$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. 



ASSOCIATE EDITOR : 

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



. 





Vol. XII. 



SEPTEMBER, 1898. 



No. 5 



CONTENTS : 



PAGE. 

 . 49 



50 



BIFIDARIA ASHMUNI, A NEW SPECIES OF PUPID/E. By Dr. V. Sterki. 



NOTES ON A FEW CHITONS. By H. A. Pilsbry 



LIST OF MARINE SHELLS COLLECTED AT PORT GUEYDON, KABYLIA, 



WITH DESCRIPTION OF A NEW CYCLOSTREMA. By C. F. Ancey. . 52 

 NOTES ON THE GENUS ODONTOSTOMUS. By Henry A. Pilsbry. . . .57 



POSTAGE ON NATURAL HISTORY SPECIMENS TO FOREIGN COUNTRIES. . 58 



GENERAL NOTES. ........... 59 



PUBLICATIONS RECEIVED. . 60 



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. 



