376 LASl OPYGA 



Subgenus 8. Pogonocebus. 



The members of this group are brightly colored, and noted for 

 having a white and buff diagonal stripe across the thighs from the root 

 of the tail. 



KEY TO THE SPECIES. 



A. Stripe across thighs. 



o. Ochraceous rufous band across forehead. 



a! Upper parts speckled tawny ochraceous and 



black L. neglecta. 



b.' Upper parts speckled white and black, tail 



black L. brazzcE. 



b. Black band across forehead succeeded by a white 

 one. 

 a.' Inner side of thighs and anal region bright 



bay L. diana. 



b.' Inner side of thighs and anal region white 



or pale orange L. roloway. 



LaSIOPYGA NEGLECTA (Schlcgel). 



Cercopithecus leucampyx (nee Fischer), Gray, Cat. Monkeys, 



Lemurs and Fruit-eating Bats, Brit. Mus., 1870, p. 22 ; ex 



White Nile. 

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



70; Giglioli, Zool. Anz., X, 1887, p. 510; Sclat., Proc. Zool. 



Soc. Lend., 1893, pp. 253, 443, (in text of C. brazz^) ; 



Forbes, Handb. Primates, II, 1894, p. 75 ; Thos., Proc. Zool. 



Soc. Lond., 1900, p. 801. '^ 



SCHLEGEVS GUENON. 



Type locality. White Nile. Locality unknown. Type in British 

 Museum. 



Geogr. Distr. White Nile, Africa. 



Color. Head and feet lacking. A black front band at end of the 

 flat skin, presumably hind portion of head; neck, shoulders and space 

 between, tawny, ochraceous and black, basal portion of hairs ochra- 

 ceous ; rest of upper parts, hairs brown and black, base of hairs gray ; 

 skin of throat wanting ; under parts ochraceous buff and black, growing 

 darker to middle of abdomen, which is brownish black ; arms apparently 

 black, only a small portion remaining; thighs seal brown on outer 



