54 PYGATHRIX 



Desmarest's type of S. albo-cinereus is not in the Museum, and to- 

 day it is impossible to identify his species. 



Flower, (1. c.) says "Cantor found this species most common in 

 Penang and Singapore, and that it also occurs on the Peninsula." It 

 is doubtful, however, he adds, "whether it does occur at Singapore at 

 the present time. In April, 1895," he continues, "I found this species 

 very common in Kedah, living in the highest trees along the banks 

 of the Kedah River and the tributaries, either solitary or in parties of 

 about half a dozen ; they were very active and wild. In the Botanical 

 Gardens, Penang, I have seen this species playing in the trees. On 

 Penang Hill I have occasionally seen Lutongs which appeared to belong 

 to this species; they are very shy, and it is difficult to see much of 

 them before they disappear among the jungle trees. In the Museum 

 at Taiping there are specimens from the Larut Hills, Perak. In April 

 1898 at about 3,500 feet elevation in the Larut Hills, I came on a 

 party of from 10 to 20 Semnopitheci of this, or a closely allied species." 



Pygatheix caebo (Thomas and Wroughton). 



Presbytis obscura carbo Thos. and Wrought., Ann. Mag. Nat. 

 Hist., IV, 8th Ser., 1909, p. 534. 



Type locality. Langkawi Island, Straits of Malacca. Type in 

 British Museum. 



Geogr. Distr. Terautau and Langkawi islands. Straits of Malacca. 



Genl. Char. Much darker than P. obscura. 



Color. Superciliary stripe and whiskers black ; fore part of head 

 blackish brown, rest of head and hind neck brownish gray ; upper parts 

 of body, arms, hands and feet black tinged with brown on dorsal 

 region, and on arms to elbows; legs from hips to ankles grayish 

 brown ; chin and under parts of body, and inner side of arms blackish 

 brown; inner side of legs dark gray; tail above slate gray, paler 

 beneath ; ears black. Ex type British Museum. 



Measurements. Total length, 1,380; tail, 800; foot, 125. Skull: 

 total length, 104.2; occipito-nasal length, 83.8; intertemporal width, 

 40.6; breadth of braincase, 57.1 ; median length of nasals, 13.9; palatal 

 length, 37.6; length of upper molar series, 26.6; length of mandible, 

 73.2; length of lower molar series, 35. Ex type British Museum. 



This island race while resembling P. obscura in its general style of 

 coloring is very much darker almost black in fact ; back varies only in 

 the parts mentioned above with a dark brown hue. 



Three specimens are in the British Museum from the islands 

 above named. 



