PLATE V (continued). 



Fig- 



1 1. Cy there coslellata, p. 32. 

 Left valve, outside 



X 20 



Bracklesham Bay. 



15. Cythereis cornuta, p. 39. 



a. Right valve, outside 



b. Right valve, dorsal aspect . 



16. Cy there scabropapidosa , p. 31. 



Right valve, outside . 



18, 19, 21, 23. Cytherella compressa, p. 54. 



18. Left valve, outside. (Var. 1, p. 55.) . 



19. Left valve, outside. (Var. 2, p. 55.) . 

 21. Right valve, outside. (Large individual.) 

 23. Right valve, outside 



X 25-) 



n _ ( Bracklesham Bav. 



X 2o J J 



X 25 Bracklesham Bay. 



x 25 



; 25 \ Copenhagen Fields, 



X 25 f London. 



X 25 



20, 22. Cytherella Londinensis, p. 55. 



20. Left valve, outside .... x 25 1 Copenhagen Fields, 



22. Right valve, outside . . . . X 25 J London. 



[The central depression is not sufficiently well marked in either of 

 these figures.] 



24. Cytheridea perforata, var. glabra, p. 46. 



a. Right valve, outside 



b. Right valve, dorsal view 



x 25 1 Copenhagen Fields, 

 x 25 J London. 



