Plaie XIX. 



Figs. 1, 2. Limopsis adamsiana Yok. Enlarged. Eight valves, a. Outside, b. 



Inside, c. Showing depth. Koshiba. p. 175. 

 Fig. 3. Leda ramsayi Smith. Enlarged. Left valve, a. Outside, b. Inside, c. 



Showing depth. Koshiba. p. 176. 

 Figs. 4, 5. Leda gordonis Yok. Enlarged. 4. Left valve. 5. Eight valve, a. 



Outside, b. Inside, c. Showing depth. Naganuma. p. 177.' 

 Fig. 6. Leda naganunmna Yok. a. Eight valve, b. Left valve. Both showing 



outside, c. Showing thickness. Naganuma. p. 178. 

 Figs. 7, 8. Nucula insignis Adams. 7. Eight valve, backside. 8. Left valve, a. 



Outside, b. Inside, c. Showing depth. Koshiba. p. 179. 

 Fig. 9. Nucula mirabilis Ad. and Eve. Left valve, a. Outside, b. Inside, c. 



Showing depth. Nojima. p. 180. 

 Figs. 10, 11. Nucula tokyoensis Yok. Enlarged. 10. Left valve. 11. Eight valve. 



a. Outside, b. Inside, c. View from behind, showing area. Naga- 

 numa. p. 181.; 

 Figs. 12-14. Terebratulina crossii Dav. a. Ventral view. b. Dorsal view. Koshiba. 



p. 181. 

 Figs. 15-18. Terebratulina caput-serpentis L. 15, 17, 18. Dorsal view. Koshiba. 



16. Ventral view. Kami-Miyata. p. 182. 

 Figs. 19-24. Terebratulina quantoensis Yok. 19, 20, 22, 23, 24. Views taken from 



the dorsal side. 21. Dorsal valve, outside. Koshiba. p. 188. 

 Fig. 25. Terebratella coreanica Ad. et Eve. Dorsal valve, outaide. Shimo-Miyata. 

 Fig. 26. Terebratella pulvinata Dav. a. Dorsal view. b. Ventral view. Shimo- 

 Miyata. p. 185. 

 Fig. 27. Terebratella nipponensis Yok. Enlarged, a. Dorsal view. b. Ventral 



view. c. Lateral view T . d. View from below. Koshida. p. 185. 

 Fig. 28. Terebratella coreanica Ad. et Eve. a. Dorsal view. b. Ventral view. c. 



Lateral view. Shimo-Miyata. p. 184. 



