666 EXTINCT AND VANISHING MAMMALS 



It is smaller than the typical subspecies, and its general color is 

 much darker than that of " C. coxi" [ = C. s. sylvicultrix] ; blackish 

 fawn to light gray on cheeks and chin ; forehead and dorsal part of 

 neck nearly black; frontal crest rufous, slightly mixed with black; 

 anterior dorsal patch almost linear, the hairs pale yellowish, tipped 

 with fuscous; posterior patch not clearly separated from the other, 

 semilunar in shape, the hairs black, tipped with white ; under parts 

 washed with yellowish. The type is a young male, whose shoulder 

 height is 660 mm.; horns, 41 mm. (Rothschild and Neuville, 1907, 

 pp. 98-100.) 



A large number are said to have been collected in the Ituri forest 

 by the American Museum Congo Expedition (1909-1915). 



"A yellow-backed Duiker has recently been obtained from the 

 forests of this district [Kigezi District, Western Province of Uganda] 

 by Captain J. E. T. Phillips" (Duke, in Maydon, 1932, p. 281). 



The species is said to have been seen on Mount Mikeno, Belgian 

 Congo, by Gyldenstolpe. Baron de 1'Epine has sent a specimen from 

 Ruanda. (Schouteden, 1934, p. 302.) 



Ward (1935, p. 86) records a specimen from the Sudan-Congo 

 border. 



Miss St. Leger (1936, p. 215) mentions three specimens from 

 Mount Sabinio [near the Congo-Uganda-Ruanda boundary] and 

 British Ruanda. 



Its existence in the Pare National Albert is doubtful. It is found 

 on the mountain chain forming the Congo-Nile watershed east , of 

 Lake Kivu. ' (Conservator, National Parks, Belgian Congo, inMtt.., 

 November, 1936.) 



It is met with on the slopes of the Virunga, Muhavura, and prob- 

 ably other volcanoes in Ruanda (Verhulst, in litt., January, 1937.) 



Jentink's Duiker; Black-headed Duiker. Tapirantilope (Ger.) 



CEPHALOPHUS JENTINKI Thomas 



Cephalophus jentinki Thomas, Proc. Zool. Soc. London 1892. p. 417. 1892, 

 ("Liberia"; the restricted type locality is apparently Sharp Hill, near 

 Schieffelinsville (cj. Biittikofer, 1890, vol. 2, p. 375).) 



FIGS.: Notes Leyden Mus., vol. 7, pi. 10, 1885, and vol. 10, pi. 1. 1888; Biitti- 

 kofer, 1890, vol. 2, p. 374, fig.; Sclater and Thomas, 1895, vol. 1, pi. 15. 



This species is noteworthy by reason of its extreme rarity; in col- 

 lections and its restricted range in Liberia. No additional specimens 

 have been taken for more than half a century, and the male is still 

 unknown. 



"Colour of head, ears, neck all round as far back as the withers, 

 throat, and a narrow sternal line deep uniform black ; of body above 

 arid below coarsely grizzled grey; the hairs ringed with black and 



