25 



SCIENTIFIC RESULTS FROM THE MAMMAL SURVEY 



No. XXII. 

 By 



Oldfield Thomas, F.R.S. 

 (Published by permission of the Trustees of the British Museum.) 



A. — A NEW BAT OF THE GENUS RhINOPOMA FROM S. E. PERSIA. 



The following new bat belonging to the genus Rhinopoma 

 occurs among the collections made b}- Col. J. E. B. Hotson : — 



Rhinopoma pusillum, sp. n. 



A species of the cy stops group, smaller than any as yet des- 

 cribed. 



General build light and delicate, about as in R. muscatellum and 

 seianum, but size still smaller. Connecting band of ear well 

 developed. Feet small and ver}^ slender. Tail short, slightly 

 shorter than the forearm, the converse beirg generally the case in 

 all the smaller forms of Bhinopoma. 



Skull with the prominent nasal inflations characteristic of the 

 cystops group, and these proportionally a little higher ; top of 

 muzzle, as seen in profile and compared with the line ot the 

 tooth row, slanted downward anteriorly in cystops, horizontal in 

 muscatellum and seianum, iipwards anterior!}* in the new form, 

 though very slightly so. Sagittal crest well developed anteriorly. 

 Bullfe not so large as in muscatellum and seianum. 



Molars smaller than in any of the allied species. Canines shorter, 

 comparatively broad at base. 



Dimensions of the type, measured on the spirit specimen: — 



Head and body, 54 ; tail, 4G ; ear, 17-5 ; lower leg and foot (c.u.), 

 32 ; hind foot (c.u.) 11-3. Skull :— greatest length, 15-5 ; median 

 naso-occipital length, 14 ; zygomatic breadth, 9'2 ; breadth across 

 nasal inflations, 5-5; mastoid breadth, 8; length of bulla, 4-4; 

 basal diameter of canine, 1-1 ; front of canine to back of m'., 5 '3 ; 

 combined length of m\ and m"., 2-6, 



TJab.-.—^ih, S. E. Persia, near the Perso-Baluchistan frontier. 



Type:— 0\di female in spirit B.M. No. 20.1.19.3. Collected by 

 Col. J. E. B. Hotson, presented by the Bombay Natural History 

 Society. One specimen onh*. 



Considering how near are the respective localities I had expected 

 this would prove to be seianum, but it is readily to be distinguished 

 by its small size, much smaller teeth and shorter tail. 



