NEOTJIAGIN/E 159 



groups, which have been regarded as of generic value, but 

 are here classed as subgenera : — 



A. Skull with a preniaxillo -maxillary vacuity ; horns 



relatively long, strongly ridged, with a distinctly 



upward direction Nesotragus. 



B. Premaxillo -maxillary vacuity present ; horns short, 



stout, nearly smooth, except at base, inclining 

 backwards nearly in frontal plane Hylarnus. 



c. No premaxillo -maxillary vacuity; horns very small, 



smooth, inclining backwards in frontal plane Neotragus. 



1. Subgenus NESOTRAGUS. 



Nesotragus, Von Dilben, Ofv. K. Vet.- Ah. Forhandl. vol. iii, p. 221, 

 1847 ; Sclater and Thomas^ Booh of Antelopes, vol. ii, p. 49, 1895. 



A maxillo-premaxillary vacuity present in skull ; front 

 border of orbit situated above first or second upper molar ; 

 hind border of palate opposite hind outer angle of third 

 upper molar ; nasals of medium width above ; horns relatively 

 long, strongly ridged, with a distinct upward inclination. 



The distributional area is restricted to East Africa. The 

 two species are distinguishable as follows : — 



A. Size smaller ; horns short and slender ; tail 



like back above N. moschatus. 



B. Size larger ; horns longer and stouter ; tail 



blackish above N. living stoniamis. 



I. XEOTEAGUS (NESOTEAGUS) MOSCHATUS. 



Nesotragus moschatus, Von Dilben, Ofv. K. Vet.-Ah. Forhandl. 

 vol. iii, p. 221, 1847; Sundevall, K. SvensJca Vet. -Ah. Handl. 

 1845, p. 327, 1847 ; Gray, Knowsley Menagerie, p. 8, 1850, Proc. 

 Zool. Soc. 1850, p. 119, Ann. Mag. Nat. Hist. ser. 2, vol. viii. 

 p. 137, 1851, Cat. Ungulata Brit. Mils. p. 75, 1852, Cat. 

 Runiinants Brit. Mas. p. 30, 1872, Hand-List Ruminants Brit. 

 Mus. p. 99, 1873 ; Temminch, Esquiss. Zool. Guine, pp. 192 

 and 209, 1853 ; Sclater, Proc. Zool. Soc. 1864, p. 101 ; Fitzinger. 

 Sitzher. h. Ah. Wiss. Wien, lix, pt. 1, p. 164, 1869; Hnet, Bull. 

 Soc. Acclim. ser. 4, vol. iv, p. 490, 1887; Ward, Records of Big 

 Game, p. 80, 1892; Matscliic, Saugetliiere Deutsch-Ostafriha, 

 p. 119, 1895; Sclater and Thomas, Booh of Antelopes, vol. ii, 

 p. 51, pi. xxviii, 1895; Bryden, Great and Small Game of Africa. 

 p. 255, 1899; Lonnherg, SjostedVs Kilimandjaro-Meru Ejcped.. 

 Mamm. p. 44, 1908, X. Svensha Vet.-Ah. Handl. vol. xlviii. 

 no. 5, p. 153, 1912. 



