86 PYVGATHRIX 
portion to tip; chin, throat and abdomen white; rest of under parts, 
chest and inner side of sae dark drab gray. Ex type British Mu- 
seum, 311 
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. 
9—2 J—1 2—2 3—3 i 
I. 223 C..2= o8- teatvoM. eaaake 
Size large; crest small or absent ; pelage plain or varied in color. | 
PYGATHRIX ENTELLUS (Dufrésne). 
L’Entelle Audeb., Hist. Nat. Singes et Makis, 1797, Fam. IV, Sec. 
Il, tiger. 
Simia entellus Dufrés., Bull. Soc. Philom., I, 1797, p. 49; Id. Mag. 
Encyclop., IV, 1797: F. Cuv., Dict. Scien. Nat., XX, 1821, 
p: 33: ; 
Cercopithecus entellus Latr., Hist. Nat. Buff., XXXVI, 1309, p. 
283; Id. Nouv. Dict. Hist. Nat., XV, 1817, p. 581; Kuhl, 
Beitr. Zool., 1820, p. 12; Desm., Mamm., 1820, p. 59. 
Semnopithecus entellus Desmoul., Dict. 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 Lecon; 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., Bélang., Voy., Zool., 1834, p. 38; 
Waterh., Cat. Mamm. Mus. Zool. Soc. Lond., 1838, p. 4; 
Martin, Charlesw., Mag. Nat. Hist., II, 1838, p. 435; Jd. 
Mammif. Anim., 1841, p. 461; Wagn., Schreb., Saugth. 
Suppl., I, 1840, p. 99; pl. XXII B; V, 1855, p. 32; Less., 
Spec. Mamm., 1840, p. 56; Schinz, Syn. Mamm., I, 1840, p. 
