60 PYGATHRIX 



A specimen in the Calcutta Museum may be described as follows : 

 Top of head blackish brown, hairs radiating from a central point; 

 back of head and neck, and entire upper part of body and arms broc- 

 coli brown, lightest on occiput ; legs from knees to ankles broccoli 

 brown ; hands and feet blackish brown ; under parts, anal region and 

 thighs yellowish white; tail very long, bistre, being darker than back. 

 Hair on occiput forming a short pointed crest. 



Measurements. Total length, 1,420; tail, 910; foot, 155, (skin). 

 Skull : total length, 106.2 ; occipito-nasal length, 86.4 ; intertemporal 

 width, 39.2 ; breadth of braincase, 56.6 ; Hensel, 38 ; zygomatic width, 

 74.6 ; median length of nasals, 10.7 ; palatal length, 38.7 ; length of 

 upper canines, 18.7 ; length of upper molar series, 26.7 ; length of 

 mandible, 75.2; length of lower molar series, 35. Ex specimen from 

 Takamen, Siam, in British Museum. 



Pygatheix CATEMANA (Lyon). 



Presbytis catemana Lyon, Proc. U. S. Nat. Mus., XXXIV, 1908, 

 p' 672. 



Type locality. Kateman River, Eastern Sumatra. Type in United 

 States National Museum. 



Color. Exactly like P. cana, but patch on thigh is grayish and 

 does not go to side of rump. Ex type United States National Museum. 



Measurements. Total length, 1,200; tail, 740; foot, 175. Skull: 

 total length, 89.1; occipito-nasal length, 77.7; zygomatic width, 68.3; 

 Hensel, 60.4 ; intertemporal width, 46.8 ; palatal length, 27 ; median 

 length of nasals, .64 ; length of upper molar series, 23. Ex type United 

 States National Museum. 



Pygathrix aygula (Linnajus). 



Simia aygula Linn., Syst. Nat., I, 1758, p. 27; I, 1766, p. 39. 



Presbytis mitrata Esch., Kotzeb., Reise, 1821, p. 196, pi., figs. 1, 2, 

 3 ; Less., Man. Mamm., 1827, p. 44. 



Semnopithecus comatus Desm., Mamm., Suppl., 1822, p. 533 ; F. 

 Cuv., Hist. Nat. Mamm., 1825, pi. XHI; Desmoul., Diet. 

 Class. Hist. Nat., VII, 1825, p. 569; Less., Man. Mamm., 

 1827, p. 41; Temm., Mon. Mamm., I, 1827, p. 14; Desm., 

 Diet. Scien. Nat., XLVIII, 1827, p. 438; Griff., Anim. Kingd., 

 V, 1827, p. 10; Cuv., Regn. Anim., I, 1829, p. 94, (Part.); 

 Fisch., Syn. Mamm.. 1829, p. 16; I. Geoff., Belang., Voy., 

 Zool.. 1834, p. 40; Wagn., Schreb., Saugth. Suppl., I, 1840, 

 p. 87, pi. XXIV; V, 1855, p. 24; Less.. Spec. Mamm., 1840, 



