26 



A KIR A IIZUKA. 



to doubt. I hold it highly probable that should known species of 

 Pontodrilus be subjected to renewed investigations, the same condition 

 as ascertained by me in the Japanese species will be revealed. With 

 this belief I have preferred to refer my specimens to Pontodrilus rather 

 than to create a new genus for its reception. 



The species is certainly an undescribed one, so that I propose to 

 call it Pontodrilus matsushimensis. 



In conclusion I wish to offer my thanks to Prof. IjlMA for his kind 

 supervision of my work. 



November 23rd, 1897. 



