PLATE III. 



Tig. 



1. Cythere lutea. Carapace of female, seen from left side. 



2. — — above. 



3. — ■ — „ „ below. 



4. — — „ ' „ front. J> (Loch Gilp.) 



5. — — Carapace of male, right side. 



6. — — ,, separated valves show- 



ing hinge-margins. 



7. Cythere villosa. Carapace of female, seen from left side. 

 ■8. — — „ male, 

 9. — ■ — „ „ above. 



10. — — „ „ „ below. [ (Jordan Hill.) 



11. — — „ „ front. 

 W a. — — Separated valves. 



12. — — ,, female (variety). 



13. — — Carapace of male, radiate variety. (Greenock.) 



14. Cythere convexa. Carapace of female, seen from left side. 



16. - - bdow." [ (Oban, raised-beach.) 



11. — — „ „ front. J 



18. Cvthere Jefreysii. Left valve, seen from outside. ^ ,r\y • i , , 



19. _ - „ „ above. j (Oban, raised-beach.) 



20. Cythere pellucida. Carapace of female, seen from left side. 



21. — — „ „ above. 



22. — — „ below. ^ (Loch Gilp.) 



23. — — „ „ front. 



24. — — Right valve, „ above. 



25. Cythere castanea. Right valve of female. (Paisley, brick-field.) 



26. Cythere viridis. Carapace of female, seen from left side. 



27. — — „ „ above. I (Paisley.) 



28. — — ,, „ front. ) 



29. Cythere pulchella. Carapace of female, seen from left side. 



30. — — ,, above. , /t^i n-i \ 



31. - - „ „ below. C" (Loch Gilp.) 



32. — — „ ,, front. 



33. — — Carapace of male, „ left side. 



34. — — ,, separated valves, 



seen from above. , (^ a rr-n 



35. — — Hinge-processes of right valve X 84. ( (Jordan Hill.) 



36. — — Lucid spots X 84. 



37. — — Outhne of young carapace. / 



(All X 40 except where otherwise stated.) 



