PLATE I. 



Fig. 



1. Cypris Browniana, p. 13. 



a. Left valve, outside 

 h. Right valve, inside 



c. Perfect carapace, dorsal aspect 



d. Perfect carapace, anterior aspect . 



e. Part of the surface of right valve, with the lucid spots 



2. Cijpris Browniana, var. tumida, p. 13. 



a. Perfect, left valve upwards 



b. Perfect, dorsal aspect . 



3. Cypris r/ibba, p. 15. 



a. Ri°;lit valve, outside T n , , . ,. . , , 

 , * , . ., \ Old individual. 



o. Right valve, inside J 



c. Perfect, dorsal aspect . 



d. Perfect, anterior aspect 



e. Right valve, outside. Young individual 

 /. Part of the surface of a valve 



. X 



25-1 



X 



25 



X 



25 



X 



25 



X 



150 j 



X 



25] 



X 



25 j 



Clacton. 



X 25 



\ Grays. 



x 25 | 

 X 25 J 



X 150 



Clactou. 



Cambridgeshire. 

 Grays. 



4. Cypris Ovum, p. 14. 



a. Right valve, outside .... 



b. Perfect, ventral aspect .... 



5 a. Candona Candida (variety with rosette-like lucid spots), p. 20. 

 Right valve, inside (broken) 



x 25 



x 25 



Cambridgeshire. 



X 25 Copford. 



5 b. Candona Candida (variety with lucid spots in a radiating form), p. 20. 



Part of inside of left valve, showing the lucid spots . . X 150 Copford. 



6. Cypris setigera, p. 12. 



a. Left valve, outside 



b. Left valve, inside 



c. Perfect, dorsal aspect . 



d. Perfect, posterior aspect 



7. Candona reptans, p. 16. 



a. Left valve, outside 



b. Right valve, inside 



c. Perfect, dorsal aspect . 



d. Perfect, anterior aspect 



e. Part of inside of right valve, showing the lucid spots 



X 



25 





X 

 X 



25 



25 



) Newbury. 



X 



25 





X 



12 



Clacton. 



X 



12 



Grays. 



x 12 -j 



> Recent : Annerley- 



x 30 Grays. 



