V 



/ / 



THE 



-c 



NAUTILUS 



A MONTHLY JOURNAL 



DEVOTED TO THE INTERESTS OF' 



CONCHOLOGISTS 



VOL XXIIL 

 MAY. 1909, to APRIL, 1910. 



EDITORS AND PUBLISHERS: 

 H A. Pii-SBRV, Curator of the Dcpnrtnient of >rollusca, Academy ol NaturnI Sclciicit, 



I'HII.AnEI.PHM. 



0. W. Johnson, Curator of the Boston Society of Natural HJslory, 

 Boston. 



