PLATE XV. 



Fig. 



1. Bairdia iiiflata. Carapace, seen from left side. ^ 



2. — — above. f X 40 



3. — — 5, „ below. X (Oban, Raised-beacli.) 



4. — — „ „ front. ) 



5. Ci/pris q'lhba. Carapace, seen from riQ;lit side. ") /tt \ 



6. - - „ above. j ^ (Hornsea.) 



7. Pontoci/pris mytiJoides. Carapace, seen from left side, ) X 40 



8. — — „ above. ) (Oban, Raised-beach.) 



9. Faracypris ■poUta. Right valve, seen from outside. ) X 40 



10. — — ,, ,, above. ) (Oban, Raised-beach.) 



11. Cytheridea torosa. Carapace, seen from left side. ) , /T\/r j i \ 



12. - - - „ above. | X 40 (Mundesly, Crag.) 



13. Cy there mirabilis. Carapace of male, seen from above. 



14,15. — — Outlines of the young shell. i X 40 (Dryleys.) 



16. — — Carapace of male, seen from below. ) 



17. Cythere Loyani. Left valve of female, seen from outside. | a(\ (W \ 

 IS. — — „ „ below. 3 ^ ^^^^^-^ 



19. Cythere (jlobulif era. Carapace, seen from below. ") ^ o i ^-rk i n 



20. - - J „ above. j >< «^ ^^'^^'^'-^ 



21. Cytherura concentrica. Carapace, seen from below. X 84 



