208 NEW OR IMPERFECTLY-KNOWN OSTRACODA. 



PLATE XXIV. 



Conchcecissa cucullala (p. 191). 



Fig. 1. Sliell (with open valves) seen from outside, x lO. 



2. Shell seen from left side, x 40. 



3. Aiitcuiiule (with front.il tentacle) of female, X 84'. 



4. Inner branch of antenna of male, x 84. 

 o. „ ,, female, x 84. 



6. Chewing-plates of mandible, X 240. 



7. Postabdominal lamina, x 84. 



8. Gullet and stomach, x 84. 



Eucoiichacia cMerchiee (p. 190). 



Fig. 9. Outline of shell, S , seen from left side, x 55. 



10. Antennule of male, x 120. 



11. „ female, x 120. 



12. Antenna of female, x 110. 



13. Inner branch of antenna of male, x 110. 



14. Mandible and palp of female, x 120. 



15. Copulatory organ and caudal laminae of male, x 110. 



Cyclasterope brevis, ? (p. 183). 



Fig. 16. Outline of shell seen frOm right side, x 16. 



17. Last three joints of antennule (setae omitted), x 55. 



18. Joints and first seta of antenna, x 84. 



19. Portion of one of the antennal setae, x 240. 



20. Inner brancli of antenna, x 84. 



21. Maxilla of first pair, x 40. 



22. Postabdominal laminae, x 40. 



Philomedes sordida, S (p- 186) . 



Fig. 23. Outline of shell seen from left side, x 40. 



24. Inner branch of antenna, x 100. 



25. End of vermiform limb, with setae, x 240. 



26. One of the caudal laminae, x 100. 



