A NEW MOLLUSK OF THE GENUS PISIDIUM FROM 



ALASKA, WITH FIELD NOTES BY 



G. DALLAS HANNA 



BY 



VICTOR STERKI 



Of New Philadelphia, Ohio 



No. 2160. — From the Proceedings of the United States National Museum, 

 Vol. 51, pages 475-477 



Published December 16, 1916 



DECl 61916 



Washington 



Government Printing Ofl&ce 



1916 



