Allen — Mammals from Yunnan and Tonkin. 17'J 



hairs become tricolor, ochraceous-buff at the base, followed by a broad 

 black band, and succeeded l>y a long white tip, so as to produce a some- 

 what barred effect with a white fringe. Below, the central area of the 

 tail except at the very base, is cream buff, bordered by black and fringed 

 with white, thus differing markedly from I), pernyi in which the long 

 white-tipped hairs cover the greater part of the lower side. 



Skull. — Compared with a scries of skulls of typical pernyi from Szech- 

 wan in the collection of the Museum, that of the new race is decidedly 

 smaller and with apparently shorter nasals. 



Measurements. — The skin of the type hears the following measurements 

 made by the collector: head and body, 1<>4 mm.; tail, 126; hind foot, 

 38; car, 24. The skull, which unfortunately lacks the condylar portion, 

 measure-: occipito-nasal length, 47.5; nasals, Hi; fronto-parietal suture 

 to tip of nasals, 36; least interorbital width, 14; zygomatic breadth, 23; 

 diastema, 1 1 : upper cheek teeth, !t. 



Rhinopithecus avunculus Dollman. 



In the Proceedings of the Zoological .Society of London, L912, part 2, 

 p. 503, Mr. Guy Dollman has lately described a fourth species of the 

 remarkable snub-nosed monkeys of eastern Asia. The type was an adult 

 female from Yen-bay, Tonkin, and the specimen was accompanied by a 

 young animal. The coloration is described as in general, "with dorsal 

 surface of body black and underparts yellowish huff." This style of col- 

 oring more nearly resembles that of A', roxellanae than of A', bieti, and 

 the skull likewise is more as in the former species. 



The Museum of Comparative Zoology has just acquired a skin and 

 skull of this fine monkey, representing an adult male, from Tonkin, 

 probably near the type locality. The coloration is slightly different from 

 that described for the type, in which the entire ventral surface of the 

 body is yellowish buff, extending down on the inner sides of the legs to 

 the hands and feet. In this male specimen, however, the " yellowish 

 hull" i- reduced to a collar, encircling the throat, except tor the black 

 dorsal area of the neck. The chin, cheeks, chest, belly and inner sides 

 of the limbs are whiU with a scattering of long black hairs. A very faint 

 bllffy wash may be seen on the chest and arms, but this is hardly 

 noticeable. 



The measurements of this adult male considerably exceed those of the 

 adult female as given by Dollman. J have appended therefore the col- 

 lector's measurements of the male, together with the cranial measure- 

 ments, and in parentheses after each, the corresponding dimensions as 

 given for the type. Head and body, 1420 mm. (520); tail, 860 (660); bind 

 foot [from dry skin], 199 (165) ; ear, 43 (40). Skull: greatest length, 

 1 -'■» < 109); basilar length, 83 (68); zygomatic breadth, 96 (77); greatest 

 breadth across orbital region, 87.5 (72.5); greatest diameter of orbit, 30 

 (28); interorbital constriction, 17. (11); greatest width of cranium, 79 

 (Us.:;); palatilar length, 42 (32.9); width of palate inside m 1 ,24(20.5); 

 length of upper toothrow from front of first premolar to back of last 

 molar, 31 (30). 



