THE GUENONS. 8 1 



its white peaked beard 'of formal cut,' give a singular aspect 

 to its physiognomy. This latter ornament it has been ob- 

 served, so Mr. Ogilby states, to be solicitous in keeping neat 

 and clean ; when about to drink it takes the beard in its hand 

 with amazing gravity, and holds it back in order to prevent it 

 from dipping into the fluid." 



XXXVIII. THE PALATINE GUENON. CERCOPITHECUS 

 PALATINUS. 



Le Roloway ou la Fa/afi?ie, Buif., Hist. Nat. Suppl., xv., p. 77 



^1789). 

 Cercopithecus roloivay, Erxleb., Syst. Regn. An., p. 42 (1777); 



Geoifr., Diet. Hist. Nat, iii., p. 304 (1849) ; Fisch., Synop. 



Mamm., p. 20 (1829). 

 Cercopithecus palatmus, Wagner, in Schreb. Saugeth. Suppl., 



v., p. 47 (1855); Scl., P. Z. S., 1893, p. 257. 

 Cercopithecus diana. Gray, Cat, Monkeys Brit. Mus , p. 22 



(1870; pt.); Schl., Mus. Fays-Bas, vii., p. 92 (1876; pt.). 



Characters. — Very similar to C. diana, but differs in having 



the back very dark brown, nearly black, instead of chestnut ; 



the head, flanks, thighs, limbs dark grey ; where the belly in 



C. diana is black, in C. palati?ms it is white. 



Distribution. — Gold Coast. 



XXXIX. DE BRAZZA's GUENON. CERCOPITHECUS ERAZZ.^. 

 {P,ale XXXI.) 

 Cercopithecus brazzce, Milne-Edwards, Rev. Sc. (3), xii., p. 15 

 (1886); Sclater, P. Z. S., 1893 pp. 255 443, pi. 

 xxxiii. 

 Characters. — Top of head, back, sides of face, outside of 

 thighs, and root of tail pale fulvous, densely ringed with 

 black ; a frontal band, of dense erect hairs, chestnut, white- 



3— V. 2 G 



