52^ Zoological Society, 



unc. lin. 

 Longitude ab apice rostri ad caudse basin. ... 2 3 

 ad basin auris .... 5 



caudce 1 10 



antibrachii 1 9^ 



poUicis 3| 



auris 6| 



pedis postici a calce ad apicera digiti 6^ 



Alarum amplitudo 11 



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

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



2 2 



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



pair of incisors on either side of upper jaw nearly equal. 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, which are widely separated and pierced almost laterally, is 

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

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

 what removed from the apex. The ears are largeish 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 

 in width ; they extend along the hind-leg to the heel only ; the thumb 

 is comparatively long; the hind-foot very large, and having the toes 

 equal, excepting the outer one (according to the natural position of 

 the foot, but the toe corresponding to the inner toe in most other 

 animals), which is rather shorter. The interfemoral membrane is 

 moderately ample, and does not extend quite to the tip of the tail, 

 a portion of about one line in length being free. The heel- cartilage 

 is very long. 



In the large size of the hind-foot the present species approaches 

 the V. Hasseletii of Temminck's Monograph, but it does not appear 

 that that species has the wings encroaching on the back as in V. ma- 

 crotarsus; the ears are much larger, the thumb also larger, tail 

 longer, &c. The proportions, as compared with those of M. Tem- 

 minck's F. macrodactylus and V. hrachypterus, differ considerably, 

 though both these species have the hind-foot large ; the larger ears, 

 longer thumb, and more ample wing will serve to distinguish it. 



Vespertilio PELtiUciDus. Vcsp. vellere longo, pallide rvfo, cor- 

 pore suhtils cinerascenti-albo ; alls fuscis, pellucidis ; auribus mag- 

 nis, apice acutis, postici emarginatis ; trago elongato, attenuato ; 

 rostro producto, depresso, subacute . 



unc. lin. 

 Longitudo ab apice rostri ad caudse basin. ... 1 8 



caudce 1 9^ 



