Mr. 0. Thomas on three new Bats. 527 



tion of this paper — the former for advice on the conchological 

 aspect of the question, and the latter for having supplied me 

 with references to the literature on the subject of the nomen- 

 clature laws. 



LXII. — Descriptions of Three neio Bats in the British 

 Museum Collection. By Oldfield Thomas. 



Hipposiderus Pratti, sp. n. 



Allied and but little inferior in size to H. armiger. 

 Frontal sac present (in the female, therefore certainly large 

 in the as yet unknown male) ; the fleshy prominences on eacli 

 side of the sac still more developed than in that species, and 

 forming a sort of supplementary nose-leaf more than 3 

 millim. high, running right across the muzzle, and only inter- 

 rupted in the centre where the opening of the frontal gland 

 is placed. (In the male there is no doubt a still further 

 development of this remarkable structure.) Terminal erect 

 part of the true nose-leaf high in the centre and sloping down 

 rapidly on the sides, its upper edge therefore far more convex 

 tli an in the other species of the genus ; its outer edges not 

 continuous with the horseshoe ; its front surface with a single 

 central vertical ridge. Front edge of horseshoe sharply and 

 distinctly notched in the centre. Two supplementary leaflets 

 present on each side of the muzzle. 



Ears as in H. armiger. Wing-membrane attached to the 

 ankles. Last caudal vertebra free of the interfemoral mem- 

 brane. 



Colour of the fur (in alcohol) apparently dull smoky grey 

 above and below. 



Dimensions of the type, an adult female in alcohol : — 



Head and body 90 millim. ; tail 56 ; head 33 ; ear, above 

 crown, 24; forearm 83 (=3*25 inches) ; lower leg 35; hind 

 foot, including claws, 21. 



Hab. Kia-ting-fu *, Western Sze-chuen, China. Col- 

 lected by A. E. Pratt, Esq. 



* Found in the artificial caves made by the ancient inhabitants of the 

 district. In the very same cave as this specimen Mr. Pratt obtained a 

 male of what appears to be H. armiyer, unless the male of H. Pratti is 

 like H. armiyer while the female is quite different. This, while possible, 

 is very unlikely. Fortunately both sexes are known not only of the true 

 H. armiger but also of the Chinese H. Swinhoei, Peters, ordinarily con- 

 sidered to be synonymous with it, and therefore there can be no question 

 as to the specific distinctness of the new form. 



