724 JOUPiNAL, BO.VBAY NATURAL HISTORY SOCIETY, Vol. XII. 



Finally the genus Scotophilus (late Vesperugo) of this family is 

 reprcsontofl in onr nrea by two specie?. 



Scotophilus kuhlii, Leach (No. 94). 



BlanforJ mentions a form (S. heathi^ Horsf.) ranked by Dobson as a 

 variety, the forearm of which varies between 60 and 07. It is probab- 

 ly to this variety or species that our local form belongs. The average 

 length of forearm in eight specimens (5 male ;ind 3 female} collected 

 b}' me is ')^d (varying between 57 and 61). 



This is a common bat with ns, and is well distributed. I have taken 

 it in all parts of the 8urat and Thana Districts. The bright canary 

 yellow belly is a very noticeable feature in -S. hihlii. 



Blanford speaks of S. Imldii as '' the first to appear in the evening," 

 but in my experience it never appears until the Pipistrelles have been 

 some time on the wing. I have never seen it * hawking ' like these 

 latter, but always starting off steadily, apparently making in a bee line 

 for some distant but definite point. 



Scotophilus xoroughtoni, Thomas.. 



This species (Plate, fig. 1) was described by Mr. Thomas in his paper in 

 our Journal (to which I have referred above) on a single female speci- 

 men which I obtained at Mandvi (Surat District). He quotes the tail 

 dimension as 40 ; this is an error for 49 or 50. The mistake was made 

 by myself in writing out the ticket of what is now the type specimen. 

 I have since obtained another female at Bulsar, of much the same size, 

 whose tail is recorded as 51. I have also taken a series of 10 males, 

 whose average tail measurement is 49*5 (varying between 46 and 54). 

 The male forearm seems to run a little shorter than the female ; the 

 average of 10 specimens being 47*5 (varying on'y between 47 and 49), 



Except by its size it cannot be distinguished from S. kuhlii on the 

 wing ; wherever I have found it, it has been associated with that species. 

 Like S. kuMii, it almost certainly roosts in crevices in masonry ; it also 

 appear about the same time in the evening and flies in the same way. 

 On one occasion only I found it ' hawking' about some large trees, on 

 the outskirts of a village. 



Bulsar is the most southerly point at which I have taken S. wroughtoni^ 

 but I expect it will be found to occur in Tliana, especially in the 

 neighbourhood of some of the old forts, in which roosting places, such 

 as it frequents, abound. 



