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Plate XIV. 



Tritonia pallida, Stimpson. 



FIG. 



1. Median and five innermost plates. 



Tritonia indecora, B. 



2. Median and first lateral plate, 



3. Two plates of the outer part of a series. 



DORIOPSIS capensis, B. 



4. Hooks of the armature of the penis. 



(Figs. 1-4 drawn by Cam. luc.) 



Marsenia perspicua (L.). 



5. Mandibular plate. 55 x . 



6. Hinge part of the same. 200 x . 



7. Piece of the rasp. 



8. Point of a lateral plate. 



(Figs. 7-8 drawn by Cam. 350 x .) 



9. Penis. 



Dolabella Rumphii, (Cuv.) Rang. 



10. Part of the margin of the hinder disc. 



11. A papilla of the back. 



12. The shell, from the upper side. 1/1. 



13. The nucleus, from the under side. 



14. Median plate. 200 x . 



15. Median plate. 350 x . 



16. Lateral plates, from the middle of a series. 



17. The two outermost plates. 



18. Thorns from the palate. 



(Figs. 16-18 drawn by Cam. 200 x .) 



19. Elements of the mandibular plates. 350 x . 



20. Prickles of the cardia of the second stomach. 



