SCIENTIFIC RESULTS FROM THE MAMMAL SURf'EY. 731 

 D._ON THE GENUS TADAEIDA (WRINKLE-LIP BATS). 



BY 



R. C. Wroughton, F.Z.S. 



Blauford places the two species tragatiis (No. 224), and 'pUcatus 

 (No. 225) in the Genus Kyctvwmus. Dobson in 1874 (J. A. S. B. 

 Vol. XLiii, pt. 2, p. 142) established o subgenera Dinops, Bysopes, 

 and Chaerephon, placing both the above mentioned species in 

 Bysopes. That name however having already been used for a 

 different animal-had to be dropped. Later Chaerephon was recog- 

 nised as a full Genus and plicatus was assigned to it, tragatus 

 being retained in Nyctinomus. Lyon (Proc. Biol. Soc. Wash, 

 xxvii, p. 217, 1914) pointed out that Tadarida antedated Nyctino- 

 mus. The species tragatus must therefore now be recognized as 

 belonging to that Genus, of which it is the only Indian represen- 

 tative. Dobson desciibed tragatus (1. c. supra) chiefly by distin- 

 guishing it from plicatus, though he noted its resemblance to 

 cestonii. In J876, in his Catalogue of the Asiatic Chiroptera 

 (p. 181) he repeated his description, but added a few body measure- 

 ments which do not help very much towards identification. Still 

 later, in 1878, (Catalogue of the Chiroptera of the British Museum, 

 p. 424) he compared it ^vith cegyptiacus, Geofl:". pointing out that 

 it had 6 incisors in the lower jaw whereas wgyptiacus had only 4. 

 There appear to be therefore two sections in the Genus Tadarida, 

 viz., one represented by agyptiacus with 4 incisors in the lower 

 jaw, and, though this character is not noted by Dobson, the anterior 

 premolar reduced to a mere rudiment ; the other section repre- 

 sented by tceniotis {^cestonii) with 6 incisors in the lower jaw, 

 and an anterior premolar which though markedly reduced in size, 

 is still a functioning tooth. 



Dobson 's tragatus therefore belongs to this latter, or tceniotis, 

 section, which is represented in the National Collection (so far as 

 the Indian fauna is concerned) by a single specimen from Malabar. 

 There are, however, three other specimens belonging to the cegyptia- 

 cus section, as do all the specimens obtained by the Mammal 

 Survey, viz: — Sind, 3; Cutch and Kathiawar, 14; Dharwar and 

 Mysore, 3 ; and Dekhan, 6. These have all been entered in the 

 Reports as Xydinomus tragatus which clearly is a mistake, and they 

 almost certainly are a form, or forms, identical with, or closely 

 related to Tadarida asgyptiaca. 



Having laid out and studied all the available material I have 

 decided to describe as new three forms which may be compared as 

 follows : — 



A. — Size larger, forearm about 52 mm. 



a. General colour paler, about " drab 



gre}"." ... ... ... ... cegyptiaca, Geoff. 



