THE CALIFORNIAN LAND SHELLS OF THE EPIPH- 

 RAGMOPHORA TRASKH GROUP 



BY 



PAUL BARTSCH 



Curator, Division of Marine Invertebrates, United States National Museu 



No. 2170. — From the Proceedings of the United Stales National Museum, 

 Vol. 51, pages 609-619, %vith Plates 114-117 



Published December 21. 1916 



DEC 2/ 1916 



Washington 



Government Printing Office 



1916 



