THE C0NGH0L0Q1GAL MAGAZINE VOL. 111. PL. 



i^wm^mmmm 



l-) c 



IWAKAWA; JAPANESE CORBICULA (I) (— ^)IRSl^*t3 



7. C- oitholonta rils. A.knshi. 

 J. C- japonica Frirne. Awa. 



!. loana l'rime. Uwari- 



2 



ylc. loana Prime. Kahokugata 



1 C- sandai Reinh. Seta. 



l'\& orthodonta 1'ils. Tokyo. 



u.J . 



13, 14. C. viola 1'ils. chikuma-naiko, Onu 



