Zoological Society. 215 



not one of the specimens which have come under my observation have 

 had any inclination to assume that form : but as this is the only 

 Western- African species which in any way agrees with Buffon' s figure, 

 perhaps it is best to adopt Mr. Ogilby's suggestion. The name of 

 Koba or Kob appears to be common to many species. Schinz errone- 

 ously considers Damalis Senegalensis, Antilope adenota and A. for- 

 fex (H. Smith) as synonyms of this species. 



c. Nape with a linear, central, compressed, recurved mane. 



20. Aigocerus, H. Smith ; Egocerus, Desm. ; 

 Hippotragus, Sundev. 



Horns conical, elongate, rather compressed, ringed, recurved ; back 

 of the neck with a linear reversed mane ; tear-gland covered with a 

 tuft of hair ; teats two. 



1. Aigocerus Equinus. The Etaak or Equine Antelope. 



Spot above the eyes and pencil before the eyes fulvous grey ; nose 

 whitish ; face black ; nuchal mane distinct. 



Aigoceros Equina, H. Smith ; Harris, W. A. A. t. 21. — A. glauca, 

 Forster. — A. Osanne, Geoff. — A. barbata, H. Smith. — A. Truteri, 

 Fischer. — A. aurita, Burch. MSS. — Capra JEthiopica, Schinz. — 

 Tzeiran, Buffon, H. N. xii. t. 31. f. 6, horn. — Aigocerus Equinus and 

 A. leucophceus, Gray, Knows. Men. 16. 



Inhabits S. Africa. Brit. Mus. W. Africa ; Gambia {Whitfield). 

 Horns. Brit. Mus. 



Var.1 Smaller. "Fur glaucous grey; tuft before the eye short, 

 brown; nuchal crest none ; hoofs small." — Sundevall. 



Antilope leucophceus, Pallas; H. Smith, G. A. K. v. t. 179. — 

 Aigocerus leucophceus, Gray, Knows. Menag. 16. 



Inhabits the Cape of Good Hope ; now extinct. Mus. Stockholm, 

 Mus. Upsal and Mus. Paris. 



The head of the female covered with the skin from Macarthy's 

 Island, on the coast of Gambia, which Mr. Whitfield brought home, 

 did not appear to differ from the specimen from the Cape in the 

 British Museum. The species does not appear to be uncommon in 

 the locality, for Mr. Whitfield brought over several pairs of horns. 

 He states the flesh is very good venison. " It is called Bacoi or 

 White Mouth by the Mandingoes, Kob and Koba by the Joliffs, 

 and Vache brune by the French at Senegal." This is certainly not 

 the Kob of Buffon (xii. t. 32. f. 1, 2). The negroes at the Gambia 

 declare that this animal never bears more than one fawn ; for after 

 that period, the horns increase in length, and enter the loins and 

 destroy the animals ! 



Buffon (xii. 2/1. t. 31. f. 6) figures the horn of this species, which 

 had been made into a powder-flask, under the name of Tzeiran. 



A. barbata of Daniels appears to be only a bad drawing of this 

 species. 



The variety is the size of the Common Stag, Cervus Elaphus. 

 M. Sundevall observes that it is as different from A. Equina, as the 



