102 MAMMALIA. 



c. Nape with an erect, recurved mane. 



21. ^EGOCERUS. 



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

 arising immediately above the orbits. Nape with a linear, erect, 

 reversed mane. Tear- bag covered with a tuft of hair. Female 

 horned. Teats 2. Skull with " a small suborbital fissure, but 

 no fossa ; the masseteric ridge ascending high before the orbit ; 

 the auditory bulla moderate ; the occipital portion of the skull 

 much prolonged ; the basioccipital portion widened, its two pairs 

 of tubercles much developed, with a deep groove between them ; 

 the incisors gradually increasing in size to the median pair, which 

 are not expanded at their summits; the molars with largely- 

 developed supplemental lobes." 



^Egocerus, sp., If. Smith, Griffith A. K. v. , 1827; Fischer, 

 Syn. 623; Turner, P. Z. S. 1850, not Pallas. 



Aigoceros, Gray, Ann. fy Mag. N. H. 1846, 232; Knowsley 

 Menag. 16; Proc. Zool. Soc. 1849, 132. 



Egocerus, Desmar. Mamm. 475. 



Oryx, sp., Blainv. Bull. Sci. Phil. 1816; Ogilby, P. Z. S. 1836, 

 139. 



Hippotragus, Sundevall, Pecora, 72. 



Bubalides, sp., Licht. Berl. Mag. vi. 159, 1814. 



1. EGOCERUS LEUCOPH^US. The ETAAC or BLAUBOC. 

 Glaucous grey. 



Capra caerulea, Kolbe, Cap. i. 141. 



Antilope Leucophea, Pallas, Misc. 4 ; Spic. Z. i. 6, xii, 1 ; Erxl. 



Syst. 271 ; Gmelin, S. N. i. 182 ; Schreb. Saugth. i. 183. t. 278. 

 A. Bubalides Leucophea, Licht. Berl. Mag.\i. 159; Thunb. Act. 



Petersb. iii. 314. 

 A. Oryx Leucophea, Blainv. B. S. Phil. 1816, 75; Desm. Mam. 



475. 



A. ^Egocerus Leucophaea, H. Smith, G. A. K. v. 510; Fischer, 

 Syn. 480, 646. 



^Egocerus leucophseus, Gray, List Mamm. B. M. 158; Cat. 



Osteol. Spec. B. M. 58 ; Turner, P. Z. S. 1848. 

 Antilope Equina, Geoff. Cat. Mus. Par. in Cuvier R. A. i. 263; 



Diet. Sci. Nat. ii. 446. t. . f . . 



B. Oryx Equina, Blainv. B. S. Phil. 1816, 75; Desm. Mam. 

 4?6; Desmoulin, Diet. Class. H. N. vi. 446. t., head ; Fischer, 

 Syn. 480, 645. 



A. ^Egocerus Equina, H. Smith, G. A. K. iv. 177- t., v. 811. 

 Aigocerus Equina, Gray, Knowsley Menag. 16. 

 Antilope aurita, Burchell, MSS., fide H. Smith. 



