f'(i71) i»1%**fllS^H IS =^ + ^ ^ tsu u 



Norn. Jap. Shizukiigai (Htk.). 



Dist. Hakodate Bay (Stimp.) ; Enoshiraa(6520) ; Awaji (4532) ; Fiikura 

 (6167) ; Hirado (Hie.). 

 (420.) Theora iridescens HiNDS. 



Chall. Lamell., XIII, p. 89, pi. 5, f. 6. 



Nom. Jap. ? 



Dist. Yobuko (A. Ad.). 

 (421.) Theora fi'iigiUs A. Ad.= JFJnflopleitra nitida Gld. 



r. Z. S., 1855, p. 226 ; Otia Conch., p. 162. 



Nom. Jap. ? 



Dist. Japan (A. Ad.). 

 (422.) Ijeptotnya spectahilis HanleY. 



P. Z. S., 1882, p. 576 ; .Tour. Linn. Soc, XVI, 1883, pi. 12, f. 7. 



Nom. Jap. ? 



Dist. Japan (Mus. Hanley.). 

 (423.) Ijepfoinya cochlearis HiNDS. 



r. Z. S., 1844, p. 98. 



Nom. Jap. ? 



Dist. Goto ; Seto-Uchi (A. Ad.). 

 (424.) Leptotnya (Scrobicufaria) adunca Gould. 



OtiaConch., p. 167. 



Nom. Jap. ? 



Dist. Tsushima (A. Ad.). 

 (425.) Tjufrieola (Jacra) Japonica A. Ad. 



Ann. Mag., 1864, ]>. 308. 



Nom. Jap. ? 



Dist. Okinoshima (A. Ad.). 



Fam. 13. MACTRIDAE. 



m-hH^ W) m n n 



A Subfam. 1. MACTRINAE. 



mV-iUJ^I M ± jlJi ^1- 



426. JUactrn sachfitinvusig ScHRENCK^itf. Inhdorjii Dkii. 



.^\ 



