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: 



The skull of No. 7591 measures: greatest length, 48.2 mm.; basal length, 

 40.5; palatal length, 19; combined incisive and palatal foramina, 14 ; zygbmatic 

 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. 

 RHIZOMYS 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 Pere 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 



