556 I'ROCEKDLSCS OF THE AATIOXAL MVSEUM. vol. xxi.x. 



MACACA NEMESTRINA (Linnaeus). 



1766. [»S'/»ua] nemestriau Linn.eis, Synt. Nat., I, 12tli ed., p. 35 (»Sumatra). 

 1822. Simia carpolcgns Raffles, Trans. Linn. Soc. London, XIII, p. 243 (Ben- 

 coolen, Sumatra). 



Type local It y. — Sumatra. 



GeograpJi'iG dtxtrHxidon. — So far as is at present known this spe- 

 cies is confined to the island of Sumatra, where it appears to be ver}^ 

 general!}^ distributed. •^ 



General c/taracters. — A large animal with greatest length of skull 

 130 mm. or more in females, 140-160 nnn. in males; zygomatic breadth 

 of skull scarcely or not greater tiian distance from lower rim of ()rl)it 

 to most posterior point of occiput; fur nowhere distinctly grizzled; a 

 noticeable blackish median dorsal area. 



Color. — General color a light, dull, russet or wood-brown, fading 

 to ecru-drab on underparts and inner surface of limbs, and becoming 

 blackish on crown, neck, and median area of back. Across shoulders 

 the blackish and brown are distinctly mingled, though without pro- 

 ducing any grizzled eti'ect. Long hairs beneath and in front of ear 

 blackish at tip. Tail sharply bicolor," blackish above, dull ochraceous- 

 buff below. Hands and feet not darkei- than arms and legs. Through- 

 out the brown area of the Ijody and limbs the fur is ecru-drab beneath 

 surface, this color appearing when hairs ai'e disarranged, particularh' 

 on sides of body, on lower half of legs, and on hairy portions of but- 

 tocks, though nowhere producing contrasted lighter areas. Many of 

 the hairs on arms and legs are dark-tipped, but this is onl}' noticeable 

 on close inspection. 



Shull and teeth. — Skull (Plate XV, tig. 1) rather elongate, the zygo- 

 matic breadth about equal to distance from anterior rim of orbit to 

 most posterior point of occiput, the least distance from orbit to 

 gnathion distinctly greater than breadth of rostrum at anterior base 

 of zygomata; brain case low, the depth from posterior point of frontal 

 to lower edge of occipital condyle very noticeably less than width 

 above posterior base of zygomata; palate highW arched. Canine 

 teeth very large, the greatest diameter of the upper tooth at alveolus 

 about one and oiu'-half times length of crown of third moJar; cheek 

 teeth not peculiar in form, but their size relatively somewhat less than 

 in the other species. 



Measurements. — See tables, pages .5*)l-r)()2. 



Specimens examined. — Eight, from the following localities: Kateman 

 River, east Sumatra, 4; Tapanuli Bay, west Sumatra, 2; Tainissan Bay, 

 west Sumatra, 2. 



