30 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXIV. 



Although the skull of this species is similar to that of members 

 of the P. mordax group in many respects, it shows its relationship 

 to P. ceylonicus by its broader and stouter build, the facing of the 

 cup-shaped outer incisors more outwards and the hiding by this 

 tooth of a larger portion of the inner one when viewed from outside. 

 The brown instead of black colour and the normal-shaped instead 

 of extra broad tragus are also as in ceylonicus. 



From ceylonicus it is distinguishable by its smaller skull, shorter 

 tooth-row, and smaller p\ Possibty it maj^ hereafter be connected 

 by intennediate links with that bat, and will then form a Burmese 

 sub-species of it, but at present the great geographical gap and the 

 difference in p^ demand provisional specific distinction, 



Pipistrelhis ceylonicus suhcanus, sub-sp. n. 



As in true ceylonicus, but general colour greyer and the hairs of 

 the back with hoary grey tips. Undersurface also lighter grey. 



Forearm of type 38 mm. 



Skull, length 14-7. Front of canine to back of m^ 5-6. 



Hob: — Ivathiawar and Cutch. Type from Yalala, Junagadh State, 

 Kathiawar. Alt. 200'. 



yype._Sub-adult female. B. M. No. 13. 8. 8. 30. Original num- 

 ber 1840. Collected 28th October 1912 by 0. A. Crump. Pre- 

 sented by the Bombay Natural History Society. 



The specimens of P. ceylonicus prove to be divisible into several 

 local races by slight differences of size and colour. Typical ceylonicus 

 of Ceylon is small and dark, indicus of S. W. India (Mangalore, 

 Coorg, &c.) is large and dark, while specimens from Bombay are 

 small but of intermediate colour. For these latter the name 

 chrysothrix is available, as there is little doubt that Wroughton's P. 

 chrysothrix was founded on a specimen of P. ceylonicus with abnor- 

 mal incisors. Something of its ruddy colour is also found spasmodi- 

 cally among the series of P. ceylonicus. Many more specimens from 

 all localities will be needed before the colour races can be fully 

 worked out, but it is evident that this grejdsh race of the north-west, 

 like the corresponding one of Scotozous dormeri, should have a 

 special sub-specific name. 



Pipistrelhts hahu, sp. n. 



The North Indian representative of P. tralatitius. First incisors 

 with scarcely any trace of secondary cups. 



Size and general characters as in tralatitius. Ears and tragus 

 about as in that species, the tragus of medium length and breadth, 

 its inner margin straight or slightly concave. Wings to the base of 

 the nose. A distinct post-calcarial lobule present. Penis of medium 

 length, its bone well developed, though far shorter than that of P. 



