263 



thålern El Kah tab. XII, fig. 22) which the author ])laces under the iVo- 

 viciila cnsi)idala group. 



Herc aiici Ihcre. More conspicuous in a galhering labelled: »Gover- 

 ing bare spols on peaty ground . South side ol'Trangisvaagfjord (Sydero)^. 



AMPHIPLEURA Kiitz. 1844. CI. Syn. I, p. 125. 



24. Amphipleura pellucida Kiitz., V. H. Syn. tab. XVII, figs. 14—15. 

 Only one example occurred in Plankton from the lake in Kvalbo- 



Ejde (Sy de ro). 



NAVICULÆ MESOLEJÆ Cl. Syn. I, p. 127. 



25. Navicula Rotæana Rbh., Lgst. Spetsb. tab. I, fig. 13, V. H. 

 Syn. tab. XIV, ligs. 17—19. 



Found dispersed in several of the gatherings. Plankton. 



Var. oblongella Grun., V. H. 1. c, lig. 21. 



Found intermingled with the main species in gatherings from Tran- 

 gisvaag (Sydero). 



26. N. bacilliformis Grun., V. H. Syn. tab. XIII, fig. 11. 

 Kirkebokamp (Str6m5). 



27. N. Pupula Kiitz., V. H. Syn. tab. XIII. fig. 15. 

 Sand (San do); Trangisvaag (Sydero). 



NAVICULÆ ENTOLEJÆ Cl. Syn. I, p. 131. 



28. Navicula contenta Grun. var. biceps Arnott, V. H. Syn. tab. 

 XIV, fig. 31 b. 



Here and there. Not rare in a gathering from Hojefjæld on Bordo. 



29. N. perpusilla Grun., V. H. Syn. tab. XIV, figs. 22— 23. 

 Trangisvaag, Vaag (Vaago); Hojefjæld (Bord ol In the latter ga- 

 thering, not rare. 



NAVICULÆ DECIPIENTES Grun. 1880. Cl. Syn. I, p. 138. 



30. Navicula Semen Ebr., Grun. Fz. Jos. L. tab. I, fig. 34. 

 Rather rare. Nol so; Tværaa (Sydero). 



31. N. Integra W. Sm., V. H. Syn. tab. XI, fig. 22. 

 Rare. Trangisvaag Sydero). 



^ Since writing this paper I have found a Frnstiilia vitrea in i Surtarbrand ^ 

 from Illagil, Iceland. In - Meddelelser fra dansk geologisk Forening' No. 6, p. 27 

 it is reported as Navicula sp. nav. with reference to my present paper on the 

 Færoese Diatoms. 



