Vol. XXIV, pp. 53-56 February 24, 1911 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



FOUR NEW CHINESE MAMMALS. 



BY GERRIT S. MILLER, JR. 

 [By permission of the Secretary of the Smithsonian Institution. 



Among some Chinese mammals collected by Mr. Arthur deC. 

 Sowerby and presented to the Tinted States National Museum 

 are representatives of four that have not hitherto been described. 

 They were taken in the provinces of Kansu and Shansi, north- 

 west China. 



Eptesicus serotinus pallens subsp. nov. 



Type. — Adult male (skin and skull ) No. [55, L56,U. 8. National Museum. 

 Collected at Ch'eng-yuamhsien, 70 miles west of Ch'ing-yang-fu, Kansu, 

 China, August 4, 1909, by Arthur de ('. Sowerby. Original number 246. 



Diagnosis. — In general like the European Eptesicus serotinus serotinus 

 hut color somewhat less dark, particularly below, the contrast between 

 that of dorsal and ventral surfaces evident enough to produce a slight line 

 of demarcation along side of neck ; forearm shorter than in true serotinus ; 

 skull tending to be rather short and broad. 



Measurements. — Type: head and body, 70; tail, 50; tibia, 22; foot, 

 13. 8; forearm, 40; thumb, 10.(5; third finger, Oil; fifth finger, 65; ear, 10. 

 Skull : condylobasal length, 10.0; zygomatic breadth, 14.0; interorbital 

 constriction, 4.0; breadth of braincase, 9.6; mandible, 15; maxillary 

 toothrow exclusive of incisors, 7.2; mandibular tooth row exclusive of 

 incisors, 8.2. 



Specimens examined. — Four, from the following localities: Ch'eng-yuan- 

 hsien, 70 miles west of Ch'ing-yang-fu, Kansu (altitude 4,000 feet), 1 ; 18 

 miles east of Ku-yuan-chow, Kansu (altitude 5,300 feet), 1; 80 miles 

 southwest of Yen-an-fu, Shensi (altitude 3,500 feet), 2. 



Microtus pul Ins sp. nov. 



Type. — Adult male (skin and skull) No. 155,047, U.S. National Museum. 

 Collected at Chiao Ch'eng Shan, 00 miles west of Tai Yuan Fu, Shansi, 

 China (altitude 7,000 feet), October 11, L908, by Arthur de C. Sowerby. 

 Original number 32. 



14— Proc. Biol. Soc. Wash., Vol. XXIX, 1911. (53) 



