52 ART. 2. A. ÏOKUNAGA. 



LUCINID/E. 

 131. LUCTNA BOKKALLS Linnk. 



Brauns, Geol. Env. Tokio, p. 44. — Wood, Crag Mollusca, II., p. 139. 

 — Weinkauff, Concli. Mitteliiieer., I., p. 162. — Hörnes, Tertiäc- 

 hecken Wien, II., p. 299. — (tcoI. Surv. California, Paîtront. II. — 

 Jeffrey, Moll. Lightening and Porcup. Exp. 



<>ji (very abundant), Shinagawa (frequent). 



This species is widely distributed, but now entirely extinct 

 in Japan. It also occurs rarely in the Miocene (Italy, Austria, 

 Poland, America) and in the Pliocene (Italy, Belgium, England, 

 Norway, America etc.) In Diluvium it is found in Norway, 

 Iceland, Sweden, Great Britain, Ireland, throughout Continental 

 Europe to Mogador and Rhodus ; Santa Barbara, San Pedro, 

 Dead Man's Is., San Diego (America). 



Living specimens are only rarely met with in the Mediter- 

 ranean, viz. on the coast of Piedmont, Corsica, Sicily and 

 Algeria. But in the Atlantic Ocenn it is quite frequent, especi- 

 ally in Norway, Great Britain, Holland, France and North 

 America. In the Pacific, it is found on the north-west coast 

 of America although not at all frequent. From the above, 

 it will be seen that this species mostly occurs in the arctic 

 regions. 



132. VlXYVnWMYS CFR. FLEXrOSUS Mont. 

 ÏRYON, Struc. and Syst. Conch., III., p. 211. 



Shinagawa (rare). 



C\ flexuosus Mont, was found living at Hakodate. 



