PYGATHERIX 43 
hands and feet glossy jet black; sides of neck blackish, some hairs 
ringed with white; inner side of limbs grayish white; dark brownish 
gray bar across breast between shoulders, followed by a broader band 
of gray; belly black; anal region and inner sides of arms, grayish 
white; tail above black to tip, beneath white, covering all the tail at 
base, but growing into a narrow stripe as it proceeds to the tip. Hairs 
on sides of head and neck long and directed upward towards ears, 
while those on top of head are parted from the crest, and are directed 
backward. Some males are all black on under side of body, probably 
the result of mature age. Ex type Leyden Museum. 
Measurements. Total length, 1,260; tail, 800; foot, 160, (skin). 
Skull: total length, 89.1; occipito-nasal length, 78.8; intertemporal 
width, 46.6; Hensel, 47.6; zygomatic width, 66.1; breadth of brain- 
case, 55.3; median length of nasals, 11.8; length of upper canines, 
13.8; length of upper molar series, 21.8; length of mandible, 58.7; 
length of lower molar series, 25.7. Ex type Leyden Museum. 
This species has been considered a synonym of P. FEMORALIS 
by many writers, but it is quite distinct, and can readily be recognized 
by its jet black pelage, and white beneath the tail. The shape of the 
crest, and growth of hair on top of the head, is quite different from 
P. FEMORALIS. 
PYGATHRIX SUMATRANA (Miller and Schlegel). 
Semnopithecus sumatranus Mill. und Schleg., Verhandl. 
Geschied., V, 1839-44, p. 73, tab. X bis, fig. 1, g; Schinz, 
Syn. Mamm., I, 1844, p. 39; Horsf., Cat. Mamm. E. Ind. Co. 
Mus., 1851, p. 15; Wagn., Schreb., Saugth. Suppl., V, 1855, 
De 22 
Semnopithecus (Trachypithecus) sumatranus Reichenb., Voll- 
stand. Naturg. Affen, 1862, p. 90, figs. 207, 208. 
Type locality. Ophir Mountain? Sumatra. 
Genl. Char. Upper parts not black; bar across chest not brown. 
Color. Forehead black; crest, upper parts, flanks, and shoulders 
mummy brown darkest on dorsal region; outer side of arms, hands, 
legs and feet black; inner side of arms, narrowest on upper arms, 
gray, and on thighs yellowish white to knees, sometimes extending 
in slender line to ankles ; below knees sooty ; throat and chest blackish ; 
abdomen yellowish white ; tail beneath on basal half white, apical half, 
and all upper part jet black. 
Measurements. Total length, 1,270; tail, 760. Skull: total length, 
