102 BATHYBEMBIX AEOLA. 



is rounded, angular above at the insertion of the outer 

 margin and slightly canaliculate by the submarginal de- 

 pression of the last whorl. The outer margin is slightly 

 thickened and nearly imperceptibly expanded ; the columella 

 is broad and flattened, covers the umbilicus and runs without 

 distinct angle in the rounded basal margin. Parietal wall 

 covered by a very thin layer of enamel, pearly on the 

 left side. 



Alt. 41, diam. maj. 34 mm.; apert. alt. 20, lat. 17 mm. 



Hob. Japan (v. Siebold). 



Rhoon, July 1904. 



Notes from the Leyden Museum , Vol. XXV. 



