244 PITHECUS 



DARK-TAILED MACAQUE. 



Type locality. Siaba Bay, Nias Island, N. W. of Sumatra. Type 

 in United States National Museum. 



Genl. Char. Similar to P. irus but darker. 



Color. Crown, upper parts, and sides, tawny ochraceous and 

 black ; outer surface of limbs like body, but arms tinged with gray ; 

 forehead sprinkled with black ; cheeks buffy gray and black grizzled ; 

 sides of neck and under parts pale ecru drab ; tail above, black, beneath 

 ecru drab ; hands like outer side of arms, and feet like legs. Ex type 

 United States National Museum. 



Measurements. Total length, 940; tail, 480; foot, 130. Skull: 

 total length, 113.9; occipito-nasal length, 94.4; Hensel, 81.5; zygo- 

 matic breadth, 76.7 ; width of braincase above zygomata, 56 ; palatal 

 length, 48 ; median length of nasals, 27 ; length of upper molar series, 

 27.9; length of mandible, 83.3; length of lower molar series, 34.8. Ex 

 type United States National Museum. 



PiTHECUS LAPSUS Elliot. 



Pithecus lapsus Elliot, Proc. U. S. Nat. Mus., XXXVIII, 1910, p. 

 343. 



Macaco phaura (nee Miller), Lyon, Proc. U. S. Nat. Mus., 

 XXXI, 1906, p. 606. 



Type locality. Island of Banka, east of southern Sumatra. Type 

 in United States National Museum. 



Geogr. Distr. Islands of Banka and Billiton. 



Genl. Char. Similar to P. ph-eurus but much darker in color; 

 rostrum shorter, narrower ; premaxillae protruding, lengthened. 



Color. Frontal streak, black, conspicuous, broader than in P. 

 PH^URUs; top of head, upper parts of body, and outer side of arms 

 and thighs, with hairs pale drab at base, and annulated on apical 

 half with black and tawny ochraceous ; legs below knees gray with buff 

 tips to the hairs; cheeks, under parts and inner side of limbs, buffy 

 smoke gray ; hands similar to outer side of arms ; feet yellowish gray ; 

 tail blackish at base above, grading into gray at tip, beneath smoky 

 gray. Ex type United States National Museum. 



Measurements. Total length, 955; tail. 520; foot, 124, (Col- 

 lector). Skull: total length, 110.8; occipito-nasal length, 94.7; Hensel, 

 80.2; zygomatic width, 76.2; intertemporal width, 37.5; palatal length, 

 43.7; median length of nasals, 27.7; length of upper molar series, 28; 

 length of mandible, 83 ; length of lower molar series, 36.3. Ex type 

 United States National Museum. 



