VOL. XIX PP. 83-86 JUNE 4, 1906 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWELVE NEW GENERA OF BATS. 



BY GERRIT S. MILLER, JR. 



By permission of the Secretary of the Smithsonian Institution. 



Having recently examined some of the more important Eu 

 ropean collections of Chiroptera in connection with the material 

 in the United States National Museum, I find that the following 

 genera have not hitherto been described. 



Niadius gen. nov. (Pteropidse}. 



TIJI>C. Cynopterus princeps Miller. 



Characters. Like Cynopterus but with the larger cheek-teeth broader and 

 more squarish in outline ; crown of pm. f and niy with distinct terete cusp 

 slightly in front of middle of crushing surface. 



Species. Niadius princeps ( Miller ) . 



Remarks. In the increased size of the larger cheek-teeth this genus ap 

 proaches Thoopterus; but the terete cusp in pm- t and m f differs conspicuously 

 from the ridge which occupies somewhat the same position in the related 

 group. 



SphcL'rias gen. nov. (Pteropidse). 



Type. Cynopterus blanfordi Thomas. 



Characters. Like Cynopterus but without calcar and external tail; inci 

 sors more developed than in any of the related genera, the series of the 

 lower jaw forming four conspicuous serrations when viewed from in front, 

 those of the upper jaw with sharp-edged crown well differentiated from 

 shaft and provided with a large main cusp near middle. 



Species. Sphxrias blanfordi (Thomas). 



Remarks. This genus was included in Thoopterus by Matschie* but it is 

 readily distinguishable by the small (normal) cheek-teeth, the absence of 

 the calcar and external tail, and the very peculiar, trenchant form of the 

 incisors. 



*Flederm. des Berl. Mus. fur Naturk., p. 77, 1899. 



18 PROC. BIOL. Soc. WASH., VOL. XIX, -1906. (83) 



