132 PROCEEDINGS OF THE ACADEMY OF [1879. 



Cad! in a Pacifica, Bergh. 



7. Elements of the lip-plate or buccal plate. 



8. The same in another part,* L ^. 



9. Three rhachidian teeth,* ^. 



10. Median part of the radula ;* a, median plates ; 66, first laterals ; 



c, fourth lateral, "A 



1 1. Side view of a lateral tooth from the outer side,* 1 ~^. 



12. The same from the inner side,* 7 J. 



13. Largest lateral tooth,* ^p. 



14 Outer plates (teeth) of four rows;* aa, the outermost, . 



15. Four outer plates of one row;* a, the outermost, ~. 



16. Part of the cuticle with its spicula,* -^p. 



17. Theglans penis,* ^. 



18. Part of the penis,* *f. 



Jorunna Johnstoni (A. and H.). 



19. Lateral tooth,* ^. 



