182 Mr. T. Paine on the Hairy-armed Bat. 



with it in the shop, all of the same species, and the informa- 

 tion given respecting them was, that there were fourteen taken 

 from an old hollow tree in a village in the vicinity of Norwich. 

 The specimen described was the largest among them. 



The Vespertilio Leisleri is smaller than the Noctule, and the 

 membrane rather deeper in proportion to the size of the ani- 

 mal than in that species; the upper jaw projects considerably 

 beyond the under, and rather more than appears in Mr. BelPs 

 figure ; the ears are hairy within, the tragus rounded, scarcely 

 half the length of the ear ; the tail is exserted very little, if 

 any, beyond the interfemoral membrane. 



The muzzle is naked and dusky; the ears horn-colour, edged 

 with dusky. The head, neck, shoulders, and all the upper 

 parts of the body are bright chestnut brown ; the lower jaw 

 nearly black, the throat of a dusky brown, and all the lower 

 parts of a dusky yellowish brown ; a ridge of hair runs all 

 round the body of the bat both above and below on the inter- 

 femoral membrane, varying from two to six lines in width ; 

 along the fore-arm on the inner surface of the interfemoral 

 membrane is a quantity of reddish brown hair, rather thinly 

 scattered in the middle, but more close near the wrist, and 

 nearly half an inch in width. The membrane is dusky, nearly 

 approaching to black. 



inch. line. 

 Length of head 10 



of head and body 2 11 



of ear 5^ 



of tragus l£ 



of fore-arm 2 



from the knee to the extremity of the toes 1 2 



of the tail 1 8 



Extent of the flying membrane 12 2 



From these measurements it appears that the present speci- 

 men is considerably larger than that described by Mr. Bell, 

 which was said to be the only English occurrence of this spe- 

 cies. His animal was probably a young one, as the colour of 

 the under parts as given in the * British Quadrupeds 5 is much 

 darker than in this specimen. 



It is said by Mr. Bell to frequent hollow trees, where it 

 congregates in vast numbers unaccompanied by any other 

 species. 



