86 PYGATHRIX 



portion to tip ; chin, throat and abdomen white ; rest of under parts, 

 chest and inner side of limbs dark drab gray. Ex type British Mu- 

 seum. 



Measurements. Total length, 1,250: tail, 800; foot, 150, (skin). 

 Skull : Total length, 90 ; occipito-nasal length, 88.5 ; intertemporal 

 width, 42.8 ; breadth of braincase, 55.7 ; Hensel, 59.6 ; zygomatic width, 

 67.2; median length of nasals, 10.2; palatal length, 25.7; length of 

 upper molar series, 25; length of upper canines, 15.3; length of man- 

 dible, 65.5; length of lower molar series, 31.1. Ex type British Mu- 

 seum. 



This species resembles P. crepuscula but is easily recognized 

 by its brown head and blackish brown hands and feet, and the lighter 

 more silvery hue of the fur. 



Subgenus Semnopithecus. 



•■• i^i ^- i—ii "• Jh^i -M.. 31:3 = 32- 



Size large ; crest small or absent ; pelage plain or varied in color. 



Pygatheix enteixus (Dufresne). 



L'Entelle Audeb., Hist. Nat. Singes et Makis, 1797, Fam. IV. Sec. 



11, fig. 2. 

 Simla cntellus Duf res., Bull. Soc. Philom., I, 1797, p. 49 ; Id. Mag. 



Encyclop., IV, 1797; F. Cuv., Diet. Scien. Nat., XX, 1821, 



p. 33. 

 Cercopithecus entellus Latr., Hist. Nat. Buff., XXXVI, 1809, p. 



283 ; Id. Nouv. Diet. Hist. Nat., XVJ 1817, p. 581 ; Kuhl, 



Beitr. ZooL, 1820, p. 12; Desm., Mamm., 1820, p. 59. 

 Semnopithecus entellus Desmoul., Diet. Class. Hist. Nat., VII, 



1825, p. 568; Less., Man. Mamm., 1827, p. 40; Griff., Anim. 



Kingd., V, 1827, p. 10 ; E. Geoff., Cours Hist. Nat. Mamm., 



1828, p. 10, 8me Legon; Cuv., Reg. Anim., I, 1829, p. 94; 



Fisch., Syn. Mamm., 1829, p. 14; Bennett, Gard. and Menag. 



Zool. Soc. Lond., I, 1831, p. 81 ; Sykes, Proc. Zool. Soc. Lond., 



1831, p. 199; I. Geoff., Belang., Voy., Zool., 1834, p. 38; 



Waterh., Cat. Mamm. Mus. Zool. Soc. Lond., 1838, p. 4; 



Martin, Charlesw., Mag. Nat. Hist., II, 1838, p. 435; Id. 



Mammif. Anim., 1841, p. 461 ; Wagn., Schreb., Saugth. 



Suppl., I, 1840, p. 99, pi. XXII B ; V, 1855, p. 32 ; Less., 



Spec. Mamm., 1840, p. 56; Schinz, Syn. Mamm., I, 1840, p. 



