$1.00 per Year. ($1.12 to Foreign Countries.) lOcts. a copy, 



THE 



NAUTILUS 



A MONTHLY 



DEVOTED TO THE INTERESTS 

 OF CONCHOLOGISTS. 



EDITOR : 

 H. A. PILSBRV, Conservator Conchological Section, Academy of Natural Sciences, Philadelphia. 



ASSOCI^'E EDITOR : 

 C. W. JOHNSON, Curator of the Wagner Free Institute of Science. 



Vol. XI. 



APRIL, 1898. 



No. 12 



CONTENTS : 



PAGE. 



DESCRIPTIONS OF NEW AMERICAN LAND SHELLS. By Henry A. Pilsbry. . 133 



A NEW SUBGENUS OF CORALLIOPHAGA. By W. H. Dall 135 



NOTES AND NEWS . 135 



RECENT PUBLICATIONS. . 137 



A CLASSIFIED CATALOGUE OF AMERICAN LAND SHELLS, WITH LOCALITIES. 



(Concluded). By Henry A. Pilsbry. . . .138 



Published by 



H. A. PILSBRY, Editor, Academy of Nat. Sciences, Philadelphia. 



C. W. JOHNSON, Manager, Wagner Free Institute of Science, Philad'a, 



Entered at Philadelphia Post-Office as second-class matter. 



