208 SOME CHINESE VERTEBRATES. 
OcHOTONA HUANGENSIS (Matschie). 
Professor Matschie (1908) has named as new a mouse-hare of the daurica 
group from the upper Yangtze, and to this species I have provisionally referred 
an immature specimen that evidently is of the same group. Its coloration above 
is a general dark gray, buffy behind the ears and on the neck, with a tuft of buffy 
hairs at the inner base of the ear. The vibrissae are unusually long, mostly 
whitish, and the pelage is very fluffy, almost woolly. It was taken at Yachiakun, 
in western Szechwan, at an altitude of 12,500 feet. 
OcHOTONA ERYTHROTIS (Biichner). 
Four specimens of this large species were taken at Nachuka, at altitudes 
between 10,000 and 12,000 feet, and a single one at Ramala Pass, 15,500 feet, all 
in western Szechwan, on the eastern borders of Tibet. The species is known from 
Kansu and from the Burchan Budda Mountains of northeastern Tibet, where 
it was obtained by the Prjewalski Expedition. The present records therefore 
extend its known range well to the southward. The measurements of the five 
adults, as taken by the collector, follow:— 
Hind 
No. Locality. Total Length. Tail. Foot. 
7587 Ramala Pass 191 7 35 
7588 Nachuka 165 6 34 
7589 Nachuka 204 7 35 
7590 Nachuka 203 7 35 
7591 Nachuka 215 6 35 
The skull of No. 7591 measures:— greatest length, 48.2 mm.; basal length, 
40.5; palatal length, 19; combined incisive and palatal foramina, 14; zygomatic 
breadth, 24.2; interorbital constriction, 5; mastoid breadth, 21.7; mandible 
from condyle to tip of incisor, 34.6; upper molar row, 9; lower molar row, 9. 
SPALACIDAE. 
RuizoMys vestitus Milne Edwards. 
Five specimens of this Bamboo rat were obtained at Washan, in western 
Szechwan, at from 8,000 to 9,000 feet altitude. The species was described by 
Milne Edwards on the basis of two immature examples sent by Pére David from 
the region of Kokonow, northeastern Tibet, some four hundred miles north of 
Washan. Our specimens seem to represent the same species, however, though 
the measurements differ slightly. Milne Edwards intimated that the dimensions 
Bi da I i 
