PLATE VI. 



Fig. 





1. 



Natica intermedia, p. 41, front view. 



la. 



— — back view. 



2. 



Natica Michelini, p. 44, front view, elongated variety. 



2a. 



— — back view, elongated variety. 



3. 



— — another example, front view. 



3a. 



— — another example, back view. 



4. 



Natica neritoidea, p. 43. 



5. 



— ambigua, p. 44. 



6. 



— Verneuili, p. 44, front view. 



6a. 



— — back view. 



7. 



— — young shell, front view. 



la. 



— — y oim g shell, back view. 



8. 



Natica (Euspira) pyramidata, p. 46, front view. 



8a. 



— — — back view. 



9. 



Natica (Euspira) coronata, p. 46. 



10. 



— formosa, p. 42. 



11. 



— Tancredi,jo. 42. 



12. 



— grandis, p. 41. 



13. 



Natica (Euspira) subcanaliculata, p. 47. 



14. 



Natica globosa, p. 43. 



