366 Proceedings of the Royal Physical Society. 



The Interfemoral membrane is small, and springs from base 

 of tarsus, with a distinct projection or free margin, in breadth 

 about '3 of an inch ; it widens upwards opposite the knee to 

 •65 of an inch, and is about '5 of an inch in breadth, where it 

 unites in the mesial line with that of the other side. It is 

 covered with hair, longest above and below in mesial line. 



Penis prominent. 



Tail rudimentary. — A small papilla or point, about a tenth 

 of an inch and a half in length, indicates the existence of a 

 tail, below and free of the interfemoral membrane, in the 

 male. 



The Fur or Hair over body generally thick and short in 

 character ; of a yellowish brown on the shoulders and back, 

 rather lighter on top of head and towards muzzle; sides 

 of head and neck darker brown, as well as chest and flanks ; 

 wings brown, rather darker in front and on interfemoral 

 membranes. As my specimens have all been kept in spirits, 

 I take these details from the stuffed specimen already referred 

 to in the IMuseum of Science and Art ; but I cannot detect 

 the peculiar parti-coloured hair on the " back of the neck 

 and shoulders" which Mr T. Allen seems to consider a specific 

 character in his description of this species of bat {Proc. 

 Acad. Nat, Scien., Philadelphia, 1861). In this bat there seems 

 no such peculiarity. The specimen has been for some time 

 exposed in the case, and has probably suffered from the 

 bleaching infixience of the light; the front of the specimen 

 is, however, next the light. There is also a large oval patch 

 of light greyish or dirty-white colour over the front of the 

 abdomen, the flanks being reddish brown. A small lighter 

 coloured tuft of hair at anterior base of margin of ear, and 

 irom the shoulder glands a very conspicuous tuft of light or 

 fawn-coloured hairs ; the lighter colour also passes down the 

 base of neck a little below the glandular opening. 



Female Bat.— The female is smaller in size than the male. 

 When killed, this specimen was nursing an immature bat, to 

 be next referred to. The female has no glandular pouches on 

 the sides of the neck as in the male, but simply rather deep 

 depressions, without the light-coloured hair. 



Palatal ridges as in the male. 



