KUNQL. SV. VET. AKADEMIENS HANDLINGAR. BAND 57. NIO 2. 



17 



interorbital constriction = 3,r, width of brain case = 6,1; zygomatic width = 7,9; 

 front of canine to back of m 3 = 3,2 mm. 



Tylonycteris robustula. Thos. 



!■/ 



cC Doi Par Sakeug, Northwestern Siarn. 

 1914. — Forearm = 27, o mm. 



Vt 191J. — Forearm = 28, o mm. — $ Doi Par Sakeng 



In the Annals and Magazine of Natural History ser. 8., vol. 15. 1915 p. 226 — 228. 

 Mr. Oldfield Thomas has given some notes about båts belonging to the Genus Tylo- 

 nycteris. He there also describes a new species under the nanie of Tylonycteris robustula, 

 the range of which is given to the Malay Peninsula, Borneo, Java, Celebes and Timor. 



Tlie description and measurements of this species fairly well agrees with two spe- 

 cimens in my collection from the mountain regions of Northwestern Siarn, which I there- 

 fore have referred to T. robustula Thos. 



Thomas gives the forearm as measuring from 26 — 28 mm. which is also confirmed 

 by my specimens. 



The colour above is dark blackish brown and slightly lighter below. The interor- 

 bital constriction is not so broad as recorded by Thomas on the type specimen which 

 came from Sarawak, Borneo. 



Skull measurements 



9 (Type) 



Greatest length 12,G mm. 



Median length 10,7 



Condylus to front of canine .... 11,9 



Interorbital breadth 3,7 



Width of brain case 7,0 



Zygomatic width . . . 9,8 



Front of canine to back of m 3 . . . 4,0 



2,1 mm. 



12,5 mm 



— 



10,2 » 



1,1 



11,7 



3,4 



M ' 





7,6 » 



3,9 



4,2 



Scotophilus kuhli. Lach. 



°. Meh Kee. Northwestern Siain. near the boundary to Karenuee, 17 /7 1914. — Forearm = 59,5 mm. 



Only a single specimen of this bat was obtained during my journey. It was found 

 together with some other specimens roosting in a wild banana tree in a ver}^ dense jungle. 



From Northern Siarn it has been recorded before as well as another alHed species, 

 Scotophilus castaneus Horsf. This latter species may always be distinguished by its 

 smaller size and by its uniform chestnut fur which is of about the same colour throughout 

 and not lighter below as in S. kuhli. The length of the forearm according to Bonhote 

 (Proc. Zool. Soc. 1900 p. 192) ranges in 5 specimens of 8. castaneus in the British Museum 

 between 49 — 52 mm. while in 8. kuhli the average length of the forearm is about 60,5 

 mm. 



K. Sv. Vet. Akad. Handl. Band 57. N:o 2. 



