BRITISH DIATOMACE^. 13 



24. SfRIRELLA ARCULA, n. S. B.M. 



a. Breydou, Dr. Aniott, July 1854.. 



14. TRYBLIONELLA, Smith, i. 35. 



1. Tryblionella Scutellum, i. 35. t. 10. f. 74. B.M. 



a. Poole Bav, 1848. 



b. Northfleet, Sept. 1852. 



c. Northjlcet, Mr. Capron. 



2. Tryblionella gracilis, i. 35. t. 10. f. 75 ; Frontis- 



piece, i. f. Ixxv. B.M. 



a. Lewes, Feb. 18, 1852. 



h. Letces, Dec. 1852. 



r. It ford, Sussex, Oct. 1852. 



d. Itford, Sussex, Dec. 1853. 



3. Tryblionella margixata, i. 35. t. 10. f. 7G. B.M. 

 a. Lewes '•'Brooks," Sept. 5, 1851. 



4. TR'i'BLIOXELLA PUNCTATA, i. 36. t. 10. f. 76, Supp. 



t. 30. f. 261. B.M. 



a. Seaford, July 21, 1850. 



.'■). Tryblionella accmixata, i. 36. t. 10. f. 77. B.M. 



a. Seaford, Dec. 3, 1852. 



b. Lewes, Dec. 1850. 



e. Citij Park, Cork, April 1855. 



6. TRYBLio>rELLA angustata, i. 36. Supp. t. 30. f. 262. B.M. 

 a. Guildford, Mr. Capron. 



7. Tryblionella levidensis, ii. 89. B.M. 



a. City Park, Cork, April 1855. 



b. City Park, Cork, April 1855. 



8. Tryblionella constricta, ii. 89. B.M. 



a. " T. Soleiformis." Stomacli of a Scallop, Kinsale Bay, 

 April 1855. 



