236 CEYLON PEARL OYSTER REPORT. 



Pontella fera, 21, 26, 74. 



securifer, 22, 46, 59, 60, 62, 63, 66, 72, 77, 105. 

 ,, princej:>s, 77. 

 ,, tenuiremis, 49. 

 Pontellina plumata, 7, 9, 14, 15, 21, 22, 23, 26, 27, 28, 29, 30, 33, 52, 72, 76, 97. 

 Pontellopsis krameri, 8, 10, 33, 34. 



armata, 23, 75, 76, 77, 80, 94, 96, 98, 100, 103. 

 regalis, 39. 

 ,, herdmani, n. sp., 54, 57. 



,, strenua, 47, 52. 



,, perspicax, 47. 



Acartia clausi, 1, 2, 4, 5, 59. 



longiremis, 1, 2, 3, 4, 6, 36, 37, 38, 39. 

 ,, dubia, 5, 7. 



erythnea, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 31, 

 35, 36, 43, 46, 47, 48, 49, 50, 53, 54, 55, 57, 58, 59, 60, 61, 

 62, 63, 66, 67, 68, 70, 71, 77, 78, 79, 80, 92, 94, 96, 97, 98, 

 100, 101, 103. 

 centrum, 5. 8, 49, 50, 53, 55, 58, 93. 

 negligens, 7, 8, 10, 11, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27. 28, 

 29, 30, 31, 33, 34, 35, 38, 50, 52, 56, 64, 6G, 71, 75, 76, 78, 

 79, 81, 94, 100. 

 Tortanus gracilis, 6. 



,, forcipatus, 45, 47, 56. 

 Thorellia brunnea, 112. 



Oithona plumifera, 1, 2, 6, 7, 8, 11, 13, 14, 15, 17, 18, 19, 20, 21, 22, 24, 26, 27, 



28, 29, 30, 31, 32, 33, 37, 38, 39, 42, 55, 56, 60, 65, 67, 

 68, 71, 72, 78, 81, 107, 118. 

 similis, 5, 6, 7, 10, 14, 15, 17, 19, 20, 21, 22, 23, 24, 35, 36, 38, 42, 43, 

 47. 52, 56, 57, 58, 59, 64, 65, 66, G7, 68, 69, 70, 71, 78, 80, 

 81, 92, 113, 114. 

 minuta, 13, 14, 18, 19, 20, 22, 25, 26, 27, 28, 29, 31, 45, 46, 47, 50, 51, 

 52, 53, 54, 56, 59, 61, 63, 64, 65, 66, G7, 69, 71, 78, 79, 80, 

 81, 114. 

 rigida, 25, 26, 32, 42, 43, 52, 54, 58, 59, 62, 64, 69, 71, 72, 78, 79, 96, 



107, 116, 118, 121. 

 spmifrons, 1, 2, 3, 4, 8, 9, 10, 11, 13, 24. 

 ,, nana, 47, 114, 115. 



setigera, 36, 37, 38, 39, 41. 



' & ^ ' . > from Ascidians, Ceylon. 

 normani, J 



