22Q Mr. 0. Thomas on Bats of iJie 



more strongly developed supraorbital processes. Brain-case 

 more inflated, smoothly rounded ; sagittal crest low, not 

 continued back to meet the lambdoid. 



Inner incisors shorter than usual, broad, flattened, bi- 

 lobate ; outer small, about half the height of the inner. 

 Canine with a strongly marked secondary cusp halfway up 

 its hinder edge. P^ minute, about a quarter of the area in 

 cross-section of the small i^ ; very low, invisible externall}', 

 hidden in the angle between the neighbouring teeth. Lower 

 })remolars very small, subequal^ the tip of the posterior 

 directly behind that of the antei-ior. 



Dimensions of the type (measured on the spirit-speci- 

 men) : — 



Forearm 39 mm. 



Head and body 56; tail ?^d ', ear (inner edge) 8; tragus 

 (inner edge) 2 ; third linger, metacarpal 35*5, lirst ph.daiix 14 ; 

 fifth finger, metacarpal '6'6, first j)halaiix (i'5 ; tibia 15 ; hind 

 foot 8. 



Skull : greatest length 15 ; condyle to foot of canine 14*2 ; 

 basi-sinual length 11 'i ; zygomatic breadth 10*5 ; breadth on 

 supraorbital processes 7*2; ])(>storbital constriction 4*5; 

 brain-case breadth 8"2; palato-sinual length 5; front of 

 canine to back of m^ 5'1 ; front of // to back of m^ 3*5 ; 

 lower tooth-iow (exclusive of incisors) 5'5. 



Ilah, Kachin Hills, Upper Burma. 



Type. Adult male. B.M. no. m. 12. 1. 37. Collected by 

 L. I'ea and presented by the Marquis G. Doria. 



This fine bat 1 had formerly supposed to be referable to 

 ripi'sireUns affinis, Dobs., of wiiich the only recortled speci- 

 men is in Calcutta; but Dobson's measurements of the digits 

 show that that is really a J'ipistrellus, not a JS^yctalas. 



The known species of Ntjctalus diffci-, inter se, by hardly 

 any characters but size, so that the distinctions in tragus, 

 skull, and dentition above detailed indicate that the present 

 bat is more distinct from any of them thau they are from 

 each other. 



The species is named in honour of General JofFre, 

 Commander-in-Chief of the French Army. 



Tylonycteris. 



While the forearms of the members of the genus Tylo- 

 nycteris are all very nearly of the same length (26-29 nnn.), 

 the skulls show a considerable diversity iu size, and it is 

 quite evident that several different species or subspecies 

 should be recognized. Moreover, the forearms do not vary in 



