JAPANESE MOLLUSKS, PTERIACEA. , HJ 



€nd 251 mm. Var. " lotorhm," length of hinge-line 152 mm. ; ob- 

 hque length from beak to lower end 265 mm. 



Pteria japonica Dunker. Conchyl. Cab., p. .33, pi. 10. f. 5. 



Japan Sea (Dkr.). 

 Meleagrina martensii Dkr. Index, p. 229, pi. lo, f. 7 8. 

 Meleagrina japonica Dunker. Conchyl. Cab., p. 66. pi. 23, f. 2 3\ 



Nagasaki (Lischke) ; S. coast of Kii (Stearn.s).' Girls dive 

 for these shells, which produce numerous pearls. 

 Meleagrina fucata Gould. Conchyl. Cab., p. 4<), pi. 17, f. 2. 



Nagasaki. 



Malleus albus Chemn. C. Icon., pi. 1. f. l. 



Inland 8ea (Stearns) ; Nagasaki (Lischke). 



Malleus regula Forskal. Inland Sea (Dkr.). 



Malleus (Malvufundus) irregularis Jousseaume. Le xVaturaliste, XVI, lS9i, p. 



Japan. 



PERNID.ffi;. 

 Perna perna Linne. Nagasaki (Lischke, J. M. C, II, p. 153). 

 Perna costellata Conrad. Hakodate (Schrenck). 



PINNIDJE. 

 Pinna chemnitzii Hanley. Reeve. Conch. Icon., pi. 1. 



Yedo, Nagasaki (Lischke) ; Kishiu coast (Stearns). 



The specimens are narrower than Reeve's figure 1 b, and lack the 

 projecting scales along the hinge-margin. Dunker reports ehem- 

 nitzn from Yokohama and Tokvo. 

 Pinna bicolor Chemn. Conchyl. Cab., VIII, pi. 90, f. 780. 



Japan (Dkr.). 



Pinna fimbriatula Rve. C. Icon., sp". 63. Japan (Cuming). 



Pinna saccata Linnc. Japan (Dkr.). 



Pinna japonica Hanley. Conchyl. Cab., p. 72, pi. 24, f. 3; pi. 29, f. 1 



Yokohama Bay, Yedo, Nagasaki (Lischke). 



Pinna nigrina Lamarck. Rve., Conch. Icon., f. 4. (P. nigra). 



Tokyo Harbor (Stearns). The largest shell measures, length 365 

 breadth 24U mm. It is smooth outside except for low radii near the 

 beaks. Ihe smaller specimens are strongly scaled as in Reeve's ficr. 

 lire. *= 



