PLATE XV. 



YORKSHIRE SHELLS. 



Fig. 



1. Trochus monilitectus, p. 116. 



\a. — — magnified view. 



2. Turbo elaboratus, and Plate IX, fig. 27, p. 116. 

 2a. — — magnified view. 



3. Nerita pseudocostata, p. 114. 



3a. — — magnified view. 



4. Eulima levigata, p, ] 14. 



5. Cerithium Beanii, p. 112. 



6. Cerithium gemmatum, p. 115. 



7. Chemnitzia? vetusta, p. 114.* 



8. Chemnitzia? Scarburgensis, p. 115. 



9. Actaeon Sedgvici,j». 118. 



10. Actaeonina glabra, p. 120. 



11. Actaeon pullus, j». 118. 



12. Turbo Phillipsii, p. 117. 



12a. — — back view. 



12$. — — surface magnified. 



13. Actseonina gigantea, p. 119. 



14. Actseonina tumidula,^;. 120. 



15. Alaria composita, var. Phillipsii, and Plate III, fig. 5, p. Ill, and jy. 18. 

 15«. — — magnified view. 



16. Phasianella latiuscula, p. 117. 



17. Natica adducta, p. 112, front view. 

 17a. — — back view. 



18. Natica punctura, p. 112. 



1 8a. — — surface magnified. 



19. Phasianella striata, p. 118. 



20. Natica (Euspira)? cincta, /;. 113. 



21. 2la. Trochus? Leckenbyi, p. 115. (In Mr. Leckenby's collection.) 



* In this figure the costse near the suture are too much indented. 



