REFERENCE TO PLATES. 195 



FIGURE. PAGE. 



15,16. Pleurotoma kamakurana n. sp. ..... 16 



17. Cassis achatina var. inornata n. v. . . . , . 49 



PLATE 3. 



1. Aspergillum giganteum Sowb 136 



2, 3. Anatina kamakurana n. sp 138 



4,5. Raeta yokohamensis n. sp 119 



6, 7. Diplodonta japonica n. sp 132 



8, 9, 10. Area Stearnsii n. sp 148 



11, 12. Entodesma truncatissima n. sp. . . . . . 137 



13, 14. Loripes bialata n. sp 133 



15, 16, 17. Sphserium heterodon n. sp 159 



18,19. Kellia japonica n. sp. ....... 132 



PLATE 4. 

 1, 2. Thylacodes Medusae Pilsbry, 59 



PLATE 5. 

 1. Thylacodes Medusae Pilsbry, 59 



PLATE 6. 



1,2,3,4,5. Macroschisma Lischkei n. sp 108 



6, 7, 8. Macroschisma sinensis A. Adams, . . . .107 

 9, 10. Chlorostoma turbinatum A. Adams (rugatum Gld). . 94 



11,12. Chlorostoma umbilicatum Lischke, . . . .93 

 13, 14, 15, 16, 17, 18. Acmsea Heroldi Dkr. varieties, . . Ill 



19, 20, 21, 22. Siphonaria acmseoides n. sp 6 



23, 24, 25, 26, 27, 28. Siphonaria sirius n. sp 5 



29, 30. Phasianella (Orthomesus) modesta Gld. . . .91 



31. Phasianella modesta var. Gouldii n. v 91 



32. Nerita helicinoides var. laevilabris n. v. . . . .177 



PLATE 7. 



1,2. Helcioniscus nigrisquamatus Rve. (young) . . .112 



3. Helcioniscus nigrisquamatus v. boninensis Pils. . . 112 



4, 5, 6. Helcioniscus Stearnsii Pilsbry, 112 



7, 8, 9, 10. Helcioniscus eucosmius Pilsbry, , . . .112 



