PLATE XII. 



Fig. 



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



2. — — „ „ above. 



3. — — „ „ below. 



4. Cythere Jonesii. Left valve, seen from outside, 



5. — — „ ,, above. 



6. — — ,, „ below. 



7. — — \d,r. ceratoptera. Left valve, seen from 



outside. 



8. Cythere antiquata. Left valve, seen from outside. ^ 



9. — — ,, ,, above. >• 



10. — — „ „ below. ) 



11. Cythere globulif era. Carapace, seen from left side. ) 



12. — — J, » above. ) 



1 3 . Cytherura nigrescens. Carapace of female, seen from left side. 



14. Cytherura angulata. Carapace, seen from left side. 



15. Cytherura cuneata. Carapace of male, seen from left) 



side. ) 



16. Cytherura (similis?). Carapace, seen from left side. 



17. Cytherura undata. Carapace of male, seen from left side. 



18. Bosquetia robusta. Carapace, seen from left side. ^ 



19. — — ,, „ above. ' 



20. — — „ „ below. 



21. — — ,, „ front. 



22. Polycope orbicularis. Left valve, seen from outside. 



23. — — ,, „ above. 



3 



X 40 



(Belfast New Dock. 



X 40 



(Belfast New Dock.) 



X 40 



(Belfast New Dock.) 



X 60 (Barrie.) 



X 84 (Irvine.) 

 X 84 (Oban.) 



X 84 (Loch Gilp.) 



X 84 (Loch Gilp.) 

 X 84 (Paisley.) 



X 40 (Paisley.) 

 X 60 (Dalmuir.) 



