29 



SCIENTIFIC RESULTS FROM THE MAMMAL SURVEY. 

 By Oldfield Thomas, F.R.S. 



No. XI. 



A. — On Pipistrels of the Genera pipistbellus 



AND SCOTOZOUS. 

 BY 



Oldfield Thomas. 



(Published hij loermission of the Trustees of the British Museum.) 



In the course of determining the bats received in recent consign- 

 ments from the Bombay Survey I have found the following 

 Pipistrels to be new or worthy of note i — ■ 



Pipistrellus shanonom, sp. n. 



Closely allied to P. ceylonicus but skull smaller and p^ less 

 developed. 



External characters quite as in P. ceylonicus, apart from the 

 slightly smaller size. Ooloxir as in the dark forms of ceylonicus, 

 such as Southern Indian specimens representing the sub-species 

 indicus. The upper surface dark warm brown, the proximal three- 

 fourths of the hairs more blackish ; undersurface smoky brown, the 

 hairs broadly tipped with dark buffy or cinnamon. 



Skull as compared with that of ceylonicus smaller, with smaller, 

 lower brain-case and narrower muzzle. Teeth as in that species 

 except that p^ is much smaller, only about two-thirds the area of i^, 

 so that a lino drawn from the inner edge of m^ past that of p** 

 continues forwards to that of the canine without touching the 

 minute p^ between. Lower teeth as in ceylonicus. 



Dimensions of the type, the italicized measurements taken in the 

 flesh :— 



Forearm 37 mm. 



Head and hochj 57, tail 30, ear 13, tragus on inner edge 4, 

 breadth 2-1 ; third finger, metacarpal 36, first phalanx 15 ; fifth 

 finger, metacarpal 33-5, first phalanx 8 ; lower leg and hindfoot 

 (c.u.) 20-5. 



Skull, greatest length 14*5; median length 12; condyle to front 

 of canine 13-6; zygomatic breadth 10; constriction 3-9; breadth 

 of brain-case 7*6; palato-sinual length 5*4; front of canine to back 

 of m^ 5-5 ; front of p* to back of m^ 3*5. 



Hah. — Northern Shan States. Type from Pyaung-gaung, 2,800'. 



Ty .—Adult female. B. M. No. 14. 7. 8. 6. Original number 

 29^' . Collected 4th May 1913 by G. C. Shortridge. Presented 

 by/ ne Bombay Natural History Society . 



