1879.] NATURAL SCIENCES OF PHILADELPHIA. 131 



7. Similar covering with well preserved " palisades,"* 4'". 



8. Elements of the same,* ~. 



Cadlina repanda (A. and H.). 



9. Elements of the buccal plate from above,* 1 j 9 . 



10. The same from the side,* ". 



11. The median part of the radula;* a, median tooth; 66, first 



laterals, ^f 2 . 



12. The same with four median teeth,* a and 6, as above, ^y 5 . 



13. A median tooth,* *. 



14. Third lateral tooth from the side,* ^p. 



15. Outer part of four rows, with one to three teeth;* a, outer- 



most tooth, ^n- 



16. Median part of the radula from below ;* a, median teeth, ^. 



17. a, pyloric part of the intestine; b, the vesica fellea; c, lobes 



of the hermaphroditic gland. 



18. Everted glans penis;* a, continuation of the armed cuticle of 



the anterior part; 6, interior of the spermato-duct, ~. 



Cadlina Pacijica, Bergh. 



19. The anal papilla. 



20. Anterior part of the salivary gland; a, duct. 



Plate VIII. 

 Akiodoris lutescens, Bergh. 



1. Part of the radula with three to six rows of teeth;* a, 



rhachidian tooth; 6, first lateral; c, second; d, third; <?, 

 fourth, &p. 



2. The remainder of these three rows of teeth ;* from a, the fifth, 



to the twelfth and outermost tooth, ^p. 



Cadlina repanda (A. and H.). 



3. The seventeenth to the twentieth teeth of two rows,* ~. 



4. The outermost teeth of seven rows,* -f 



5. Part of the glans penis,* 1 ^ A . 



6. Some of its isolated hooks,* . 



'50 



