32 BBITISH DIATOMACE^, 



11. Synedea obtusa, i. 71. t. 11. f. 92. B.M. 



a. Lewes, Feb. 1852. 



b. Leices, Feb. 1852. 



12. Synedba capitata, i. 72. t. 12. f. 93. B.M. 



a. Brooks near Lewes, March 15, 185-3. 



b. Lakes near Wareham, Sept. 4, 1847. 



c. Wareham, Sept. 1843. 



13. Synedea delicatissima, i. 72. t. 12. f. 94. B.M. 

 a. Br. Dickie, Dec. 1851. 



14. Synedea longissima, i. 72. t. 12. f. 95. B.M. 



a. Ponds, Botanic Garden, Belfast, Dr. Dickie, 1851. 



b. Belfast, Dr. Dickie. 



lo. Synedea tabulata, i. '72. t. 12. f. 96. B.M. 



a. Brooks, Lewes, Sept. 1, 1851. 



b. Leices, Sept. 1851. 



16. Sy-nedea affinis, i. 73. t. 12. f. 97. B.M. 



a. Pevensey, Mr. Dam/erfield, April 1851. 



b. Pevensey, Sussex, April 1851. 



27. Synedea Aecus, i. 73. t. 11. f. 98, t. 12. f. 9a B.M. 



a. Cuekmere, Sussex. 



h. Cuekmere, Sussex, March 1851. 



18. Synedea hamata, i, 7-3. Supp. t. 30. f. 264. B.M. 



a. Plumpton, April 28, 1852. 



b. Plumpton, Sussex, April 1852. 



19. Synedea Vauchebl.1;, i. 73. t. 11. f. 99. B.M. 



a. Lewes, Oct. 1850. 



b. Lewes, Oct. 1851. 



20. Sy^-edea fasciculata, i. 73. t. 11. f. 100. B.M. 



a. Plumpton, Sussex, 1852. 



b. Sussex, April 1852. 



§ IV. 



21. Synedea ceystallina, i. 74. t. 12. f. 101. B.M. 

 a. Poole Bay, Sept. 24, 1851. 



