ALLEN: MAMMALIA. 243 



About the eye is a narrow ring of hair-brown, and a few dark brown hairs are 

 scattered along the sides of the body. Without additional specimens it is im- 

 possible to decide how great may be the individual or age variation in color so 

 for the present it seems best to consider this Ichang specimen as representing 

 E. hanensis. The collector's measurements are: total length, 225 mm.; 

 tail, 19 mm.; hind foot, 43 mm. 



The skull seems to be that of a nearly adult animal, and is but a trifle smaller 

 than that of E. dealbatus from Pekin. Its dimensions are: greatest length, 

 49.5; basal length, 46; palatal length, 29; zygomatic breadth, 30; mastoid 

 breadth, 24; width outside first upper molar, 20; mandible from condyle to tip 

 of incisor, 39; upper tooth row, 27; lower tooth row, 25.5. The anterior pro- 

 longations of the frontals do not reach the intermaxillaries so that there is a 

 maxillonasal suture of some 3.5 mm. in length. 



VESPERTILIONIDAE. 



PIPISTRELLUS ABRAMUS (Temminck). 



Between July 24 and August 5, 1907, a series of twenty-five specimens was 

 collected at Ichang. A number of these are immature with the metacarpal 

 epiphyses still distinct. The species was also obtained at Kiating, Hochinghsien 

 and Kweifu, in Szechwan. The adult males are nearly hair-brown above and 

 females are of a redder tinge, nearly 'Prout's brown.' In both sexes the bases 

 of the hairs are darker, near seal-brown. This sexual dichromatism was noticed 

 by Swinhoe (1870, p. 618) who says that "the female is a rich brown, with lighter 

 and dusky underparts; the male is black." The skulls of our series show some 

 variation in size, though this is often more apparent to the eye than the measure - 

 ments would indicate. Thus the smallest skull is 13 mm. long but is in every way 

 lighter and more delicate than the largest which measures 14 mm. In some the 

 upper canine and pm 3 actually touch, while in others there is a considerable 

 space between the two teeth. Usually, however, this space is slight. 



VESPERTILIO MURINUS SUPERANS (Thomas). 



One male was taken at Ichang, Hupeh, April 22, 1907, and a pair on March 

 28, 1908, at Kweifu, in eastern Szechwan. 



NYCTALTJS NOCTULA LABIATA (Hodgson). 



An immature skin and skull from Ichang, July 21, 1907, and an adult skin 

 from Kweifu, eastern Szechwan, March 28, 1908, represent a very dark colored 



