BRITISH DIATOMACEJE. 27 



3. Stauroneis acuta, i. 59. t. 19. f. 187. B.M. 



a. Lough Moume, co. Antrim. 



b. Near Guildford, J. H. Capron, Esq., Nov. 5, 1852. 



c. Guildford, Nov. 1852. 



4. Stauroneis salina, i. 60. t. 19. f. 188. B.M. 



«. Shoreliam, Aug. 12, 1851. 



b. Slioreham, Siisse.x, Aug. 1851. 



c. Lancing, Sussex, My 1854. 



5. Stauroneis dilatata, i. 60. t. 19. f. 191. 



6. Stauroneis crucicula, i. 60. t. 19. f. 192. 



7. Stauroneis anceps, i. 60. t. 19. f. 190. B.M. 

 a. Lewes, Oct. 1852. 



8. Stauroneis linearis, i. 60. t. 19. f. 193. B.M. 

 a. (Shalford), J. R. Capron, Esq., Nov. 5, 1852. 



9. Stauroneis punctata, i. 61. t. 19. f. 189. B.M. 

 a. Dr. Dickie. 



10. Stauroneis pulchella, i. 61. t. 19. f. 194. B.M. 



a. Hove, Aug. 19, 1851. 



b. Hove, Sussex, Aug. 1850. 



c. Sussex, Aug. 1850. 



d. Seaford, Sussex, Oct. 1853. 



e. Netchaven, Sussex, Aug. 1854. 



11. Stauroneis rectangulabis, Greg. B.M. 

 a. Lewes, March 1853. 



22. PLEUROSIGMA, Smith, i. 61. 



I. Striee oblique. 



1. Pleurosigma formosum, i. 63. t. 20. f. 195; Front, i. 



f. cxcv. B.M. 



a. Hove, Aug, 19, 1850. 



b. With P. speciosum, Salt Pans, Hants, Sept. 1854. 



c. Shoreham, Sussex, Aug. 1850. 



d2 



