mm?) "nmmw' 



^}\\MizU^^ '' Preliminary Cata- 

 logue of Marine Shells in th Collec- 

 tion of the Nat. Hist. Dept., To- 

 I't/o Imp. Household Museum," 

 part 1, Tokyo, 1900 [^M'H?^lf 



^/ll^icSP, " Catalogue of Japa- 

 nese Mollusca in the Natural His- 



tory Dept., Tokyo Impt. Museum,'^ 

 Tokyo, 1909. [^M'^^M^^^I^t 



[50]- 



