PLATE XXIII. 



Fig. I. Maxilla of Cancellaria crenifera Sow. 



Fig. 2. Teeth of radula of Mitra Mariae A. x\ds. 



Fig. 3. Teeth of radula of Mitra crenifera Lam. 



Fig. 4. Teeth of radula of Mitra coriacea Rve. 



Fig. 5. Teeth of radula of Strigatella pauper ciila Lin. 



Fig. 6. Teeth of radula of Turricula vidpecida Lin. 



Fig. 7. Teeth of radula of Tnrricida cruentata Chemn. 



Fig. 8. Teeth of radula of Turricula spicata Rve. 



Fig. 9. Teeth of radula of Fusiis Thielei n. sp. 



Fig. 10. Teeth of radula of Fusus chrysodornoides n. sp. 



Fig. II. Teeth of radula of Chrysodomus (Sipho) Smithi n. sp. 



Fie. 12. Teeth of radula of P/ios roseatus Hinds. 



