bottom. 



Teeth.-!. °=° or 3 -=? M. 6 . 

 4-^t 4— i 6 



Head. — Mostly horns oil frontal bones. 



Limbs. — Two middle toes separate. 



Gullet and stomach, complex. 



Tribe I. — Bovkta. 



Horns developed into permanent sheath, set upon the bony 

 " core " or process from the frontal bone. 



Sub-tribe. — Bdvem. 



Teeth. — Incisors nearly equal, and projecting slightly outwards. 

 Horns. — Smooth, bent outward, and curved upwards at tip. 

 Head. — Nose broad, nostrils at side. 

 Limbs. — Knee below the middle of fore-leg. 



Horns not ridged or knobbed. 



Genus. — Bos. 



Horns. — Cylindrical and conical, curved upwards and outwards. 

 Head. — Frontal and facial portions of skull equal. 

 Dorsal ridge distinct. 

 Habitat. — Nearly all the world. 



Genus. — Bubalus. 



Horns. — Depressed or angular at base. 

 Head. — Forehead convex. 

 Habitat. — Africa and Asia. 



Genus. — Bibos. 



Horns depressed at base. 



Shoulders very high, on account of the processes of the dorsal 

 vertebrae. 



Habitat. — Asia. 



Genus. — Bison. 



Horns round, and rather depressed at base ; lateral, and curved 

 upwards and outwards. 



Head. — Muzzle short and rather wide. 



Body covered with short crisp hair, longer on the head, neck, 

 and shoulders. Dewlap none. 



Habitat. — Europe and North America. 



Genus. — Pocpliagus. 



Horns nearly cylindrical, curved outward. 



Nose hairy ; muzzle narrow and bald between nostrils. 



Tail moderate, with thick, long hair. 



Habitat.— Thibet. 



Genus. — Ovibos. 



Horns (of male) very broad at base, bent downwards over sides 

 of face, and hooked upwards at tip. Those of the female smaller, 

 and their bases farther apart. 



Nose all hairy. 



Tail short, and hidden by long hair of hind-quarters. 



Habitat. — North America. 



Sub-tribe. — Antilopece. 



I. Antelopes of the Field. Nostrils without hair inside. 

 Horns lyrate, sometimes conical ; set over eyebrows. 

 Limbs slight, and hoofs small. 

 Tail short, with long hairs at base. 



Genus. — Gazella. 



Horns. — Moderate, lyrate ; nose, tapering. Females hornless. 

 Crumen (or tear-bag, situated below the eyes) distinct. 

 Habitat.— Part of Asia and Africa. 



Genus. — An tidorcas. 



Known by expansile white streak across back. Crumen small. 

 Habitat. — Southern Africa. 



Genus. — iEpyceros. 



Horns rather long, wide, and spreading. Tuft of black hair on 

 posterior. 

 Habitat. — South Africa. 



Genus. — Antilope. 



Horns erect, slightly spiral. Crumen large. 

 Habitat. — India. 



Genus. — Tetracerus. 



Male with four horns, straight, and conical ; female hornless. 

 Muzzle large. Crumen longitudinal. 

 Habitat. — India. 



Genus. — Calotragus. 



Horns erect, slight, and tapering; female hornless. Crumen 

 arched. Knees tuftless. 

 Habitat. — Southern Africa. 



Genus. — Scopopkorns. 



Horns slight and tapering ; female hornless. Crumen trans- 

 verse. Knees tufted. 

 Habitat. — Southern Africa. 



Genus. — Oreotragus. 



Horns slight and tapering; female hornless. Crumen trans- 

 verse. Hoofs square, high, and contracted. 

 Habitat. — Southern Africa. 



Genus.- — Neotragus. 



Horns short and conical ; female hornless. Crumen large. 

 Muffle none. Crown crested. 

 Habitat. — -Abyssinia, 



Genus. — Cephalopus. 



Horns short and conical, set far back. Muffle large. Crumen 

 represented by double series of pores. Crown crested. 

 Habitat. — Africa. 



Genus. — Eleotrngus. 



Horns conical and diverging ; bent forward at tips. Nose con- 

 ical. Crumen none. Crown not crested. 

 Habitat. — Africa. 



Genus. — Kobus. 



Horns nearly lyrate, tips slightly recurved ; female hornless, 

 mane on side- of neck. Crumen none. 

 Habitat.— South Africa. 



