PLATE V. 



Fig. 



1. Cythere emarginata. Carapace of male, seen from left 



side. 



2. — — „ above. 



3. — — 5, „ below, 



4. — — „ front. 



5. — — ,, female, „ right side. 



6. — — „ separated valves. 



7. Cytliere tuberculata. Carapace of female, seen from left side. 



8. — — ■ „ „ above. 



9. — — „ „ „ below. 



10. — — „ „ „ front. 



11. — — „ male, left side. 



12. — — • „ hinge-margins. 



13. Cijihere Dunelmensis. Left valve of male, lateral view. 



14. — — ,) „ seen from above. 



15. — — „ „ „ below. 



16. — — „ „ „ front. 



17. — — „ „ „ inside. 



18. — — Right valve of female. 



19. — — „ young. 



20. — — Hinge-margins. 



21. Cytliere cosiata. Right valve of female, seen from out- 



side. 



22. — — „ „ above. 



23. — — Left valve of male, seen from outside. 



24. — — „ inside. 



(Loch Gilp.) 



(Dalmuir.) 

 (Greenock new Dock.) 



(Jordan Hill.) 



(Bridlington.) 

 (Bridlington.) 



(All magnified 40 diameters.) 



