■i4 BRITISH DIATOMACE^. 



41. TETllACYCLUS, Smith, ii. 37. 



1. Teteacyclus lacustris, ii. 38. t. 39. f. 308. B.M. 



a. Tonnabrick Mountain, co. Galway, Jxily 8, 1853. 



b. Dolgelly. 



c. Tonnabrick, co. Galicay, July 1853. 



d. Dohjclhj, Mr. Ralfs. 



2. TETRACYCLrS EMARGITs ATUS, ii. 38. B.M. 



a. Gap of Dunloe, Killarney, July 1855. 



b. Gap of Uunloe, July 1855. 



Subtribe 4. DIATOME^. 

 42. DIATOMA, Smith, ii. 38. 



1. DiATOMA vuiGAEE, ii. 39. t. 40. f. 309. B.M. 



a. Wareham, May 1849. 



b. Var. 0. Plunipton, Sussex. 



c. Wareham, May 1849. 



d. Ardrossan, Dr. Landsborough, April 1853. 

 €. Cheshunt, Dr. Hassall. 



f. Levees, Apnl 1852. 

 y. Cork, April 1855. 

 /(. /3. Plumpton, Sussex, April 1852. 

 i. iS. Pentlund Hills, Dr. Greville, April 1821. 

 J. /3. (D. tenue. Ay.) 

 Ong. spec. Ayardh, Herb. Greville. 



2. DiATOMA GR.4NDE, ii. 39. t. 40. f. 310. B.M. 



a. Shannon near Atblone, July 2, 1853. 



b. Nuns Island, Galway, July 4, 1853. 



c. Corribe River, co. Galicay, July 1853. 



d. Allanwuter, Dr. Greville, June 1855. 



e. Shannon, July 1853. 



.'5. DiATOMA ELOXGATFM, ii. 40. t. 40. f. 311, t. 41. f. 311. 



Supp. t. 60. f. 311. B.M. 



a. Tarring Neville, Sussex. Nov. 1853. 



b. Hastings, May 14, 1851. 



c. Hornby, Lancashire (May 1851). 



d. Var. h ^'" y- Tarring Neville, Sussex, Nov. 1853. 

 ('. Var. b. Hornby, Lancashire, May 1854. 



f. Denton, Sussex, Nov. 1853. 



