413 



SCIENTIFIC EESULTS OF THE MAMMAL SURVEY. 



By Oldfield Thomas, f.r.s. 



No. IX. 



(Piiblislied by ijennission of the Trustees of the British Museum.') 



A NEW PIPI8TBJELLE BAT FROM TENASSEBIM. 



Among the specimens recently obtained for the Mammal Survey 

 of the Bombay Natural History Society by Mr. Shortridge inTenas- 

 serim, there occurs a single specimen of the following striking species . 

 of Pipistrelle : — 



PiPISTRELLUS LOPHURUS, sp. n. 



A rather large species with a tuft of glandular hairs on the base 

 of the tail. 



Size above the average of the species of this genus. Fur of 

 medium length, hairs of back about 5 mm. General colour, above 

 warm bistre-brown, below rather paler than " Prout's brown," the 

 hairs both above and below blackish-brown at their bases. 



Fur not extending on to the wings above, and below only on the 

 part close to the body. On the base of the interfemoral above, how- 

 ever, there is a large glandular patch of hairs, more than half an 

 inch in diameter, the hairs radiating from a point close to the base 

 of the tail, where there is presumably some sort of gland ; the hairs 

 themselves are about 5-6 mm. in length, uniformly brown, and 

 more or less unctuous or sticky. On the imdersurface no trace of 

 the glandular structure is observable, the usual small triangxilar area 

 at the base of the tail covered with normal hairs. Ears of medium 

 size, their anterior base convex, roughened, and with a distinct 

 fringe of hair ; outer margin with a well-marked basal lobe. 

 Tragus shaped as in P. imlricatus and its allies, broad, its greatest 

 breadth opposite the middle of its inner margin ; inner margin 

 concave, outer strongly convex, with a large triangular basal lobe. 

 Wings to the base of the toes. A narrow post-calcarial lobule. Tip 

 of tail alone projecting from membrane. Penis skinned in the type, 

 so that it is doubtful whether it has a bone or not. 



Skull stout and heavily built, high, not flattened, nasal notch 

 very broad. Anterior palatine notch especially broad, broadening out 

 behind with a straight posterior margin. Posterior palate extended, 

 far back, its hinder margin practically entire, with scarcely a trace 

 of a median projection. Basal pits about as in P. imlricatus. 



Incisors subequal, the inner with a secondary su.bterminal cusp, 

 the outer concave and with ou.ter and inner marginal secondary 

 cusps; in fact, all very much as in P. imhricatus. Small 

 premolar rather large, twice as large as in imhricatus. Posterior 



