PLATE XIV. 



Tig. 



1. Cythere macropora. Carapace, seen from left side. 



2. — — „ „ above. I X 40 (Hopton ClifiF.) 



3. — — „ ,, below. ) 



4. Cythere Hojjtonensis. Left valve, seen from outside. ^ 



5. — — „ „ above. V X 40 (Hopton Cliff.) 



6. — — Right valve, seen from outside, j 



7. Cythere cicatricosa. Carapace, seen from left side. "^ 



9: = - tZl: x « (Hopton cuif.) 



10. — — „ front. J 



11. Loxoconclia midtifora. Carapace, seen from left side. ^ 

 Via. — — „ „ above. V X 60 (Bristol.) 

 12 3. — — „ 5, below. ) 



13. Cy tlieropter 071 Montr osiense Carapace, seen from 



left side. 



14. — — above. \ X 50 (Errol.) 



15. — — below. 



16. — — „ front. 



17. Cytheropteron rectum. Carapace, seen from left side. X 60 (Recent: Westport.) 



18. — — „ „ above. X 60 (Cardiff Dock.) 



19. Cytheropteron arcuatum. Carapace, seen from left side. ^ 



Ji. = = :; ;: tz. x 50 (D^yieys.) 



22. — — „ „ front. J 



23. Loxoconcha elliptica. Carapace of male, seen from left side. ) . ,a at i-v i n 



24. - - „ „ above, j X 40 (Govan New Dock.) 



25. - - „ female, seen from left I ^ 40 (Cardiff Dock.) 



26. Cytheropteron injlatum. Carapace, seen from left side. '^ 



S: = = :: :; ^ow. x 40 (D.,ieys., 



29. — — 35 j5 front. ) 



30. Loxoconcha frayilis. Carapace of male, seen from left side. 



31. — — Left valve of female, seen from out- 



side. [ X 60 (Paisley.) 



32. — — ,, „ (outline), seen 



from above. 



