4 6 XUDIERAXCHIATF. GASTEROPODA. 



PI. III. 



Doridoxa Ingolflana, Bgh. 



Fig. i. The middle part of the radula, from above, a median teeth, b innermost lateral tooth. 



— 2. Similar part, partly lateral view, a and b as in fig. i. 



3. Outermost part of two series of teeth, aa outermost tooth-plate. 

 Figs. 1 — 3 drawn with earn. Inc. x 350 diam. 



Candiella Ingolflana, Bgh. 



Fig. 4. A piece of the masticatory edge of the mandible, a the free edge, x 200 diam. 

 5. A piece of the middle part of the radnla, a median tooth. 



— 6. One of the largest lateral teeth. 



7. The outer end of a series of teeth, a outermost tooth. 



Figs. 5 — 7 drawn with Cam. Inc. x 350 diam. 



— 8. a Seminal vesicle, b its duct. 



9. a Seminal duct, b penis bag with the glans penis situated in its cavity. 



Atthila Ingolflana, Bgh. 



Fig. 10. The fore end of the body with the oral aperture, tentacles, and fore edge of the foot. 



n. The two-lipped sheath of the rhinophore, between the two unequally long lobes the point 



of the club of the rhinophore is seen. 

 12. The central nervous system, drawn with cam. Inc. x 55 diam. a cerebro-pleural ganglia, 



b pedal ganglia, c buccal ganglia, d the large common commissure, e the buccal commissure. 



— 13. Otocyst. X 350 diam. 



— 14. The bulbus pharyngeus from above, the pharynx removed, so that the tongue is laid bare, 



a the region of the fore end of the mandibles. 



— 15. The mandibles, from before, a the hinge-part. 8 ,. 



— 16. The hinder end of the inaudible, x 100 diam. 



- 17. The hindmost part of the masticatory edge of the same, x 100 diam. 

 18. The tongue, from below, with radula. 



■ 19. Median tooth from three series of teeth. 



— 20. The first lateral tooth. 



— 21. A similar one in another position. 



- 22. a two median teeth, and b first lateral tooth, lateral view. 



- 23. The ninth and tenth lateral teeth (counted from the median tooth) of two sei-ies. 



- 24. One of the largest lateral teeth. 



- 25. The outer end of a series of tooth-plates with 5 tooth-plates, a the outermost one. 



Figs. 19 — 25 drawn with cam. luc. x 350 diam. 



— 26. Dorsal papilla. 



