ALLEN: MAMMALIA. 225 



EPIMYS ZAPPEYI, sp. nov. 



Type: Skin and skull No. 7607 M. C. Z., male adult, from Washan 

 Mountains, western Szechwan, China, at an altitude of 9,000 feet. October 26, 

 1908, Walter R. Zappey. 



General Characters: Resembling E. confucianus, but with darker face, 

 ears, and back, the ochraceous of the sides much richer and brighter, encroach- 

 ing more on the belly and extending on to the thighs and on the lower throat to 

 the axilla. Ventral surface pure white, without the faint sulphury suffusion. 

 Skull slightly smaller than that of E. confucianus with more slender rostrum and 

 zygomata, longer and narrower incisive foramina, narrower palate, and smaller, 

 more flattened bullae. 



Color: Muzzle and an ill-defined patch extending from the base of the 

 vibrissae to the ear, slate color; forehead and crown, nape, and a somewhat oval 

 mid-dorsal area a mixture of hairs mainly slate minutely tipped with ochraceous 

 buff, and longer hairs entirely black. The ochraceous buff tips in this area are 

 so restricted that the dark color predominates forming a darker and more pro- 

 nounced mid-dorsal area than in M. confucianus. Cheeks, sides of the neck, 

 upper surfaces of forearms, the flanks, inner sides of the thighs and lower legs, 

 and the anal region bright tawny ochraceous, only very slightly mixed with 

 scattering short black hairs. A small spot of the same color on the upper chest 

 medially between the fore legs. The color of the back and sides encroaches 

 farther on the belly than in M . confucianus and is sharply marked off from that 

 of the lower surfaces, which including the upper lips, chin, and throat, are clear 

 snowy white to the bases of the hairs, quite without the wash of sulphury found 

 in E. confucianus. Upper surface of fore and hind feet clove-brown medially, 

 the toes and borders white. Tail white ventrally and for the terminal third 

 dorsally, the proximal two thirds nearly clove-brown above, covered with minute 

 setae that become short hairs distally till they form finally a distinct pencil 

 about 6 mm. long. 



Skull: The skull of the type is evidently adult but not old; the teeth are 

 somewhat worn but the supraorbital ridges are not very strongly developed. 

 Compared with that of E. confucianus the rostrum and the zygomata are much 

 slenderer, the nasals narrower and more compressed laterally at their free end. 

 The incisive foramina are longer and narrower, not short and broadly expanded ; 

 the palate is narrower and the anterior end of the interpterygoid fossa scarcely 

 expanded. The audital bullae are conspicuously smaller and flatter. 



