$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. PILSBRY, Conservator Conchological Section, Academy of Natural Sciences, Philadelphia. 



ASSOCIATE EDITOR : 

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



Vol. X. MARCH, 1897. No. 11 



CONTENTS : 



PAGE. 



ILLUSTRATIONS OF NEW UNIONID.*. ... ... 121 



LIST OF SPECIES COLLECTED AT BAHIA, BRAZIL, BY DR. H. VON 



IHERING. By W. H. Uall. . . .121 



ISAAC LEA DEPARTMENT 123 



A TRAY OF SHELLS FROM DENMARK. . . 124 



POSTAGE ON SPECIMENS OF NATURAL HISTORY. . . . 127 



IN MEMORIAM HENRY MOORES. ... . 128 



NOTES AND NEWS. ... . 130 



PUHLICATIONS RECEIVED. . . 131 



Published by 



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



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



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



