(126) 



Plate V. 

 Berthella oranulata (Krauss). 



FIG. 



1. Point of elements of mandible. 



2. Element from the side. 



3. Plate of the rasp. 



4. One of the largest plates. 



(Figs. 1-4 by Cam. 350 x .) 



Philine aperta (L.). 



5. Salivary gland. 



6. A plate of the rasp. 



7. Upper half of a plate. 



(Figs. 6-7 by Cam. 200 x . ) 



8. Piece of the denticulation of the hook. .3.50 x .) 



9. The penis apparatus, a, a prostatic gland ; b, globular sac with duct ; 



c, cylindrical sac ; d, prfeputium ; e, hammer-shaped glans. 



10. The freely projecting hammer-shaped glans. a, end of prostatic gland. 



Phieink capensis, B. 



11. The shell. 



12. A lateral plate of the rasp. 



13. The innermo.st of the two outermost plates. 



14. The outermost. 



(Figs. 12-14 drawn by Cam. 350 x .) 



15. A stomachal plate from the inside. 20/1. 



Archidoris granosa, B. 



IG. Nodules of the back. 



17. A plate of the rasp. 



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



Diaulula capensis, B. 



19. A piece of the .skin of the back. 55 x . 



20. Tubercles of the same. 



21. A plate of the rasp. 



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



(Figs. 21-22 by Cam. 200 x .) 



Diaulula ? ? morosa, B. 



23. A tubercle of the back. 



24. A plate of the rasp. 



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



26. One of the outer plates. 



(Figs. 24-26 with Cam. 350 x .) 



