PITH ECUS 239 



PiTHECUS SIRHASSENENSIS Elliot. 



Pithecus sirhassenensis Elliot, Proc. U. S. Nat. Mus., XXXVIII, 

 1910, p. 345. 



SIRHASSEN ISLAND MACAQUE. 



Type locality. Sirhassen Island, Natuna Islands. Type in 

 United States National Museum. 



Genl. Char. General hue very dark ; limbs and feet paler. Skull 

 in general character nearest to P. lingungensis, but tooth rows much 

 shorter. 



Color. Top of head, upper parts and sides of body, and outer 

 side of thighs blackish brown and ochraceous, the hairs gray at base 

 then banded with ochraceous and black and tips black; limbs, hands 

 and feet pale gray, hairs banded with cream buff; under parts and 

 inner side of limbs grayish white; tail above at base blackish, hairs 

 ringed with ochraceous, grading into smoke gray for remaining part, 

 beneath smoke gray. Ex type United States National Museum. 



Measurements. Total length, 1,110; tail, 600. Skull : total length, 

 113.3; breadth of braincase, 54; intertemporal width, 40.5; palatal 

 length, 47 ; median length of nasals, 27 ; length of upper molar series, 

 27.6 ; length of mandible, 77.7 ; length of lower molar series, 35.5. Ex 

 type United States National Museum. 



This species, from the island in the southern part of the Natuna 

 Group, is very dark in color, differing greatly from the other Macaques 

 from the rest of these islands. 



The skull resembles more nearly that of P. lingungensis from 

 Lingung Island, near to Natuna, but the length of the tooth row is much 

 less, the palate is wider, and the braincase broader. One example 

 only was obtained. 



Pithecus vitiis Elliot. 



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

 346. 



MERGUI MACAQUE. 



Type locality. Domel Island, Mergui Archipelago. Type in 

 United States National Museum. 



Geogr. Distr. Domel, St. Matthew and Sullivan Islands, Mergui 

 Archipelago. 



Genl. Char. Hair long, loose ; hands and feet yellowish gray. 



Color. General color of top of head and upper parts, wood brown, 

 darkest on dorsal line, and lighter on sides, the hairs being gray at 

 base, banded with black and yellow ; arms and hands similar to back ; 



