68 PYGATHAIX 
A specimen in the British Museum obtained from the Genoa 
Museum and procured by Dr. Modigliani in Sipora, Mettawee Islands, 
answers to the description of S. potenziani Bon., and is the same as 
S. chrysogaster Peters. The habitat of the species is therefore fixed. 
It has also been taken on South Pagi Island of the same group by 
Dr. Abbott, who sent a series of examples to the United States Na- 
tional Museum. 
PYGATHRIX FRANCOISI (Pousargues). 
Semmnopithecus francgoisi Pousarg., Bull. Mus. Hist. Nat. Paris, 
1898, p. 319. 
Type locality. Boundary of Tonkin and China. Type in Paris 
Museum. 
Genl. Char. Upright, lengthened, slender crest from middle of 
occiput ; body slender, limbs and tail long. 
Color. Band from angle of mouth across cheeks to ears, and hairs 
on top of ears white, entire rest of pelage, head, body, limbs, hands, 
feet and tail black. Ex type Paris Museum. 
Measurements. Total length, 1,231.9; tail, 748.7; foot, 139.7. 
Skull: total length, 97 ; occipito-nasal length, 83 ; Hensel, 64; zygomatic 
width, 76; intertemporal width, 48; palatal length, 28; breadth of 
braincase, 60; median length of nasals, 11; length of upper molar 
series, 26; length of mandible, 63; length of lower molar series, 31. Ex 
type Paris Museum. 
While resembling in some respects P. POTENZIANI, it differs from 
that species in having the under parts of the body black, no rufous 
appearing anywhere. Its habitat also, on the borders of Tonkin and 
China, is far removed from the Mettawee Islands where P. PoTENZIANI 
is found, for there is no proof that that species inhabits Tenasserim or 
any portion of the continent, being, so far as known, strictly an island 
species. 
Subgenus Presbypithecus. 
2—2 1—1 2—2 8—3 
I. 3-23 C. 113 P. 2—23 M. 3-3 — 32: 
Hair on head crested, sometimes radiating from a central point. 
Pelage brown or black. 
PYGATHRIX CEPHALOLOPTERA (Zimmermann). 
The Lion-tailed Monkey (B) Penn., Syn. Mamm., 1771, p. 109, 
pl. CVIII, fig. 2. 
