ear is extended forwards to the angle of the mouth. The tragus is 

 narrow, curved, rounded at the point, indistinctly emarginated on 

 the outer side, and about 2f lines in length. The wings are rather 

 narrow, and extend along the hind-leg to the distal end of the tibia 

 only. The hind-legs are moderate ; the metatarsus narrow and long, 

 the distance from the heel to the base of the toes exceeding the toes 

 in length ; the toes are rather short and nearly eąual. The inter- 

 femoral membrane is ample, naked, excepting at the base ; the heel- 

 cartilage is short ; the tail enclosed in the interfemoral membrane to 

 the point ; the thumb is very small. 



Of the species deseribed in this paper, Vespertilio EschschoUzii 

 approaches most nearly to the V. tristis ; it is mucli smaller, how- 

 ever, than that animal, has the thumb smaller in proportion, and its 

 colouring is less dark. Among the species of M. Temminck's Mo- 

 nograph our V. tristis most nearly resembles, in the form of its head 

 and ears, the V. blepotis (pi. 53. fig. 2.); the V. EschschoUzii (of 

 which Mr. Cuming brought home several specimens) is at least one- 

 third smaller. 



Vespertilio macrotarsus. Vesp. supra cinereus, subtūs albicaiis; 



auribus longis, angustis, ad apicem acutis, postice f ere rectis ; 



trago elongato, attenuato, acuto ; alis amplisfuscis, ad basin pal- 



Udioribus. 



unc. lin. 

 Longitudo ab apice rostri ad caudae basin. ... 2 3 



ad basin auris .... O 5 



caud(B 1 10 



antibrachii 1 9A 



pollicis O 3| 



auris O 6| 



pedis postici a calce ad apicem digiti O 6į 



Alarum amplitudo 11 O 



The fur on the back is apparently dusky grey next the skin, and 

 pale ashy grey externaUy, and on the under parts the hairs are grey 



at the base and whitish at the point. The incisors are — ^ ; the 



pair of incisors on either side of upper jaw nearly eąual. The fore- 

 head is convex, and separated from the muzzle by a transverse de- 

 pression : the muzzle somewhat produced and pointed, the mesial 

 portion above and in front naked, the naked portion above extending 

 about two lines from the tip, and separated from the somewhat 

 swollen cheeks by a longitudinal groove on each side : between the 

 nostrils, Mrhich are widely separated and pierced almost laterally, is 

 a shallovv groove. The lips have small scattered hairs, excepting at 

 the tip, where they are naked ; on the chin is a naked Ayart some- 

 \vhat removed from the apex. The ears are largish and rather nar- 

 row, pointed, and have the hinder margin nearly straight. The 

 tragus is narrowish, attenuated, and pointed at the apex. The wings 

 are ample, and the membranes encroach on the back so as to reduce 

 the portion covered with fur to a narrow strip of about half an inch 



