PITH ECUS 227 



nasals, 24.8; length of upper molar series, 36.1; length of mandible, 

 79 ; length of lower molar series, 33. Ex type British Museum. 



This Macaque exhibits an entirely differently colored pelage from 

 the Singapore species, and one much nearer to the Karimon and 

 Sumatra forms, while the skull is nearer in its characters to the Singa- 

 pore Macaque than to those species living on the neighboring islands. 

 It is a reddish brown animal, duller in hue than either the Karimon 

 or Sumatra Macaques. The affinities of the monkeys from these 

 various islands is rather difficult to understand, and why their coloring 

 should be similar in Koendoer and the islands to the south as far as 

 Sumatra, and the cranial characters should be nearly alike with the 

 Singapore species, separated as it is by intervening islands, inhabited 

 by an allied but different form. It would be practically useless to 

 theorize upon this condition of things ; but the animals are probably in 

 a process of change influenced by their insular habitats, though as these 

 islands are but short distances apart, it is difficult to appreciate how 

 great such influences may be. At present we only know that differ- 

 ences do exist of such importance as to compel us to regard the 

 individuals from various islands as possessing characters so unrecon- 

 cilable as to prevent us from considering them all as belonging to one 

 species. 



PiTHECUS KAB.IMONI Elliot. 



Pithecus karimoni Elliot, Ann. Mag. Nat. Hist., IV, 8th Ser., 

 1909, p. 254. 



Type locality. Monos, eastern coast of the Island of Karimon. 

 Type in British Museum. 



Genl. Char. Similar in color to P. fascicularis of Sumatra, and 

 skull characters nearer to the skull of that species than to either of 

 those of the species from Koendoer or Singapore, its nearer neighbors. 

 Facial portion of skull shorter than braincase ; teeth large ; tooth rows 

 very slightly curved ; second and third molars much larger than first 

 in both upper and lower rows ; orbital ridge broad and long ; rostrum 

 short and broad ; braincase broad and rounded. Pelage moderately 

 long, smooth; tail about equal in length to body. Forehead above 

 eyes to hair flesh color. 



Color. Male. General hue tawny ochraceous, reddest on head 

 and neck, dorsal regions darkest and becoming more yellow on the 

 sides ; the hairs on back being purplish gray at base, then banded with 

 tawny ochraceous and black, and the hairs on sides yellowish gray 

 banded with white : outer side of arms grizzled gray, hairs being gray 



