127 ■ — 



(Bonnevie), n" 3305; Mambaka (Christy) , n" 1562; Pili-pili 

 (Christy), n° 1561 ; Stanleyville to Bafwaboli (Christy), n" 1563; 

 Kinzi (Pii.ette), n° 1781". 



A great number of spécimens proves, that the dark grey iinder 

 the proximal portion of the tail is fairly constant. Spécimens from 

 the Ituri forest and Rutshuru are similar, althoiigh in both there 

 is a certain amount of variation. Thus soine hâve the rings of the 

 hairs on the head more vellow, others more ochraccous, some hâve 

 the hindlegs more grev, others more blackish ('). 



The black of the lower cheek-stripe is developed in a varions 

 degree in différent spécimens. A couple of spécimens from Masisi 

 bave it especially well marked and extending forward to the nose 

 spot, but it appears hardly probable that a separate race should 

 live there. The lower side of the proximal portion of the tail of 

 thèse spécimens is quite dark grey as in enkamer^ which they also 

 resemble in other respects. 



This race bas evidently a very wide distribution in the eastern 

 forest région of Belgian Congo. Lorenz (1 c. 1917) named spéci- 

 mens from Rutshuru as a separate subspecies C. s. rutsJiuricvs. (_^ 

 A comparison with a large séries as the one in the Congo Muséum 

 will easily prove, that the for rutshnricus quoted charateristics do 

 hot hold good. There are f. i. spécimens from localities within the 

 Ituri forest, which bave just as black limbs as spécimens from 

 Rutshuru etc. 



Cercopithecus cephus Lin. 



Luali (Beouaert), n° 2419"-'^; Sangha, n"" 3477-3480; Kakongo 

 (Cabra), n° 167; Bas-Congo Cataractes, n°' 16, 18. 



This monkey appears to be contined to the coastal région as the 

 two spécimens in the collection are from Luali. There are also 

 mounted spécimens from « Bas Congo ». 



C) ("f. also about the variation of this monlcey : Lônnbeeg, A". Vet. Akad. Handl.^ 

 vol. 58, n" 2, Stockholm, 1917. 



