1910.] BRITISH SPECIES OF OSTRACODA. 217 



EXPLANATION OF THE PLATES. 



Plate XIX. 



Candona Candida. 



Figs. 1, 2. Shell of female, seen laterally and dorsally, X 40. 



3, 4. ,, „ juni'., seen laterally and dorsally, X 55. 



5. Posterior antenna, X 140. 



6. Mandible, X 125. 



7, 8. Second maxilla of male, left and right side, X 140. 



9. Foot of second pair, X 125. 



10. Caudal ramus of male, X 140. 



11. Copulatory organ of male, X 110. 



Candona caudata. 



Figs. 12, 13. Shell of female, seen laterally and dorsally, X 40. 



14. Posterior ventral angle of shell, X 84. 



15. Posterior antenna, X 120. 



Plate XX. 

 Candona angulata. 



Figs. 1, 2. Shell of male, seen laterally and dorsally, X 40. 

 3. ,, female, seen laterally, X 40. 



4, 5. Second maxilla of male, right and left, X 125. 



6. End of foot of second pair, X 125. 



7. Caudal ramus, X 84. 



8. Copulative organ of male, X 84. 



9. Parasite, X 84. 



10. Parasitic cysts on shell, X 10. 



Candona caudata. 



Fig. 11. Anterior antenna, X 120. 



12. End of foot of second pair, X 125. 



13. Caudal ramus with genital lobe of female, X 120. 



Plate XXI. 



Candona neglecta. 



Figs. 1,2. Shell of male, seen laterally and dorsally, X 30. 

 3, 4. „ female „ „ „ X 30. 



5, 6. Second maxilla of male, left and right, X 140. 



7. Caudal ramus, X 100. 



8. Copulative organ of male, X 100. 



Candona siliquosa. 



Figs. 9, 10. Shell of female, seen laterally and dorsally, X 40. 



11. Anterior antenna, X 125. 



12. End of foot of second pair, X 125. 



13. Caudal ramus and genital lobe of female, X 125. 



14. Muscle-spots, X 125. 



Plate XXII. 

 Candona elongata. 



Figs. 1, 2. Shell of female, seen laterally and dorsally, X 40. 



3. Anterior antenna, X 240. 



4. Posterior antenna, X 180. 



5. Mandible, X 240. 



6. Foot of first pair, X 180. 



7. „ second pair, X 240. 



8. Caudal ramus, X 240. 



