130 PROCEEDINGS OF THE ACADEMY OF [1879. 



7, 8. Third and fourth teeth from beneath,* ^|. 



9, 10. Fourth and fifth teeth obliquely from the side,* *|". 



11. The fifth tooth from above,* ^. 



12, 13. The seventh and eighth teeth from below,* ^. 



Akiodoris luteseens, Bergh, var. 



14. Rhachidian tooth from below,* 3 \. 



15. First lateral tooth of two rows,* 3 \. 



16. The sixth tooth from one side,* ^-p. 



17. a, the ventricle; fr, the proceeding intestine; c, the biliary 



sac : c?, the liver. 



18. a, yellowish part of the spermato-duct; b, thinner continua- 



tion ; c, penis; d, duct of the sperraatotheca ; e, vagina of 

 vestibulum. 



19. a, spermatotheca; &, spermatoc} r sta; c, long duct of the mucus 



gland ; d, diict of the vagina, directly continuous with d of 

 fig. 18. 



20. Longitudinal section of the wall of the glans penis;* the hooks 



partly broken off and their sockets naked, if 9 . 



Cadlina repanda (A. and H.). 



21. Spoon-shaped process of the upper part of the vestibulum 



from below. 



22. The same from above. 



Plate YII. 



Akiodoris lutescens, Bergh. 



1. Upper part of the interior of the glans;* a, outer wall, ^. 



2. Part of the covering of the glans with its hooks,* ^f 2 . 



3. Covering, with hooks, from the anterior end of the inverted 



part of the glans;* a, posterior; 6, more anterior por- 

 tions, ^p. 



4. Similar hooks from the anterior part,* -\-. 



5. Anterior end of spermato-duct and posterior part of the in- 



verted penis;* aa, walls of the spermato-duct; 6, end of the 

 same ; e, most posterior part of the penis with its hooks, 1 ~. 



6. Covering of the vagina with its rod-like palisades ;* at a and 



other places they have been torn away, leaving only their 

 stiff axes, -p. 



