558 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxix. 



MACACA BROCA, new species. 



1893. Macacus nemestriiiUK Hose, Mammals of Borneo, p. 6. {Not Simian emes- 

 trina Linna3us. ) 



Type specimen. — Adult male (skin and skull) No. |ff^^ United States 

 National Museum. Collected at Hapagaya River, northeast Borneo, 

 November 21, 1887, by C. F. Adams. 



Geographic distrihutlon. — Borneo. 



General c/iaracters. — Similar to M.acaca nemestrina^ but skull so 

 broadened that zygomatic breadth is considerably greater than distance 

 from lower rim of orbit to most posterior point of occiput. 



Color. — The color of the type is much like that of Macaca nem^estrina, 

 except that the brown areas have a dull, drabby cast. This dullness 

 may be due to the fact that the specimen was brought from Borneo 

 in an acid preservative Huid, which may have injured the color. There 

 is no distinct trace of annulation on any part of the fur. Dark dorsal 

 area well developed, extending from forehead to base of tail. In his 

 ' Mammals of Borneo ' Mr. Charles Hose describes the color of this 

 animal as follows: 



The general color is a decided olive, tending in some animals to Ijrown, the varia- 

 tion in color being due to the relative development of the yellov^f and black rings on 

 the hair. The rings occur on the exposed portion of the hair, the hidden part of 

 which is gray. The upper surface of the head, the mesial line of the back, and the 

 upjier surface of the tail near its base are deep brown or even blackish, more espe- 

 cially on -the head and over the hind quarters The extremities pale toward the 

 hands and feet, which are light olive brown. The outsides of the thighs have an 

 olive-gray tint. 8ome animals, however, especially the fully grown ones, are almost 

 uniformly colored deep olive brown, except on the l)lackish head and the middle 

 line of the back. The sides of the face and the under surfaces generally are grayish, 

 tending to white, but on the sides of the face the hair is washed with a dark, almost 

 blackish gray. The face is nude, of a dusky flesh color, which is the tint also per- 

 vading the ahnost naked ears and the callosities. 



From this it appears that there is some annulation of the hairs in 

 certain regions, but that it is slight and variable. It is not present to 

 any noticeable degree in any of the three skins that I have examined. 



Skull mid teeth. — The skull differs conspicuously from that "of 

 Macaca aeiiie>^ti'ma in its much greater relative breadth and depth. The 

 zygomatic breadth is conspicuously greater than the distance from ante- 

 rior rim of orl)it to most posterior point of occiput; the distance from 

 orbit to gnathion is not noticeablv greater than width of rostrum at 

 anterior base of zygomata, and the depth of })rain case fi-om posterior 

 point of frontal to lower edge of occipital condyle is nearly equal to 

 width above posterior roots of zygomata. Palate broader and less 

 highly arched than in N. nemestrina. Teeth as in the Sumati'an animal, 

 the canines similarly large. 



MeasnTemenU. — See tables, pages 561-562. 



