132 CATALOGUE OF UNGULATES 



I. Genus OUREBIA. 



Ourebia, Laurillard, Diet. Univ. Hist. Nat. vol. i, p. 622, 1841*; 

 Sclater and Thomas, Book of Antelopes, vol. ii, p. 13, 1895 ; 

 Pocock, Proc. Zool. Soc. 1910, p. 882. 



Scopophorus, Gray, Ann. Mag. Nat. Hist. ser. 1, vol. xviii, p. 232, 



1846. 

 Oribia, Lydekker, Great and Small Game of Africa, p. 238, 1899. 



The largest members of the subfamily, readily distin- 

 guished by the presence of a larger or smaller bare patch of 

 skin (commonly described as glandular) below each ear, tufts 

 of long hairs on the knees, and the retention of small lateral 

 hoofs. Tail short and tufted. Skull with large or medium 

 lachrymal depressions ; nasals large. Horns inclining back- 

 wards, and ridged at base. 



The genus is distributed, in suitable localities, over the 

 greater part of Ethiopian Africa, where it is represented by 

 several more or closely allied species, some of which might 

 perhaps be better regarded as local races. To these the 

 following is a key : 



A. A blackish frontal mark. 



a. Size smaller; basal skull-length 5f inches... 0. ourebi. 



b. Size larger; basal skull length 6 T 5 ff 0. goslingi. 



B. No dark frontal mark. 



a. Horns more or less slender ; hair straight. 



a'. Tail largely black. 



a". Nose blackish ; size small 0. nigricaudata* 



b". Nose fawn ; size larger. 



a- 3 . Lachrymal depression broad 0. hastata. 



b 3 . Lachrymal depression narrow. 



a*. Skull small; teeth large 0. kenyce. 



b*. Skull large ; teeth small 0. microdon.^ 



b'. Tail fawn, except for a few hairs at tip. 



a'. Horns long and slender; tail short ... 0. cottoni. 



b'. Horns short and slight; tail longer ... 0. montana. 



b. Horns very thick and heavily ridged 0. haggardi. 



c. Hair curly 0. gallarum. 



* For date of this work see Ann. Mag. Nat. Hist. ser. 7, vol. vii> 

 p. 350, 1899. 



f External characters unknown. 



