AUT. 1 MAMMALS FROM CHINA HOWRLL 17 



PIPISTRELLUS TRALATITIUS ABRAMUS (Teraminck) 



VcispertUio abroinus Temminck. Monog. Mainm., vol. 2, 1835, p. 232 (Japau). 



jSpecim.ens.—Se\en : 5 from Tientsin and 2 from Peking, Chihli. 



The variation, especially in the skull, in typical material from 

 Japan is very great, and the north China pipistrelles of this type 

 evidently fall well within this range. 



PIPISTRELLUS PULVERATUS (Peters) 



Vesperugo pulveratus Peteks, Proc. Zool. Soc. London, 1870, p. GIS (Araoy, 

 Fukien, China). 



/Specimens. — Eighteen: Pingkiang, Hunan, 17; and Suifu, 

 Szechwan, 1. 



Both sexes of this grizzled, blackish pipistrelle are represented. 

 The forearm length of males is close to 33 and of females 36 mm. 

 The Suifu specimen can be identified only approximately, as there 

 are no measurements and the forearms and skull are both broken. 



PIPISTRELLUS species 



There are at hand eight Chinese specimens of this genus which are 

 not determinable at present. One, from Kuyuanchow, Kansu, is 

 somewhat of the P. savii type, although the skull is smaller. The 

 small upper premolar is very slender, long, and crowded, and it has 

 been suggested to me that this may be an unusually persistent milk 

 tooth, and that in reality it represents a very small species of Epte- 

 6-t'ous. It does not resemble any milk tooth of the latter genus that 

 I have examined and it hardly seems likely that such a milk tooth 

 would persist equally on both sides of an adult bat; and there is 

 nothing about the skin to indicate that it is not a pipistrelle. On 

 the other hand, with the present dearth of Siberian material, I am 

 unwilling to risk a specific identification of such a questionable 

 specimen. 



The remaining seven specimens are of small pipistrelles with fore- 

 arm about 30 mm. or less. Four of them are spirit specimens and 

 the fifth is a poor skin with imperfect skull. Of the two good speci- 

 jnens one seems unquestionably to represent a very dark sooty, rather 

 than brownish, race of P. pipistrellus, but there is no name available, 

 with description to fit. and it, of course, should not receive a new 

 name on the basis of a single specimen. The other specimen is a 

 slightly larger but equally sooty animal (forearm 30.5 mm.) with 

 larger skull and small premolar internal to the tooth row. It is 

 evidently of the P. coronmndra type, but the lack of comparative 

 material cuts short further inquiry. 

 21776—29 2 



