1893.] MOXKErs oi" the gen^us cercopithecus. 251 



is not uncommon in captivity ; we have had some 25 specimens of 

 it since 1860. 



19. Ceecopithbcus albigularis. 



SenDiopitheais"? albogidaris, Sykes, P. Z. S. 1831, p. 106. 



Cercojiithecus alhogidaris, Sykes, P. Z. S. 1832, p. 18 ; Martin, 

 M. An. p. 512 ; Eraser, Zool. Typ. pi. ii. (1848) ; Wagn. Siiug. 

 Suppl. V. p. 45 (1855); Gray, P.Z. S. 1868, p. 182; id. Cat. 

 Monk. B. M. p. 24 (1870) ; Schleg. Mus. P.-B. vii. p. 79 (1876) ; 

 Sch List Yert. (1883) p. 9 ; True, Pr.TJ.S. Nat. Mus. xv. p. 448 

 (Kihmanjaro). 



Hah. East Africa, Kihmanjaro {Abbott) : Gold Coast {Pel). 



Sykes's Monkey, as this species is commonly called, is also fre- 

 quently brought aUve to this country. We have had some 25 

 specimens in the Menagerie during the past thirty years. 



It belongs to the Mona group, but has no white thigh-patches, 

 and the rump is more or less rufous, 



Schlegel gives the localitj'- of this species as Gold Coast {Pel) ; 

 but it appears certainly to occur in East Africa, and it would be 

 desirable that specimens from these countries should be compared. 



20. Cercopithecus campbelli. 



Cercopithecus campbelli, Waterh. P. Z. S. 1838, p. 61 ; Eraser, 

 Zool. Typ. pi. iii. (1848) ; Martin, M. An. p. 544 ; Wagn. Saug. 

 Suppl. V. p. 47 (1855) ; Gray, P. Z. S. 1868, p. 182 ; id. Cat. Monk. 

 B. M. p. 24 (1870) ; Schleg. Mus. P.-B. vii. p. 81 (1876) ; Scl. 

 List Vert. (1883) p. 11 ; Jent. Notes L. M. x. p. 9 (Liberia). 



Cercopithecus burnetti, Gray, Ann. N. H. x. p. 256 (1842). 



Hub. West Africa: Gold Coast (P<^Z) ; Jjiheria{BiUtik.), common. 



Campbell's Monkey is by no means so common in captivity as 

 the two preceding species. AYe have had, so far as oiu' modern 

 registers go, only eight examples of it. 



It is easily distiuguishable from C. cdbogularls by the black rump 

 and outer surface of the tliighs. It has a frontal baud like the 

 Mona, but tinged with rufous. 



21. Cercopithecus sailvngo. 



Cercopithecus samanr/o, Sundev. Ofvers. K. Vet.-Akad. Eorh. i. 

 p. 160 (1844) ; AVagn.'Saug. v. p. 44 (1855) ; Peters, P. Z. S. 1865, 

 p. 400 (Angola) ; id. Keise n. Moss., Siiug. p. 4 (luhambaae) ; 

 Gray, P. Z. S. 1868, p. 182; id. Cat. Monk. B. M. p. 24 (1870) ; 

 Schleg. Mus. P.-B. vii. p. 79 (1876); Scl. P. Z. S. 1888, p. 564. 



J fab. Natal ( Wahlhery) ; Mozambique {Peters) ; Angola ( Wel- 

 witsch). 



A single example of this scarce Monkey was acquired by the 

 Society in 1888 (see P. Z. S. l.s. c). It died June 4th, 1890. 1 

 nowexliibit its skin. 



Sch](!gol has united to this species C. lahialus, Gcoffr., but 1 can 

 see no traces of the white lips in our specimen, and am doubtful 

 about the identification. 



