102 MAMMALIA. 
c. Nape with an erect, recurved mane. 
21. AAGOCERUS. 
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 the summits; the molars with largely- 
developed supplemental lobes.” 
Egocerus, sp., H. Smith, Griffith A. K. v. , 1827; Fischer, 
Syn. 623; Turner, P. Z. S. 1850, not Pallas. 
Aigoceros, Gray, Ann. & 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. AcoceRvus LEUcoPHAuS. The EraAac or BLAUBOC. 
Glaucous grey. 
Capra cerulea, Kolbe, Cap. i. 141. 
Antilope Leucophea, Pallas, Misc. 4; Spic. Z. i. 6, xii. 1; Eral. 
Syst. 271; Gmelin, S. N.1.182; Schreb. Saugth. i. 183. t. 278. 
A. Bubalides Leucophea, Licht. Berl. Mag. vi. 159 ; Thunb. Act. 
Petersb. i. 314. 
A. Oryx Leucophea, Blainv. B. S. Phil. 1816, 75; Desm. Mam. 
475 
A. Hgocerus Leucophea, H. Smith, G. A. K. v. 510; Fischer, 
Syn. 480, 646. 
_ Agocerus leucophevs, 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. 1. 263; 
Dict. Sci. Nat. 1. 446.t. .f. . 
B. Oryx Equina, Blainv. B. S. Phil. 1816, 75; Desm. Mam. 
476; Desmoulin, Dict. Class. H. N. vi. 446. t., head ; Fischer, 
Syn. 480, 645. 
A. Aigocerus Equina, H. Smith, G. A. K. iv. 177. t., v. 811. 
Aigocerus Equina, Gray, Knowsley Menag. 16. 
Antilope aurita, Burchell, MSS., fide H. Smith. 
