36 BRITISH DlATOMACTE.E. 



12. GOMPHONEMA ? MARINUM, i. 81. t. 29. f. 246. B.M, 



a. Cuckmere, Sussex, March 15, 1852. 



b. Sussex, Oct. 1851. 



13. GoMPHONEMA Naviculoides, ii. 98. B.M. 



a. Botanic Garden, Edinbm-g'li. 



b. Botanic Garden, Edinburgli, Aug. 1853. 



14 GOMPHONEMA VENTRICOSVM, ii. 90. B.M. 



«. River Spey, July 1854, Br. Grei/ary. 



15. GoMPHONEMA ELONGATUM, ii. 99. B.M. 



a. Wisbeach, April 1854. 



16. GOMPHONEMA ROSTBATUMj ii. 99. B.M. 



a. Barley Lake, co. Cork. 



17. GoMPHONEMA SARCOPHAGUS, ii. 99, 



18. GOMPHONEMA INSIGNE, ii. 100. 



19. GoMPHONEMA FiBULA, ii. 100. B.M. 

 a. Rackham, Sussex, Aug. 1853. 



20. GoMPHONEMA SUBTILE, ii. 100. 



21. GojrPHONEMA Clavus ?, Greg. B.M. 

 a. Lough Avaid, co. Cork. 



22. GoMPHONEMA DICHOTOMUM y. B.M. 



a. Duddingston Lough. 



20'. PODOCYSTIS, Smith, ii. 101. 

 1. PoDocYSTis Americana, ii. 101. 



27. PODOSPHENIA, Smith, i. 82. 



1. Podosphenia Ehrenbergii, i. 82. t. 24. f. 225. B.M. 



a. Torbay, Mrs. Griffiths, 1849. 

 h, Torbay, Mrs. Griffiths. 



