IZ^l/^ 



$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, Acting Curator Wagner Institute of Science. 



Vol. IV. 



DECEMBER, 1890. 



No. 8. 



CONTENTS: 



A New American Pisidiu.m. Edward W. Roper. 



Notes on Florida Buli.muli. G. W. Webster. 



Conchological Notes from Oregon. Dr. \Vm. H. Dall. 



A Catalogue of Conchological Ahkrkvi.vtkins. F. C. Baker. 



American Association of Conchologists. 



General Notes. ...... 



page. 

 &> 

 85 

 87 

 89 

 91 

 95 



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. 



FOREIGN AGENCIES:— London, Trubner & Co., 57 and 59 Ludgate Hil 

 Berlin, R. Friedlander & Son, 11 Carlstrasse. 



