PITHECUS 247 



upright over forehead, producing indistinct black lines on each side ; 

 nose covered with short grizzled black and white hairs; sides of face 

 buffy; on sides of head from below ears, and on cheeks are long 

 grayish hairs banded with white, projecting forward, forming bushy 

 whiskers ; outer side of arms and thighs iron gray, hairs banded with 

 cream buff ; legs below knees iron gray ; under parts and inner side of 

 limbs grayish white; hands and feet iron gray, speckled with cream 

 buff like limbs ; tail above black, sparsely speckled with white, beneath 

 silver gray. Ex type British Museum. 



Female. Upper parts russet, speckled with cream buff ; arms and 

 hands blackish, speckled with cream buff ; thighs like back ; legs olive 

 gray ; feet and toes black, covered with gray hairs ; tail like the male. 



Measurements. Total length, 964; tail, 508; foot, 117.5; ear, 29, 

 (Collector). Skull: total length, 105.5; occipito-nasal length, 85.5; 

 Hensel, 73.5 ; zygomatic width, 72.5 ; intertemporal width, 37.1 : width 

 of braincase, 54.9; length of orbital ridge, 45.4; greatest width of 

 rostrum, 38.5 ; length of rostrum, 38.5 ; median length of nasals, 24.4 ; 

 palatal length, 44.6; length of upper tooth row, 26.7; length of man- 

 dible 80.8; length of lower tooth row, 35; size of last lower molar, 

 .89 X .68. Ex type British Museum. 



There is a great difference in the coloring of the sexes, the female 

 being much lighter and redder, and this difference is exhibited in very 

 young males which are as dark as the adult males ; a coloration quite 

 dissimilar from that of the females. This species appears to be also an 

 inhabitant of the neighboring island of Batam. There are only females 

 unfortunately from that island in the collection, and they closely 

 resemble in color examples of the same sex from Batam. Of course, 

 when adult males are procured cranial characters and difference of 

 coloring may be discovered, but with the present material only avail- 

 able, the examples from the two islands must be regarded as belonging 

 to the same species. This is a very dark and handsome Macaque, 

 closely allied in general appearance to the species from Singapore 

 Island, although there are some differences in color on the crown of the 

 head and on the legs. But the skulls are not alike and the size of the 

 teeth differs, especially the upper incisors which are much smaller m P. 

 BiNTANGENSis, and in the straight tooth rows. The other cranial 

 differences are mentioned above. Specimens were obtained on the 

 northern coast of Bintang Island at Sanjang, Tanjang Sau, Tomback, 

 Pasir Panjang, and Sungei Boru whence the type specimen came. 



