NO. 1436. MACACA NEMESTRINA MONKEYS— M I LI.KR. 559 



SpeciiiK'Hx e,i'(nnined. — Three, the type in the rnited States National 

 Museum, and two specimens in the British Museiun. 



Reiinii'l's. —This species is readily distinguishable from Macava 

 )ienu^st)-t)ia by its much broadened and deepened skull. 



MACACA ADUSTA, new species. 



Ti/j>e specline')}. — Adult male (skin and skull). No. 124023, United 

 States National Museum. Collected at Champanii-. Tenasserim, Decem- 

 ber 22, 1903, by Dr. W; L. Abbott. Orioinal number, 2929. 



(reographiv dlsfr!hi(ti<nt. — Malay Peninsula. Limits of rang'e un- 

 known. 



(Tenci'alcJKd-iU'ti'i'x. — Like Macaca neinedrhia, but with hairs of back, 

 underparts, arms, and leo-s distinctly annulated, median area of back 

 very slightly darkened, and canines of males iiuich less enlarged; 

 least distance from orbit to gnathion conspicuously greater than width 

 of rostrum at base of zygomata. 



Color. — The groun<l color of neck, shoulders, anrl back is a ))rig-ht 

 russet, everywhere distinctly speckled by blackish aiuuilations about 

 3 mm. in length, of whicli there are from three to five to a hair, accord- 

 ing as the fur is longer or shorter. Li lumbar region and on upper- 

 most part of thighs the russet fades abruptly to a light ochraceous- 

 buff, which becomes clear and unspeckled in area near callosities, form- 

 ing a noticeable contrast with surrounding parts. Crown blackish. A 

 faint, narrow, blackish shade along- middle of back. Tail as in Macaca 

 nemestrma, l)ut its dark upper surface strongly contrasted with back. 

 Underparts a light, indefinite drabby gray, distinctly darkened and 

 grizzled across belly. Arms and legs grizzled blackish and drabby 

 grav, with a very slight sutfusion of russet, their color noticeably con- 

 trasted with that of back. Feet and hands slightly darker than arms 

 and Ieg"s. 



SkvU and teeth. — The skull (Plate XIV, fig. 2) is less elongate than 

 that of Afacaca nemestri'na, but not as widened as that of J/, hnn-a. 

 Bony palate, less arched than in the Sumatran animal. The teeth 

 differ from those of Macaca nernestrlna in the much less enlargement 

 of the canines in the male, the diameter of the upper tooth at alveolus 

 being about equal to length of crown of posterior molar. The anterior 

 lower premolar has the same peculiarity. 



Meaiiiu'eraent^. — For measurements, see tables, pages 561-562. 



Specimens examined. — Four, from the following- localities in Tenas- 

 .serim: Red Point, 1; Champang, 2; Telok Besar, 1. 



Proc. N. M. vol. xxix— 05 37 



