350 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.38. 



Tliis is a reddish lined macaque with a long, loose coat of hair and 

 a long tail, not very much like any of the other species. It varies in 

 coloration, lor another male taken on the same day, July 23, has none 

 of the reddish hue so strongly exhibited by the type, and is more of 

 a dark-brown hue, with a yellowish tinge. The limbs and tail are 

 also much lighter. The skull is short and broad for its length; palate 

 broad and the tooth rows slightly curved; teeth rather large, last 

 premolar and molars each with four cusps; teeth of lower molar 

 series smaller than those in the upper. 



PITHECUS IMPUDENS, new species. 



Type-locality. — Pulo Sugi, Rhio Archipelago. 



Type. Cat. No. 115675, U.S.N.M. 



General charact(ri,stic,s.~S[/.c medium, tail very long. Skull with 

 rostrum narrow anteriorly; incisors very small; posterior edge of 

 last molar not reaching palatal arch; tooth rows curved; nasals com- 

 paratively long, broad anteriorly; tail longer than head and body. 



(Olor. — Space above eyes bare, flesh color, face covered with short 

 white hairs; narrow black hairs on forehead; top of head and 

 upper parts ochraceous and black, the hairs annulated with these 

 colors and gray at base ; outer side of thighs similar to back but paler; 

 Banks grayish; arms and hands dark brownish gray and bull': legs 

 smoke gray; feet similar with a yellowish tinge; under parts and 

 inner side of limbs whitish: tail above blackish on basal half, smoke 

 gray on remainder, beneath yellowish white. 



Measurements. — Total length. 962 nun.; tail, 522; skull, total 

 length. Hi'.).;;; occipito-nasal length, 92.6; hensel, 73.4; intertemporal 

 width, 38; zygomatic width, 72.6; palatal length, 42.7; median 

 length of nasals. 26.7; length of upper molar series, 27.1; length of 

 mandible. 77.!): length of lower molar series, 34.1. 



PITHECUS CAPITALIS, new species. 



Type-locality. Trong, Lower Siam. 



Type. Cat. No. 83271, U.S.N.M. 



Geographical distribution. Lower Siam and Telibon Island. 



General characteristics. Nearest to P. fascicularis with gray hands 

 and feet, but without the reddish hue on head and neck. Skull 

 much larger and verj different in character. 



Top uf head and entire upper parts yellowish brown, the 

 hair- gray at base, then banded with dark brown and yellow; limb-. 

 hands, and feet grayish brown; inner side of limbs yellowish; tail 

 above dark grayish brown, beneath yellowish white. 



Measurements. Total length. 1,143 mm.: tail. f>:;:.; skull, total 

 length, \S\: occi^to-nasal length. 103.7; intertemporal width. 15; 

 hensel, s:.7 : zygomatic width. 89.8; palatal length, 53.5; median 



