720 JOURNAL, BOMBAY N A TURAL HISTORY SOCIETY, Vol. XII. 



Though after examining a series of each of onr three common 

 Fipistrelles it is not difficult to distinguish P. ceylonicus by its colour, yet 

 it is difficult to put the difference into "vvords. T can onh' say that the 

 jDaie tips of the hairs give the impression of a very dark brown — almost 

 black — bat, with a reddish or brown ' bloom ' in certain lights 

 ( Plate, fig. 4). The dentition ( Plate, fig. 4a ), however, is markedly 

 different from that of P. ahramns. 



This bat is ossentiall}' a town-dweller. I shot two at Bulsar, but all 

 the rest I got at Bandra, and most of them were brought to me by 

 native boj's, who took them roosting in the tiles of houses in the 

 bazaar. One was shot by Mr. Dodgson in Bassein. This may point 

 to its being a seaside bat, but it may more probably be due to the fact 

 that large villages with tiled roofs are mostly found along the coast. 



From a pregnant female shot at Bandra on the 7th September I 

 took two fully formed young ones ; while on the 10th October, two 

 immature specimens, fully two-thirds the size of adults, were brought 

 to me. 



Pipistrellus chri/sothriv, n. sp. 



The specimen being a dried skin, the ears have shrunk and become 

 distorted, so that detailed characterization of their shape is impossible, 

 but generally they are of the same type as in P. ceylonicus. Fur 

 long aud loose of a golden brown (Plate, fig. 5). Were it not for the 

 lustreless appearance, caused b}' the long loose fur, the colour might 

 well be described as ' old gold.' The under parts are paler, i. e., 

 more golden, than the upper. At first sight, it appears that the 

 individual hairs are the same colour from base to tip, but this is dis- 

 proved by the fact that, when the fur is smoothed down, narrow 

 transverse dark bands—faint, it is true, but quite distinct — can, in cer- 

 tain lights, be seen crossing the back, especially towards the tail. Tail 

 and membranes black. 



The dentition (Plate, fig. 5a) is most characteristic. The secondary 

 cusp of the upper, inner incisor is posterior to the main cusp, so that, 

 though well developed, only its extreme tip can be seen between the 

 two incisors. The outer incisor has two sub-equal cusps, only slightly 

 shorter than the mtiin cusp of the inner, and almost in the same plane 

 with it (the inner cusp is very slightly behind the outer), so that, at 

 first sight, this species seems to have three upper incisors on each side. 



