PLATE III. 



FlQ. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 



12. 

 13. 



14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 



26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38 

 39 

 40 

 41 



Cythereis tuberosa, sp. nov., var. symmetrica, nov. (Page 26.) Right valve. 



— — — (Piige 26.) Carapace, showing right valve. "1 



— — — Carapace, ventral outline. J 

 Cytheropteron cuspidattim, sp. nov. (Page 37.) Left valve. i 



— — — Left valve, dorsal edge. I 



— — — var. tricuspidata, nov. (Page 38.) Right valve. [ 



— — — — — — Right valve, dorsal edge. J 



— pedatum (Marsson), var. salebrosa, nov. (Page 39.) Left valve. (See PI. IV, fig. 32.) 



— phyllopterum {^osqvitit). (Page 37.) Left valve. ] 



— — — Left valve, ventral view. J 



— umhonatum (Will.), var. longispinata (Marsson). (Page 41.) Right valve. (See PI. IV,i 



figs. 30, 31.) I 



— — — — — — Carapace, ventral outline. ( 



— — — — — — End outline of valve. J 



— cuspidatum, sp. nov., var. montuosa (Jones). (Page 38.) Right valve. "j 



— — — — — — Edge outline. K 



— — — — — — End outline. J 

 Cytherura appendiculata, Jones. (Page 30.) Carapace, showing right valve. "I 



— — — Carapace, edge view. J 

 CytJierella MantelUana, Jones. (Page 50.) Carapace, showing right valve. 1 



— • — — Carapace, edge view. ^ 



— — — Carapace, end view. J 

 Pontocypris triquetra (Jones). (Page 4.) Left valve (damaged). T 



— — — Edge view. L 



— — — End outline. J 



— trigoualis, sp. nov. (Page 3.) (See also PI. IV, figs. 1 and 2.) 



valve. 



Carapace, edge outline. 

 Left valve, inside. 

 Edge view. 

 End view. 

 Left valve. 



Carapace, showing right valve. 

 Carapace, edge view. 

 (Page 2.) Right valve. 



— — — Right valve. 

 Pontocypris triquetra (Jones), var. (? female). (Page 4.) Carapace, showing left valve. 



— — — — — Carapace, edge outline. 



Carapace, end outline. 



Carapace, showing right' 



Bytliocypris silicula (Jones). (Page 13.) 



— ? Jez-n/ca (Jones). (Page 14.) 

 Paracypris siligua, sp. nov. 



43. 

 44. 

 45. 

 46. 

 47. 

 48. 

 49. 

 50. 

 51. 

 52. 

 53. 

 54. 

 55. 

 56. 

 57. 

 58. 

 59. 

 60. 

 61. 

 62. 

 63. 

 64. 

 65. 

 66. 

 67. 

 68. 

 69. 

 70. 

 71. 

 72. 

 73. 



. Bytliocypris Brownei, sp. nov. (Page 13.) Left valve. 



— - — — Edge outline. 



— silicula (Jones), var. minor, nov. (or male ?) (Page 13.) 



— .Broiojiej, sp. nov. (? male). (Page 13.) 



Left valve. 

 Edge outline. 



Left valve. 

 Edge outline. 



Cytherella subreniformis, sp. nov. (Page 47.) Carapace, showing right valve. 

 — — — Carapace, edge outline. 



(Page 46.) 



obovata, sp. nov. (Page 46.) Carapace, showing right valve. 



Carapace, edge outline. 



ovata (Romer). (Page 44.) Left (small) valve. 



— — Right (large) valve. 



— — Right valve, inside. 



— — Carapace, dorsal aspect. 



— — Carapace, anterior aspect (oblique). 



— — Oval variety. Right valve. CSec also PI. IV, fig. 39, corrected.) 



— — Young. Ri2;ht valve. 



x20diam 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



xl8 „ 



xl8 „ 



xl8 „ 



x20 „ 



xl8 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



x20 „ 



}■ xl8 



— Williamsoniana, Jones. (Page 48.) Left (small) valve. 



• — — — Right (large) valve. 



— — — Right valve, inside. 



— — — Young. Right valve. 



— — — Carapace, dorsal view. 



— — — Carapace (younger), dorsal view. 



— — — Carajjace, ventral view. 



— — — Carapace, anterior aspect. 



— Muensteri (Romer). (Page 46.) Carapace, showing left valve. 



— — — Carapace (young), showing right valve. 



— — — Left valve, inside. 



— — — Carapace (east), dorsal view. 



— — — Carapace (cast), anterior aspect (oblique). 



— Williamsoniana, Jones, var. granulosa, Jones. (Page 49.) Right valve. 



— — — — — — Dorsal view. 



— Chapmani, sp. nov. (Page 49.) Right valve. 



— WilHamsoniana, Jones, var. stricta, nov. (Page 48.) Right valve. 



— — — var. granulosa, Jones. (Page 49.) Right valve. 



— obliquirugata, sp. nov. (Page 50.) Lett (?) valve. 



■1 



xl8 „ 



. xl8 



>• X 20 „ 



