A REMARKABLE NEW FREE-TAILED BAT. 91 



b.^ Basi-occipital pits scarcely 

 defined. No projection on 

 zygoma ... ... ... Ghcerephon, Dobs. 



B. M^ rediiced, its posterior commissure 

 obsolete, or at most extending less 

 than half as far inwards as the 

 anterior angle. 

 Premaxillae open or closed ... ... Mops, Less. 



The chief species which fall into these several genera are as 

 follows : — 



1 . Nyctinomus — 



Indian species ... tragatus. 



African ... ... teniotis, aegyptiacus (type), afri- 



canus, fulminans lohatus, 

 hocagei, brunneus, anchiatce, 

 cisturus. 



All American and Australian species. 



2 . Otomops — 



Indian ... ... wrougMoni. (type). 



African ... ... martiensseni. 



3. Chcerephon — 



Indian ... ... plicatus, joliorensis. (type). 



African ... ... bivittatus, and all immilus group. 



4. Mops — 



Indian ... ... mops (type). 



African ... ... tnidas, ■miarensis, demonstrator, 



angolensis, tliersites, leonis, 

 brachypterus. 

 It will thus be seen that the striking new bat named after 

 Mr. Wroughton proves to represent a new genus, to which I should 

 also provisionally assign the African martien8se7ii. This new genus 

 is readity distinguishable by the obsolescence of the tragus and 

 antitragus, the peculiar shape of the skull, the projections on the 

 zygomata, the elongated 'tympanies projecting forwards to touch 

 the pterygoids and the deep and partly covered in basi-phenoid pits 

 in addition to the combination of complete m^ with united pre- 

 maxillas which it shares with the otherwise very different 

 Chcerepthon. 



Its alliance, as indicated in the earlier part of the paper, is, no 

 doubt, most close with true Nyctinomus, but its many peculiarities 

 amply justify its erection as a special genus. 



