Type.—Adult male (skin and skull) No. 155, 156. U.S. Museum. Collected 
at Chén-yiian Hsien, 70 miles west of Ch’ing-yang Fu, Kansu, China. 
August 4th, 1909, by Mr. Sowerby. 
Original number 246. 
Diagnosis.—In general, like the European Eftesicus serotinus, but colour 
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 in mm.—Type: head and body, 70; tail, 50; tibia, 22 ; foot, 13°8 ; 
forearm, 49; thumb, 10°6; third finger, go; fifth finger, 65; ear, 19; 
Skull: condylo-basal length, 19'°0; zygomatic breadth, 14°0; interorbital 
constriction, 4°6; breadth of brain case, 9°6; mandible, 15; maxillary 
tooth-row, exclusive of incisors, 7°2; mandibular tooth-row, exclusive of 
incisors, 8'2. 
Specimens examtned.—Four, from the following localities: Chén-yiian Hsien, 
70 miles west of Ch’ing-yang Fu, Kansu (altitude 4000 feet), 1; 18 miles 
east of Ku-yiian Chou, Kansu (altitude 5300 feet), 1; 80 miles south-west 
of Yen-an Fu, Shensi (altitude 3500 feet), 2. 
All shot flying round camp at dusk in loess country. 
2. Pipistrellus sp. 
$ 245. 60 miles east of Ku-yiian Chou, Kansu. Alt. 4500 ft. August 
3rd, 1909. 
An immature individual, too young to be positively identified. 
Shot on bank of river under loess cliff at dusk. 
3- Scaptochirus gillesei, Thomas. 
@ ror. Yii-lin Fu, North Shensi, on border of Ordos Desert. Alt. 
3000 ft. November 8th, 1908. 
This mole is somewhat rare and one would hardly expect to find it in 
so dry and sandy a country as the vicinity of Yii-lin Fu and the Ordos 
Desert. 
It has since been recorded from the plain of Wu-chai in North- 
Western Shansi ; also a dry and sandy locality. It has also been recorded 
from T’ai-yiian Fu, North Central Shansi; while the type locality is 
Southern Shansi. 
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