145 
EXPLANATION OF PLATE XXVI. 
Fig. 10. Cadulus acuminatus, Tate, rachidian, from the back. 
Fig. 15. Cadulus acuminatus, Tate, rachidian, from the front. 
Fig. le. Cadulus acuminatus, Tate, rachidians, side view: dia- 
grammatic. 
Fig. 2. Cadulus acuminatus, Tate, lateral. 
Fig. 8.  Cadulus acuminatus, Tate, marginal. 
Fig. 4. Cadulus acuminatus, Tate, young. 
Fig. 5. Cadulus acuminatus, Tate, adult. 
Fig. 6. Cadulus acuminatus, Tate, adult, turned round. 
Fig. 7 Cassidea sinuosa, Verco, profile. 
Fig. 8. Cassidea sinuosa, Verco, ventral view. 
Fig. 9. Cassidea sinuosa, Verco, protoconch. 
Fig. 10a. Cassidea sinuosa, Verco, marginals. 
Fig. 10b. Cassidea simuosa, Verco, lateral. 
Fig. 10c. Cassidea sinuosa, Verco, rachidian. 
Fig. 11. Stephopoma nucleogranosum, Verco, adult. 
lig, 12. Stephopoma nucieogranosum, Verco, young. 
Fig. 13. Stephopoma nucleogranosum, sete from operculum. 
Fig. 14a. Dentalium intercalatum, Gould, var. Bednalli, Pilsbry, 
Fig. 140. Dentalium intercalatum, Gould, var. Bednallı, Pilsbry, 
rachidian. 4 
Fig. 14c. Dentalium intercalatum, Gould, var. Bednallı, Pilsbry, 
margmal. : 
Fig. 14d. Dentalvum intercalatum, Gould, var. Bednalla, Pilsbry, 
accessory plate. | 
Fig. 15. Liopyrga octona, Tate, operculum. a.a, Marginal 
fringe. b.b. Spirals. у. 
Fig. 16. Liopyrga octona, Tate, rachidian and laterals, one 
Fig. 17. Liopyrga octona, Tate, last marginal. 
Fig. 18. Liopyrga octona, Tate, first marginal. 
Fig. 19. Cancellaria pergradata, Verco.. : 
Fig. 20. Nacella crebrestriata, Verco, side view. 
Fig. 21. Nacella crebrestriata, Verco, dorsal view. 
