1908.] NATURAL SCIENCES OF PHILADELPHIA. 453 



the faiinse of ^Quelpart and Tsushima. By the prevalence of Henii- 

 phcedusa, Ganesella and Plectotropis, Tsushima is wholly Japanese in 

 its snail fauna, while Quelpart is as unequivocally Korean. The 

 political boundaries of Japan and Korea coincide therefore with the 

 faunal limits. The largely deforested condition of Quelpart and Korea 

 is probably responsible for its rather poor land shell fauna. 



In the following table, the "Korea" column is compiled from Dr. 

 von Moellendorff's paper and the collections of Mr. Hirase, deter- 

 mined by the author. The column "Korean Archipelago" contains 

 a few species reported with that indefinite locality by Pfeiffer and A. 

 Adams. The "Quelpart" column contains species collected by Mr. 

 Kuroda, part of them identified by the writer, the others quoted from 

 Mr. Kuroda's list.^ The "Matsushima" (Dagelet Island) species were 

 recorded by Arthur Adams, who visited that island when surgeon on 

 board H. M. S. "Actseon." In the column of "Remarks" sundry 

 notes on the affinities of the species find place. 



^ The Conchological Magazine, II, June, 1908, pp. 25-29. 



