528 Mr. 0. Thomas on three new Bats. 



This fine species is readily distinguished from its nearest 

 allies, H. armiger and H. leptojyhyllus ^ bj the very different 

 shape of the terminal nose -leaf, by the great development of 

 the prominences on each side of the frontal sac, and by its 

 lesser number of supplementary leaflets. In size it is note- 

 worthy as being only exceeded by three members of the large 

 genus HipposideruSj and it is in fact one of the largest 

 insectivorous bats that have been described for many years. 



Vesperugo [Vesperus) Mohneyi^ sp. n. 



Vesperus with the tragus extraordinarily short, with the 

 outer upper incisors nearly as long as the inner, and with the 

 anterior lower premolar minute. 



Size of body medium, but the extremities so short that 

 the forearm-length makes the species appear to be among the 

 smallest of the genus. Head very broad and flat, much as in 

 Nycticfjus * or in V. p)<^chypus : facial glands swollen, but 

 not raised vertically above the level of the centre of the. 

 muzzle. Ears very short, their edges evenly continuous, not 

 emarginate externally either above or opposite the base of 

 the tragus ; the small keel usually present just behind the 

 base of their inner margin nearly or quite 

 obsolete. Tragus (see figure) extraordinarily J~~n, 



small, quite unlike that of any other member % J 



of the group, its height, measured along its // 



inner edge, less than half its breadth, its upper 

 and its outer margins rounded ; its outer base Left Tragus of Ves- 

 without any projection. Anterior ^xiY&mx- perugoMoloneyi,'{. 

 ties much reduced throughout, especially 

 distally ; the forearm but little more than half of the combined 

 lengths of the head and body, the thumb very short, the two pha- 

 langes of the middle finger together only about half the length 

 of the short forearm, and those of the fifth finger less than a 

 fifth of it; finally the usual distal cartilaginous extension of 

 the third finger is nearly obsolete. Hind legs unusually 

 thick and muscular. Calcar feeble, post-calcareal lobule 

 absent. Extreme tip of tail only free from membrane. 



Fur short, uniformly very dark brown or black above and 

 beneath. 



Upper inner incisors long, their tips bicuspid ; outer ones 



* When showing (Ann. Mus. Genov. (2) ix. p. 88, 1890) that the 

 American Nycticejus humeralis conld not be separated generically from 

 the Old- World Scotophilus, I did not notice that the name Ni/cticejus 

 (1819) was anterior in date to Scotophilus (1822). Mr. Blanford has 

 since pointed this out to me ; and it is evident that the former name 

 must be used for all the species hitherto called Scotophilus. 



