EXPLANATION OF PLATES. 223 



FIGURE. PAGE. 



62. Calocochlea mindanaensis Sowb. Conch. Syst., . . 148 



63. Helicobulinus turbinoides Dh. Conch. Syst., . .196 



PLATE 48. 



65. Calocochlea ponderosa Pfr. Conch. Icon., . . .147 



66, 67. Helicobulinus grandis Pfr. (carolus Dh.). J. de C., . 195 



68. Helicobulinus grandis Pfr. Specimen, . . . .195 



69. Ptychostylus cepoides Lea. Specimen, . . . .194 



70. 71. Calocochlea matruelis Sowb. Specimen, . . .151 

 72. Calocochlea difficilis Pfr. Conch. Icon., .... 151 



PLATE 49. 



25-28. Orthostylus ticaonica Brod. Specimens, . . . 203 



29. Helicobulinus turbinoides Dh. Specimen, . . .196 



30. Orthostylus lignaria Pfr. Specimen, .... 204 



PLATE 50. 



1. Trachystyla cryptica Brod. Specimen, . . . .167 



2. Calocochlea calliaudi Dh. Conch. Icon., . . .144 



3. Calocochlea calliaudi Dh. Specimen, . . . .144 



4. Calocochlea depressa Semp. Conch. Icon., . . .149 



5. Calocochlea depressa Semp. Couch. Cab., . . .149 

 6-8. Calocochlea depressa Semp. var. Specimen, . .150 



PLATE 51. 



9. Trachystyla -cryptica Brod. Conch. Icon., . . .167 



10. Trachystyla latitans Brod. Conch. Icon., . . .167 



11. Trachystyla latitans Brod. Specimen, . . . .167 



12. Trachystyla cretata Brod. Conch. Icon., . . .168 



13. Trachystyla dataensis Semp. J. de C., . . . . 169 



14. 15. Trachystyla dataensis Semp. Specimen, . . .169 

 16. Calocochlea lalloensis Pfr. Specimen, .... 136 



PLATE 52. 



17-19. Calocochlea denticulata Jay. Type specimen, . . 131 



20,21. Calocochlea albaiensis Sowb. Conch. Cab., . . 132 



22. Calocochlea generalis Pfr. Novit. Conch., . . .137 



23, 24. Calocochlea decora Ad. & Rv. Voy. Samarang., . 133 



25. Calocochlea festiva Don. Conch. Cab., . . . .134 



26. Calocochlea calliaudi Dh. var. J. de C., . . .144 



27. Calocochlea calliaudi Dh. var. Tr. Am. Phil. Soc., . 144 



PLATE 53. 



28. Calocochlea circe Pfr. Specimen, 142 



29. Calocochlea circe Pfr. Conch. Icon., . . . .142 



