188 SENIOCEBUS 



Seniocebus meticulosus Elliot. 



Seniocebus meticulosus Elliot, Bull. Am. Mus. Nat. Hist., N. Y., 

 1912, p. 31. 



Type locality. River San Jorge, Northern Colombia. Type in 

 American Museum of Natural History, New York. 



Genl. Char. Head and ears naked ; no orange rufous on under 

 parts; rump, root of tail and thighs bright bay. 



Color. Male. Face and forehead covered with short white hairs; 

 top of head and nape covered with very long white hairs, forming a high 

 crest on the head and flowing over the back between the shoulders; 

 rest of head, ears and throat naked, black; upper parts to rump dark 

 drab ; flanks paler, the hairs on the latter as well as those between the 

 shoulders tipped with white ; hairs on upper arms and shoulders from 

 roots bright bay, with terminal third drab and tips white ; thighs, rump 

 at root of tail, and hind side of legs bright bay; rest of legs, arms, 

 inner side of limbs, entire under parts silvery white; hands and feet 

 grayish white; tail above bright bay on basal third, the same color 

 extending for half the length on under side, remainder jet black. Ex 

 type American Museum of Natural History, New York. 



Measurements. Total length, 660.5 mm ; tail, 400 ; foot, 80. Skull : 

 total length, 49 ; occipito-nasal length, 46.2 ; Hensel, 30.3 ; zygomatic 

 width, 32; palatal length, 14.4; intertemporal width, 23.1; median 

 length of nasals, 60.7 ; length of upper molar series, 90.5 ; length of 

 mandible, 30; length of lower molar series, 12. Ex type American 

 Museum of Natural History, New York. 



Female. Resembles the male, except there is very little of the 

 bright bay color on the shoulders and rump, while the thighs are 

 colored like the upper parts, dark drab, the hairs tipped with bay. Tail 

 like that of the male. 



Two examples of this handsome little monkey, the third species 

 known of the genus, were received at the American Museum of Natural 

 History in New York from Mrs. E. L. Kerr, Cartagena, collected in 

 the forest on the River San Jorge, Colombia. While bearing in some 

 of its coloration a resemblance to the species known for so long a time 

 from Brazil, S. bicolor, its bright bay rump and thighs, pure silvery 

 white under parts and inner side of limbs, and grayish white hands 

 and feet cause it to differ in a conspicuous manner from its relative. 

 The lately described S. martinsi (Thomas), is the third known species 

 of the genus. 



