Plate XVII. 



Figs. 1, 2, 3. Pectnncnlus alboliueatas Lke. Ötake 1, 8. Left valves. 2. Eight 



valve. P. 188. 

 Fig. 4. Le.la confiisa Haul. Left valve. Tega. P. 195. 

 Fig. 5. Limopsis woodwardi Ad. Left valve. Tega. P. 192. 

 Figs. 6, 7. Limopsis areolata Yok. Shitö, 6. Left valve. 7. Right valve. P. 



194. 

 Figs. 8, 9. Cucullaria orieutalis Yok. Shitö. 8. Right valve. 9. Left valve. P. 



191. 

 Fig. 10. Yoldia uotabilis Yok. Right valve. Ötake. P. 196. 

 Figs. 11, 12. Eudesia grayi Dav. Shitö. 11. Ventral valve. 12. Dorsal valve. P. 



199. 

 Figs. 13. Rhyuchonella psittacea Chem. var. woodwardi Ad, a. Dorsal view. b. 



Ventral view. P. 200. 

 Fig. 14, Lithophaga zitteliana Dkr. Ötake. Fragment of a right valve. P. 175. 

 Fig, 15. Pecten tenuicostulatus Yok, Shitö. Left valve. P. 184. 

 Figs. 16, 17. Limopsis nipponica Yok. 16. Left valve. 17. Right valve. Kioroshi. 



P. 195. 

 Figs. 18, 19, Lima vulgatiila Yok. Shitö. 18. Right valve. 19. Left valve. P. 



179. 



