JAN 12 1891 



$1.00 per Year. ^$1.12 to Foreign Countries.) ICcts. 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. 



/<^;2// 



JANUARY, 1890 



No. 9. 



CONTENTS: 



MoLLUSKS OF THE San Francisco Makkkts. Prof. Josiah Keep. 

 A New Species of Limpet from Japan. H. A. Pilsbry. 



MOLLUSKS of THE UNITED STATES. John H. Canipliell. 



American Association of Conchologists. (Coniributed.) 

 General Notes. ...... 



Publications Received. ..... 



PAGE. 



. {)7 



. 101) 



. 101 



. 104 



. 107 



. 107 



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, Triibner & Co., 57 and 59 Ludgate Hil 

 Berlin, R. Friedlander & Son, 11 Carlstrasse. 



