TWO NEW LAND SHELLS FROM THE 

 WESTERN STATES 



BY 



PAUL BARTSCH 



Curator, Division of Marine Invertebrates, United States National Museum 



No. 2155. — From the Proceedings of the United States National Museum, 

 Vol. 51, pages 331-333, with Plate 31 



Published November 24, 1916 



N0V2 51916 



Washington 



Government Printing Office 



1916 



