KNOWN SPECIES OF MARINE OSTRACODA. 



389 



DESCRIPTION OF THE PLATES. 



PLATE LVII. 



Fig. 1. Cytherella pidchra. 



a. Right valve (exterior), x 50. 

 I/. do. (interior), x 50. 



c. do. dorsal aspect, x 50. 



d. Lucid spots, X 120. 

 Fig. 2. Cytherella punctata. 



a. Right valve, outside, x 50. 



b, do. dorsal aspect, x 50. 

 Fig. 3. Cytherella beyrichi. 



a. Left valve, outside, x 50. 



b. do. dorsal aspect^ x 50. 

 Fig. 4. Cytherella rugosa. 



a. Right valve, outside, x 50. 



b. Left valve, dorsal aspect, x 50. 

 Fig. 5. Bairdia bosquetiana. 



a. Perfect carapace, right side, x 40. 

 S. do. ventral aspect, x 40. 



c. do. dorsal aspect, x 40. 



d. End view, x 40. 



e. Lucid spots, x 80. 



Fig. 6. Bairdia amygdaloides. 



a. Right valve, outside, x 40. 



b. Left valve, outside, x 40. 



c. do. inside, x 40. 

 Fig. 7- Bairdia ovata. 



a Left valve, outside, x 40. 



b. do. dorsal aspect, x 40. 



c. do. inside, x 40. 

 Fig. 8. Bairdia subdeltoidea. 



a. Right valve (old), outside, x 40. 



b. Left valve, outside, x 40. 



c. Perfect carapace, dorsal aspect, x 40. 



d. do. ventral aspect, x 40. 



e. Left valve, inside, x 40. 

 y. Right valve, inside, x 40. 



ff. End view of carapace, x 40. 

 h. Lucid spots, x 75> 

 Fig. 9. Bairdia fusca. 



a. Perfect carapace, right side, x 40. 



b. do. dorsal aspect, x 40. 



c. do. ventral aspect, x 40. 



d. do. end view, x 40. 

 Fig. 10. Bairdia crosskeiana. 



a. Perfect carapace, left side, x 40. 



b. do. dorsal outline, x 40. 



c. do. ventral outline, x 40. 



d. do. end view, 40 x . 

 Fig. 1 1 . Jonesia simplex. 



a. Left valve, outside, x 40. 



b. Perfect carapace, dorsal view, x 40. 



c. Right valve, inside, x 40. 



d. End view, x 40. 



e. Lucid spots, x 220. 

 Fig. 12. Cytherideis maculata. 



a. Left valve, outside, x 40. 



b. do. inside, x 40. 

 Fig. 13. Cytherideis decora. 



a. Right valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 



PLATE LVIII. 



Fig. 1 . Cytherideis gracilis. 



a. Perfect carapace, right side, x 40. 



b. do. dorsal view, x 40. 

 C. Right valve, ventral aspect, x 40. 

 d. End view, x 40. 



Fig. 2. Cytherideis oryza. 



a. Perfect carapace, right side, x 40. 



b, do. dorsal view, X 40. 



Fig. 3. Cytherideis pulchra. 



a. Left valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 

 Fig. 4. Cytherideis lata. 



a. Right valve, outside, x 40. 



b. do. dorsal outline, x 40. 



