316 DR. G. S, BEADY ON ENTOMOSTBAOA 



first pair. 13. Foot of fourth pair. 14. Foot of fifth pair. 15. Pos- 

 terior abdominal and caudal segments. All the figures greatly 

 enlarged. 



Figs. 16-20. Macrothrix triserialis, n. sp. 16. Animal seen from behind. 

 17. Side view of animal, both much magnified. 18. Anterior portion 

 of head and anterior antenna, further enlarged. 19 & 20. Serratures 

 of the ventral margins of the carapace, greatly magnified. 



Figs. 21-26. I)ia2}tonitis orientalis, n. sp. 21. Female, seen from behind, mag- 

 nified. 22. Anterior antenna of female. 23. Right anterior antenna of 

 male. 24. Eight foot of male. 25. Fifth foot of female. 26. Ab- 

 domen and caudal extremity of male. All very considerably mag- 

 nified. 



Plate XXXVIII. 

 Fig. 1. Alona acanthocercoides, Fischer. Animal, seen laterally, magnified. 

 Figs. 2-4. CyolofS, sp. ? 2. Anterior antenna of female. 3. Fifth foot. 



4. Tail with set^. All magnified. 

 Figs. 5-7. Cypris Malcolmsoni, n. sp. 5. Postabdominal ramus. 6. Shell, 



from left side ; 7, from above. 

 Figs. 8-11. Cypris luxata, n. sp. Shell, in different views: 8, Left side, 



9, right side, 10, from above, 11, front view. 

 Figs. 12-14. Cypris purpurascens, n. sp. Shell : 12, left side, 13, from above, 



14, front view. 



Figs. 15-17. Cypris Halyi, n. sp. 15. Left side, 16, from above, 17, front view. 

 Figs. 18-20. Cypris tenuicauda, n. sp. Shell : 18, left side, 19, from above, 



20, front view. 

 Figs. 21-23 a. Cypris fiirfiiraoea, n. sp. Shell: 21, left side, 22, from above, 



23, front view. 23 a. A small portion of the shell-surface, much 



more highly magnified. 

 Figs. 24-27 a. Chlamydotheca siihglobosa, Sowerby. Shell. 24. Eight valve, 



seen from inside. 25. Left valve, inside view. 26. Both valves, 



from above. 27. Both valves, front view. 

 Figs. 28-30. Cyprinotus cingalensis, n. sp. Shell : 28, left side, 29, from above, 



30, front view. 



Plate XXXIX. 



Figs. 1-3. Cypridopsis globosa, n. sp. Shell : 1, left side, 2, from above, 3, front 



view. 

 Figs. 4-6. Pontocypris nitida, n. sp. Shell : 4, right side, 6, from above, 



6, front view. 

 Figs. 7-9. Cypridopsis marmorata. Shell : 7, left side, 8, from above, 9, front 



view. 

 Figs. 10-12. Cypris monilifera, n. sp. Shell: 10, right side, 11, from above, 



12, front view. 

 Figs. 13-15. Bairdia tenera, n. sp. Shell : 13, left side, 14, from above, 



15, front view. 



Figs. 16-18. Cythere Buperti, n. sp. Shell : 16, left side, 17, from above, 



18, front view. 

 Figs. 19-22. Cythere coraUoides, n. sp. Shell of male : 19, left side, 20, from 



above. Shell of female : 21, left side, 22, from above. 

 Figs. 23, 24. Cythere Stimpsoni, Brady. Shell : 23, left side, 24, from above. 

 Figs. 25-28. Cythere truncatula, n. sp. Shell of male : 25, left side, 26, from 



above. Shell of female : 27, left side, 28, from above. 



