Art. 1. — M. Yokoyama 



Familij Nassidae. 



65. Nassa (Hima) japonica Ad 



66. Nassa (Hima) festiva Pow. 



67. Nassa (Hima) fraterculus 



Dkr. 



Family Columbclli'lae. 



68. Columbella (Atilia) bur- 



charcli Dkr. 



69. Columbella (Atilia) smithi 



Yok. 



70. Columbella (Atilia) turri- 



culata Yok. 



71. Cojumbella i Atilia) prae- 



cursor Yok. 



72. Columbella (Atilia) masa- 



kadoi Yok. 



73. Columbella (Mitrella) 



dunkeri Tryon. 



Family JShiricidae. 



74. Trophon pachyrhaphe Sm 



75. Trophon subclavatus Yok. 



76. Typhis arcuatus Hinds. 



77. Ocinebra falcata Sow. 



78. Ocinebra spectata Yok. 



79. Rapana bezoar L. v. thom- 



asiana Cr. 



80. Purpura heysiana Dkr. 



Family Tritonidae. 



81. Triton tenuiliratns Lke. 



82. Priene Oregon ensi s Eedf. 



Family CasKididae. 



83. Cassis strigata Gmel. 



Family Doliidae. 



84. Dolium luteostomum Küst- 



Family Cypraeidae. 



85. Erato callosa Ad. et Rve 



Family Strombidcp. 



86. Strombus japonlcus. 





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LIVING 



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Central and Western Japan. 



Northern, Central and Western 

 Jajjan. 



Northern, Central and Western 

 Japan. 



Western Japan. 

 Central Japan. 



Western Japan. 



Central Japan. 



Northern, Central and Western 

 Japan. 



Western Japan. 



(Very close to T. clavatus Sars 

 of boreal seas). 



Western Japan, China, Cape of 

 Grood Hope. 



Northern, Central and Western 

 Japan. 



Central Japan. 



Northern, Central and Western 

 Japan. 



Central Japan. 



Central and Western Japan. 



North. JajDan, Alaska, Oregon, 

 Chile, Strait of Magellan. 



Central and Western Japan. 



Centi'al and WestrTn Japan, 

 Indian Ocean. 



Central and Western .Japan, 

 China. 



Central and Western .Japan, 

 Bonins. 



