KNOWN SPECIES OF MARINE OSTRACODA. 



391 



b. Perfect carapace, ventral view, x 40. 

 C. do. dorsal view, x 40. 



d, do. end view, x 40. 



Fig. 6. Cytkere mamiUata. 



a. Left valve, outside, x 80. 



b. do. inside, x 80. 



c. do. ventral view, x 80. 

 Fig. 7- Cythere producta. 



a. Right valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 

 Fig. 8. Cythere venata. 



a. Right valve, outside, x 80. 



b. do. inside, x 80. 



c. do. dorsal aspect, x 80. 



Fig. 9. Cythere clathrata, var. nuda (young). 



a. Right valve, outside, x 40. 



b. do. inside, x40. 



c. do. dorsal outline, x 40. 



Fig. 10. Cythere clathrata, var. nuda (older). 



a. Right valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 



Fig. 



a. 



b. 



c. 



d. 

 Fig. 



a. 



b. 



c. 

 Fig. 



a. 



b. 



c. 

 Fig. 



a. 



b. 

 c. 



d. 

 e. 

 /• 

 9- 



11. Cythere clathrata. 

 Right valve, outside, x 40. 

 Perfect carapace, ventral view, x 40. 



do. dorsal view, x 40. 



do. end view, x 40. 



12. Cythere clathrata, var. lyrata. 

 Right valve, outside, x 40. 



do. inside, x 40. 



do. dorsal outline, x 40. 



13. Cythere clathrata, var. latimarginata. 

 Right valve, outside, x 40. 



do. inside, x 40. 



do. dorsal outline, x 40. 



14. Cythere mi'.tabilis. 



Perfect carapace, young (from Firth of Forth), 



X40. 

 Perfect carapace, dorsal view, x 40. 



do. lateral view, older (Firth of 



Forth), x40 

 Perfect carapace, dorsal view, x 40. 

 Right valve (Holy Island, 30-40 fath.), x 40. 

 Perfect carapace, adult (Dogger Bank), x 40. 

 do. dorsal view, x 40. 



PLATE LX. 



Fig. 1. Cythere plicatula. 



a. Right valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 

 Fig. 2. Cythere catenata. 



a. Left valve, outside, x 40. 



b. do. inside, x 40. 



c. do. dorsal outline, x 40. 



d. Surface ornament, x 80. 

 Fig. 3. Cythere lactea. 



a. Left valve, outside, x 40. 



b. do. ventral view, x 40. 



c. do. dorsal view, x 40. 

 Fig 4. Cythere septentrionalis. 



a. Perfect carapace, left side, x 40. 



b. do. dorsal view, x 40. 



c. do. ventral view, x 40. 



d. do. dorsal view (valves sepa- 

 rated), x40. 



e. 



/• 

 Fig. 

 a. 

 b. 

 c. 

 d. 

 e. 



/■ 

 Fig. 



a. 



b. 



c. 

 Fig. 



a. 



b. 



c. 



d. 



Left valve, inside, x 40. 

 Perfect carapace, end view, x 40. 

 5. Cythere costata. 

 Perfect carapace, right side, x 40. 



dorsal view, x 40. 



ventral view, x 40. 



end view, x 40. 



dorsal outline (valves sepa- 



do. 

 do. 

 do. 

 do. 

 rated), x 40. 

 Left valve, inside, x 40. 



6. Cythere lactea, var. rudis. 

 Left valve, outside, x 80. 



do. inside, x 80. 



do. dorsal view, x 80. 



7. Cythere pumila. 



Right valve, outside, x 40. 



Perfect carapace, dorsal aspect, x 40 



do. ventral view, x 40. 



do. end view, x 40. 



