48 BRITISH DIATOMACE.E. 



4. Melosira varians, ii. 57. t. 51. f. 332. B.M. 



a. Winterbourne, Lewes, ^farch 1852. 



b. Itford, Sussex, Sept. 1853. 



c. Lnndport, Sussex, Dec. 1853. 



d. Aberdeen, Dr. Dickie. 



e. Winterbourne, Lewes, April 1852. 



5. Melosira xivalis, ii. 58. t. 53. f. 336. B.M. 

 a. Pass of Killiecrankie, Aug. 1854, Dr. GreviUe. 



6. Melosira distans, ii. 58. t. 61. f. 385. B.M. 

 a. Braemar (Aug. 1854, Dr. Balfour). 



7. Melosira Westh, ii, 59. t. 52. f. .3.33. B.M. 

 a. (Stomach of Pectens), coast of Sussex. 



50. ORTHOSIRA, Smith, ii. 59. 



1. Orthosira arexaria, ii. 59. t. 52. f. 3.34. B.M. 



a. Belfast, Dr. Dickie, Dec. 1851. 



b. Lough Moume, S.W. shore, co. Antrim. 



c. Wareham, June 1848. 



2. Orthosira marina, ii. 59. t. 53. f. 338. B.M. 

 a. Coast of Sussex. 



3. Orthosira Dickieii, ii. 60. t. 52. f. 335. B.M. 



a. Aberdeen, Dr. Balfour. 



b. (Aberdeen, in caves). Dr. Redfem, Nov. 12, 1853. 



c. Aberdeen, Dr. Dickie, Dec. 1847. 



d. Aberdeen, Dr. Redfern. 



4. Orthosira orichalcea, ii. 61. t. 53. f. 337. B.M. 



a. Aberdeenshire, Dr. Dickie. 



b. Cheshunt, Mr. Hassall. 



c. Aberdeen, Dr. Dickie. 



d. St. Kicrans Wells, Clonmacndse, July 1855. 



5. Orthosira spinosa, ii. 61. Supp. t. 61. f. 386. B.M. 



a. Braemar (Aug. 1854), Dr. Balfour. 



b. Cave at Royat, Auvergne, June 1854. 



