BBITISH DIATOMACE^. 19 



S. Navicula CRASSENER•v^A, i. 47. Supp. t. 31. f. 271. B.M. 



a. Co. Cork 



b. Wareham, Sept. 1849. 



4. NA\^cuLA SERiANS, i. 47. t. 16. f. 130. B.M. 



a. Wareham, Dec. 1849. 



b. Sussex, Aug. 1853. 



5. Navicitla cuspidata, i. 47. t. 16. f. 131. B.M. 



a. Lewes. 



b. Lewes, Sept. 1850. 



6. Navicula rhynchocephala, i. 47. t. 16. f. 132. B.M, 

 a. Dr. Dickie, Dec. 1851. 



§ II. 



7. Navicula Liber, i. 48. t. 16. f. 133. B.M. 



a. Pevensev, Sept. 10, 1851. 



b. Cumbrae, Feb. 1854. 



8. Navicula firma, i. 48. t. 16. f. 134, ii. 90. B.M. 



n. Brooks near I^ewes, Oct. 23, 1852. 

 Var. /3. b. Lough Mourne Deposit. 



9. Navicula elliptica, i. 48. t. 17. f. 152; Front, i. 



f. clii;ii. 92. B.M. 



a. Wareham, Jmie 5, 1849. 

 6. Dorset, Sept. 1850. 



10. Navicula ovalis, i. 48. t. 17. f. 153. B.M. 



a. Laraes. 



b. J. R. Capron, Nov. 5, 1852. 



11. Navicula shnutula, i. 48. Supp. 31. f. 274. B.M. 



a. Itford, Oct. 23, 1852. 



b. Leices, Oct. 1852. 



§ III. 



12. Navicula Jennerii, i. 49. t. 16. f. 134. IJ.M. 



a. Shoreham, June 7, 1850. 



b. Sussex, Feb. 1852. 



