408 PROCEEDINGS OF THE ACADEMY OF [July, 



EXPLANATION OF PLATES XIX, XX, XXI. 



Plate XIX (figures natural size), Fig. 1. — Vemis Idrasei. pp. 205, 400. 



Fig. 2. — Area nipponensis, pp. 209, 403. 



Figs. 3, 4. — Petricoln cyclus, pp. 204, 400. 



Fig. 5. — Tapes plienax, p. 207. 



Fig. 6. — Tapes platyptycJui, p. 206. 



Fig. 7. — Peiricola cyclus var. scuJpturata, p. 205 (Ceylon). 



Fig. 8. — Tellina pristiformis, p. 400. 



Fig. 9. — Anatina wipura, pp. 208, 402. 



Figs. 10, 11. — Acmcea heroldi v?kv. n(jiiat<t, p. 202. 



Fig. 12. — Lima Mans var. hirasei, pp. 209, 402. 



Fig. 13. — Solen roseomaculatus, p. 399. 



Figs. 14, 15. — CeritMum chemnitziaiium, p. 393. 



Fig. 16. — Echinella cumingi hichuana, pp. 198, 394. 



Fig. 17. — Euthria Jiokkaidonis, p. 389. 



Fig. 18 — Peristernia tistulata var. luchuana, pp. 197, 390. 



Plate XX (fig. 19 much enlarged, the others natural size), Fig. 19. — 

 Donax kiusiuensis, p. 400. 

 Fig. 20. — Venus hirasei, p. 400. 



Fig. 21. — G?irysodomus intersculptus \a.T. frater, pp. 197, 391. 

 Fig. 22. — Buccinmn Jiirasei, p. 391. 

 Fig. 23. — Chrysodomus pericocJilion, p. 391. 



Plate XXI (figures much enlarged). Fig. 24. — Tritonidea submen- 

 keana, p. 387. 

 Fig. 25. — Syrnola bacillum, p. 394. ^ 



Fig. 26. — Daphnella frag His var. artieulata, p. 365. 

 Fig. 27. — Turhonilla taricifera, pp. 198, 395. 

 Fig. 28. — Mitra vanattai, p. 387. 

 Fig. 29. — Eulima luchuana, p. 396. 

 Fig. 30. — Eulima dunkcriana, p. 395. 

 Fig. 31. — Mitra hizenensis, p. 386. 

 Fig. 32. — Cantharidus hirasei, p. 199. 

 Fig. 33. — Vanthctriilus hislalteatus, p. 199. 

 Fig. 34. — Clanculus (jemmulifer, p. 200. 

 Fig. 35. — Clanculus hizenensis, pp. 201, 398. 

 Fig. 36. — Columhella misera Y&x. calif arnica, p. 390. 

 Figs. 37, 38. — Colmnhella miser a, p. 389. 

 Fig. 39. — Columhella misera var. polynyma, pp. 196, 390. 



