PLATE V. 



Fig. 



1. Bairdia contractu, p. 53. 



a. Right valve, inside 



h. Perfect, dorsal aspect 



c. Perfect, right valve upwards 



2, 3. Cytherideis Bartonensis, p. 50. 



2 a. Right valve, outside 



2 h. Right valve, dorsal aspect . 



3 a. Right valve, outside 



3 b. Perfect, dorsal aspect 



X 



25 



' Barton Cliff 



X 



25 , 





X 



25" 





X 



25 



' Barton Cliff. 



4, 5. Cytheridea Mulleri, var. inteniedia, p. 42. 

 a. Perfect, right valve upwards 

 h. Perfect, dorsal aspect 

 c. Perfect, posterior aspect 



5. Right valve, outside : young (crushed) 



6, 7, 10. Cythere striatopunctata, p. 27. 



6. Right valve, outside : young 

 7 a. Perfect, left valve upwards . 

 7 h. Perfect, dorsal view 

 7 c. Perfect, anterior view 



10. Right valve, outside 



X 



25 \ 





X 

 X 



25 

 25 



^ Barton Cliff. 



X 



25 , 





X 



25 





X 

 X 



25 

 25 



Barton Cliff. 



X 



25 





25 Alum Bay (Bed No. 29). 



8. Cythere plicata, var. Latieosta, p. 33. 



a. Left valve, outside 



b. Right valve, inside 



c. Perfect, dorsal aspect 



d. Perfect, anterior aspect 



X 25 



X 25 



X 25 



X 25 



Barton Cliff. 



9, 17. Cythereis Jiorrescens, p. 38. 



9. Left valve, outside . . . . x 25 



[The ornament on the surface should have been figured as blunt 

 spines, not tubercles.] 

 17 a. Left valve, outside : broken . . . x 25 



17 b. Left valve, dorsal aspect 



X 25 



Barton Cliff. 



Braoklesham Bay. 



II. Cythere attenuata, p. 28. 



Left valve, outside : broken at the antero-dorsal hinge . x 25 Alum Bay (Bed No. 29). 



[The subcentral impression towards the dorsal border is not shown in 

 this figure.] 



12, 13. Cytherella Munsteri, p. 56. 

 12 a. Left valve, outside 

 12 6. Left valve, dorsal aspect 



[The posterior extremity is too acute in this figure.] 

 13. Left valve, outside 



X 2o 

 X 25 



X 25 



Bracklesham Bav. 



