CYNOPITHECUS 163 



regarded in any way as a specific character. A series of this species 

 in the Leyden Museum from Lembeh and Minahassa, show that the 

 young are brown on the back and shoulders varying in depth among 

 individuals ; belly, usually black. 



There are four examples in the Leyden Museum which, according 

 to Schlegel, served as types for Temminck's species. P. nigrescens, 

 three, Nos. 6, 8, and 9 from Gorontalo, and No. 7, from Toulabello. 

 Of these only No. 6 can be a type, as the others were only collected in 

 1864 by Rosenberg; and lastly No. 10, not mentioned by Schlegel as a 

 type. They are all immature. No. 9 being quite a baby, the other 

 three about three quarters grown. As is to be expected none of them 

 are black as the adult would be, but exhibit the brown coloring char- 

 acteristic of young animals of C. nicer, with the limbs, hands, feet 

 and top of head black. I can perceive no characters to distinguish 

 these examples from those of C. nicer of a similar age, and agree with 

 Schlegel, that they cannot be separated from that species. 



Description of C. hecki: 



Color. Head, neck and upper part of back, black, with a strong 

 reddish brown tinge, it might almost be called blackish brown ; upper 

 parts and sides black; arms blackish mars brown; legs dark wood 

 brown; under parts and under side of limbs, reddish brown, (dark 

 mars brown), callosities very large, lying across the buttocks, in shape 

 of a parallelogram. Ex type Berlin Museum. 



Measurements. Total length, 666. Skull : total length, 137 ; 

 occipito-nasal length, 118; Hensel, 95; zygomatic width, 91; inter- 

 temporal width, 46 ; median length of nasals, 41 ; length of upper molar 

 series, 31 ; length of mandible, 94; length of lower molar series, 42. 

 Ex type in Berlin Museum of C. hecki. The skull is a true Cynopithe- 

 cus but not so broad on the rostrum comparatively as that of C. nicer, 

 but it is more typical than many of the others. 



The type is a young animal and there are indications on both arms 

 and legs of a change from brown to the black of the adult; thus, the 

 black on the thighs has extended from the hips nearly half way to the 

 knees ; and on the feet, and especially on the inner side of the leg, the 

 black is beginning to appear. 



The description of C. hypomelas is as follows : 



Color. Head crested, with upper part of back reddish brown 

 almost black ; back and outer side of limbs, black tinged with brown ; 

 side of head Prout's brown ; under parts blackish brown ; inner side of 

 limbs reddish brown. 



