BMTISH DIATOMACE.E. 29 



11. Pleubosigma ANGrLATUM, i. 65. t. 20. f. 205. B.M. 



a. Lanciug, Aug. 27, 1852. 



b. Belfast, Aug. 1849. 



c. Pook Bay, Aug. 1849. 



d. Carrickfergus, Aug. 1849. 



e. Pevenseg, Sept. 1851. 



f. Itford, Sussex, April 1852. 



g. Lancing, Sixssex, Aug. 1852. 

 h. Seaford, Sussex, Dec. 1852. 

 i. Galway, July 185-3. 



j. Pevensey, Aug. 1853. 



k. Var. Hove, Sussex, Oct. 1853. 



i. Neichavcm, Sussex, Feb. 1854. 



m. Soutliease, Sussex, Aug. 1854. 



fi. rude. Shorehain, Sussex, April 1854. 



y. gracile. Granton, near Edinburgh, June 1854. 



12. Pleueosigma ^^stuarii, i. 65. Supp. t, 31. f. 275. B.M. 

 a. Hove, Sussex, Nov. 1852. 



13. Pleubosigma obscurum, i. 65. t. 20. f. 206. B.M. 



a. Lewes, Sept. 1850. 



b. Magalieii, Poole Bay, June 1849. 



c. Leives, 1850. 



^. d. Pook Bay, Nov. 1849. 



II. Striee transverse and longitudinal. 



14. Pleubosigma Balticum, i. 66. t. '22. f. 207 ; Front, i. 



f. ccvii. B.M. 



a. Lancing, Aug. 27, 1852. 

 h. Sussex, Oct. 1850. 

 y. c. Oct. 1851. 



15. Pleubosigma Steigilis, L 66. t. 22. f. 208. B.M. 



a. Hull, Mr. Harrison, Nov. 12, 1850. 



b. Itford, Sussex, Oct. 1852. 



16. Pleubosigma acuminatum, i. 66. t. 21. f. 209. B.M. 



a. Shoreham Harbour. 



b. Higham, Mr. Shadbolt. 



c. Shoreham, Su-tsex, June 1850. 



d. Shoreham, Sussex, Jutie 1850. 



