384 CEYLON PEARL OYSTER REPORT. 



Fig. 7. Cytherura concinna, n. sp., from above. 



8. right side. x72. 



9. Cythere knoxi, n. sp., from right side. 



10. above, x 72. 



11. Cytlwre chalmersi, n. sp., from right side. 



12. .above, x 61. 



13. Cytliere imthurni, n. sp., from right side. 



14. above, x 76. 



,, 15. Cythere thompsoni, n. sp., from right side. 



16. above, x 60. 



17. Cythere donnani, n. sp., from right side. 



18. above. x37'5. 



19. Cythere tvilleyi, n. sp., from right side. 



20. above, x 46. 



21. Cythere hornelli, n. sp., from right side. 



22. above, x 72. 



23. Cythere halyi, n. sp., from right side. 



24. above, x 60. 



25. Cythere kelaarti, n. sp., from right side. 



26. above, x 60. 



27. Cythere wllisi, n. sp., from right side. 



28. above, x 47. 



29. Cythere wlletti, n. sp., from right side. 



30. above, x 72. 



,, 31. Cythere holdsworthi, n. sp., from right side. 



32. above, x 70. 



,, 33. Cytlwrella ondaatjei, n. sp., from right side. 



34. above, x 60. 



35. Cytherella waspillaii, ri. sp., from right side. 



36. above, x 60. 



,, 37. Sarsidla gradlis, postabdoraen. x 70. 



38. Sarsiella similis, x 120. 



,, 39. Saraiell-a crispata, x 70. 



40. Sarsiella carinata, x 70. 



41. ,, antennule. x 70. 



42. Sarsiella tumida, postabdomen. x 70. 



43. Codonocera crucnla, postabdomen. x 70. 



,, 44. modified seta of antennule. x 110. 



45. ,, prehensile branch of antenna, x 70. 



46. Xestolebris iirasa, antennule. x 260. 



47. antenna, x 156. 



48. Xestolebris sqiiamiyera, antennule. x 260. 

 49. antenna, x 156. 



HARRISON AND SONS, PRINTERS IN ORDINARY TO HIS MAJESTY, ST. MARTIN'S LANE, LONDON. 



