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Plate VII. 

 Pleurophyllidia euchroa, B. 



FIG. 



* 1. First lateral plate. 



2. A plate from the middle of a series. 



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



(Figs. 1-3 by Cam. 350 x .) 



4. Everted vestibulum with vulva and glans penis. 



5. Glans penis. 55 x . 



Janolus capensis, B. 



6. An epinotidium. 



7. Upper end of rhinophore. 



8. Anal papilla with a rectum. 



9. Left mandible from the inside. 4/1. 



10. The same from the outside. 



11. The bulbus pharyngeus, from the under side. 



12. Left mandible of another individual, from the inside. 4/1.* 



13. The same from the outside. 



14. Crest anteriorly on the upper side of the lamina between the fore-end of 



the mandibles. 



15. Cartilaginous plates between the hinder end of the mandibles, from the 



side. 



16. The same, from beneath. 



17. A median plate of the rasp, from beneath. 



18. A lateral plate. 



19. One of the largest lateral plates. 



(Figs. 17-19 with Cam. 350 x .) 



20. The posterior intestinal mass (liver, &c), from beneath, a, oesophagus. 



21. The penis. 



