(128) 



Plate VI. 



Thordisa punctulifera, B. 



FIG. 



1. Piece of the skin of the back. 



2. A tubercle of the same. 



3. Of the ihachidian part of the rasp. 



4. Outer part of two series of plates, aa, outermost. 



(Pigs. 2-4 by Cam. 350 x .) 



Doris perplexa, B. 



5. A plate of the rasp. 200 x . 



6. Outer end of a series of plates, a, outermost. 350 x . 



Doris pseudida, B. 



7. A plate of the rasp. 200 x . 



8. Outer end of a series of plates, a, outermost. 350 x . 



Doris glabella, B. 



9. Part of the gill. 



10. Part of the armature of the lip-disc. 



11. Inner part of a series of plates. «, innermost. 



12. A plate of the rasp. 



13. Part of two series of plates, each with a deformed plate. 



(Figs. 10-13 by Cam. 350 x .) 



Chromodoris euelpis, B. 



14. Elements of the lip-disc. 750 x . 



15. Plates of the rasp. 350 x . 

 IG. One of the largest plates. 



17. An outermost plate. 



(Figs. lG-17 with Cam. 350 x .) 



Chromodoris albolimb.\ta, B. 



18. A gill-leaf. 55 x . 



19. The bulbus pharyngeus, from the under side, with lip plates. 



20. Elements of the lip disc. 



21. Part of the middle of the rasp, aa, pseudo-plates. 



22. Innermost plates of the rasp. 



23. One of the largest plates. 



24. Outer end of a series of plates, a, outermost. 



Chromodoris, sp. 



25. Elements of the lip disc. 



26. Plates of the rasp. 



(Figs. 19-2G by Cam. 350 x .) 



