(12G) 



Plate V. 



Bertiiella cranulata (Krauss). 

 Fi<;. 

 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. 



G. A plate of the rasp. 

 7. Upper half of a plate. 



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

 S. Piece of the denticulation of the hook. 350 x .) 

 9. The penis apparatus, o, a prostatic gland; 6, globular sac with duct; 



c, cylindrical sac ; </, prjsputium ; e, hammer-shaped glans. 



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



PlIILINE CAPEXSIS, B. 



11. The shell. 



12. A lateral plate of the rasp. 



13. The innermost 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 graxosa, 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. 

 2G. One of the outer plates. 



(Figs. 24-2G with Cam. 350 x .) 



