CHAP. XVII.] MAM.MALIA. 223 



a very peculiar form more nearly allied to the buffaloes tlian 

 to any other type of oxen. 



Sub-family II. Tragelaphin^ (3 genera, 11 species). The 

 Bovine Antelopes are large and handsome animals, mostly 

 Ethiopian, but extending into the adjacent parts of the Pala3- 

 arctic aud Oriental regions. The genera are : Orcas (2 sp.), 

 elands, inhabiting all Trojjical and South Africa. Tragela- 

 2)hi(s (8 sp.), including the bosch-bok, kudu, and other large 

 antelopes, ranges over all Tropical and South Africa (Plate IV., 

 vol. ii., p. 261). Portax (1 sp.) India, but rare in Madras and 

 north of the Gauges. 



Sub-family III. OkygiN/E (2 genera, 5 species). Oryx (4 sp.) is 

 a desert genus, ranging over all the African deserts to South 

 Arabia and Syria ; Addax (1 sp.) inhabits Xorth Africa, North 

 Arabia, and Syria. 



Sub-family IV. Hippotkagin/E (1 genus, 3 species). The 

 Sable Antelopes, Hippotragus, form an isolated group inhabiting 

 tlie open country of Tropical Africa and south to the Cape. 



Sub-family V. Gazellin^e (6 genera, 23 species). This is 

 a group of small or moderate-sized animals, most abundant in 

 the deserts on the borders of the Palpearctic, Oriental, and 

 Ethiopian regions. Gazclkt (17 sp.) is typically a I^alrearctic 

 desert group, ranging over the great desert plateaus of North 

 Africa, from Senegal and Aljyssinia to Syria, Persia, Beloo- 

 chistan, and the plains of India, with one outlying species in 

 South Africa. Procapra (2 sp.), Western Thibet and Mongolia 

 to about 110° east longitude. Antilope (1 sp.) inhabits all the 

 plains of India. jEp-i/ceros (1 ep.) the pallah, inhabits the open 

 country of South and South-east Africa. Saiga (1 sp.) a singular 

 sheep-faced antelope, which inhabits the steppes of Eastern 

 Europe and Western Asia from Poland to the Irtish River, 

 south of 55° north latitude. (Plate II., vol. i., p. 218.) Pan- 

 thalops (1 sp.) confined to the highlands of AVestern Thibet and 

 perhaps Turkestan. 



Sub-family VI. ANTiLOCAPRiNyE (1 genus, 1 species), Antilo- 

 capra, the prong-horned antelope, inhabit both sides of the 

 Pocky Mountains, extending north to the Saskatchewan and 



