BRITISH DIATOMACE^. 13 



6. Epithemia ocellata, K'dtz. F. V. inflated, extremities of V. 

 rounded, foramina large, v.s. 



Kiitz. Bacill. xxix. 57. 



Fresh water. Wray near Lancaster, Mr. G. Smith. Cantyre Peat. 

 Plate I. 6. 



7. Epithemia longicornis, Ehr. F. V. inflated, extremities obtuse ; 

 dorsal ridge of V. somev\ hat angular ; foramina few, large ; striae 

 27 in -001". Length -0033" to '0058". v.v. 



Ehr. in Prit. Anim. xxiv. 6-9. 



Fresh water. Isle of Arran, mixed with Petalonema alatum. Berk, col- 

 lected by Professor Walker Arnott, Aug. 1852. 



Supp. Plate XXX. 247. 



8. Epithemia alpestris, W. Sm. F, V. linear ; V. recurved at the 



obtuse extremities ; foramina large ; striae 27 in '001". v.s. 



Kiitz. Bacill. v. 1(3? 



Fresh water. Katefield near Lancaster, Mr. G. Smith, April 1851. 

 Plate L 7. 



9. Epithemia proboscidea, KUtz. F. V. inflated ; V. recurved at 

 the extremities ; canaliculi large ; foramina inconspicuous ; strias 

 30 in -001". v.v. 



Kiitz. Bacill. v. 13. 



Fresh or brackish water. St. Ouen's Pond, Jersey, Aug. 1852, W. Sm. 

 Raasay Earth. 



Plate I. 8. 



10. Epithemia Sor eji. , Kiiiz. F.V. inflated; V. attenuate, slightly 

 recurved at the extremities, dorsal line highly arcuate ; canaliculi 

 few, minute; striae 33 in -001". Length -0009" to -0013". v.v. 



Kiitz. Bacill, v, 12. 



Fresh or brackish water. Lewes, May 1850, W. Sm. Lough Mourne 

 Deposit, Cantyre Peat, &c. (New Zealand.) 



Plate L 9. Frustule with endochrome, Frontispiece, vol. i. fig. IX. 



