LASIOPYGA 308 



Lasiopyga ascanius whitesidei (Thomas). 



Cercopithecus ascanius whitesidei Thos., Ann. Mag. Nat. Hist., 

 8th Ser., IV, 1909. p. 542. 



Type locality. Upper Lulange River, Central Congo. Type 

 in British Museum. 



Genl. Char. Nose spot buff not white ; cheek stripe less devel- 

 oped; black cheek patch of L. ascanius wanting. 



Color. Above tawny olive, hairs ringed with black and ochra- 

 ceous ; frontal line to base of ears, black ; temporal whorl creamy white ; 

 cheek band darker ; under parts creamy white ; outer side of forearms 

 blackish; outer side of thighs like back, of legs slaty gray; inner side 

 of limbs whitish ; hands blackish ; feet black, buff speckled ; tail like 

 back at base grading into rufous, and then to black at tip, beneath 

 white, then reddish, and black at tip. 



Measurements. Total length, 1,410; tail, 880; foot, 120. Skull: 

 "breadth of braincase, 52 ; length of upper molar series, 22." 



Lasiopyga signata (Jentink). 



Cercopithecus signatus Jent., Notes Leyd. Mus., VIII, 1886, p. 

 55; Sclat., Proc. Zool. Soc. Lond., 1893, p. 257; Matschie, 

 Sitzungsb. Gesell. Naturf. Freunde, Berlin, 1893, pp. 100, 

 215 ; Forbes, Handb. Primates, II, 1895, p. 45 ; Pousarg., Ann. 

 Scien. Nat., Ill, 7me Ser., 1896, p. 180; Pocock, Proc. Zool. 

 Soc. Lond., II, 1907, p. 721, pi. XL, fig. 3. 



Cercopithecus martini Sclat., Proc. Zool. Soc. Lond., 1884, p. 176, 

 pi. XIV: 1893, p. 245, (nee Waterh.) : Forbes, Handb. Pri- 

 mates, II, 1894, p. 47, (nee Waterh.). 



Cercopithecus nictitans Schleg., Mus. Pays-Bas, Simiae, 1876, p. 

 89, (Part.). 



JENTINK'S GUENON. 



Type locality. Unknown. Type in Leyden Museum. 



Geogr. Distr. West Africa. Banana? border of French Congo 

 and Angola. (Jentink). 



Genl. Char. No black band on back of head. 



Color. Band across forehead, and from eyes to ears black; top 

 of head and outer side of arms above elbow, dark buff, the hairs being 

 blackish and tips dark buff, giving the dominant color ; upper parts and 

 sides of body reddish speckled, the hairs being slate color and tips red ; 

 forearms, hands and feet black ; legs black speckled with reddish ; 

 sides of face and cheeks yellowish ; nose black except a white spot 

 on tip ; chin, under sides of head, throat, under parts, inner side of 



