537 



G. exiguum Ktz., var. pachyclada Bréb., V. H. Syn. tab. XXV., 

 rigs. 31—32. 



G. exiguum Kl/., var. arctica Grun., V. H. I. c. lig. 30. 



These varieties are found dispersed in several (17 of the gatherings; 

 var. arctica occurs perhaps more frequently than var. pachyclada. 



Videro; Bordo; Stromo; Vaagd; Nolso; and Sydero. 



39. G. kamtschaticum Grun., V. H. Syn. lab. XXV., fig. 29. 



Coraraon. Found in 27 gatherings, and in several of them abundantly 

 Bordd; Ostero; Stromo; Sando; Store Dimon; Sydero). 



It varies somewhat. Thus, I i'oun^ scattered among the typical 

 forms others, which agree well with the almost oval form Ironi the 

 coast of California, figured in A. S. All. lab. CCXIII., tig. 44, and the one 

 from Vancouver Island il. c. lin. Hi . 



TRACHYNEIS Cl. Cl. Syn. I., p. 190. 



40. Trachyneis aspera Ehr. var. pulchella W. Sin., W. Sm. Syn. 



lab. XIX., p. 194. 



Found dispersed in several (10) of the gatherings from Ostero; 

 Stromo; and Sydero, but never in large quantities. 



T. aspera Ehr. var. vulgaris CL, A. S. AU. tab. XLVIII., lig. 5. 

 Only found in a gathering from Thorshavn (Stromo). 



ANOMOEONEIS Pfitzer 1871. Cl. Syn. II., p. 5. 



*41. Anomoeoneis brachysira (Bréb.) Grim., V. H. Syn. tab. XII., 

 figs. 8—9. 



Kvannesund (Videro); Kalbakfjord Stromo). 



NAVICULÆ HETEROSTICHÆ CL, Cl. Syn. II , p. 8. 



*42. Navicula cocconeiformis Greg., V. H. Syn. tab. XIV., tig. 1. 

 Kalbakfjord (Stromo . 



NAVICULÆ LINEOLATÆ Cl., Cl Syn. II., p. 10. 



*43. Navicula cryptocephala Klz., V. H. Syn. tab. VIII., fig. 5. 

 Between Thorsvig and Kvalvig Stromo). 

 :i 44. N. rhyncocephala Ktz., V. H. Syn. tal). VIL, tig. 31. 

 Between Thorsvig and Kvalvig Stromo). 



45. N. avenacea Bréb. (Schizonema Smithii Ag.), V. H. Syn. 

 tab. XV., tig. 33. 



Hqjvig Stromo); Famien Sydero). 



