543 



Sandd; Nolso; Sydero. It is not rare ;is ;i rule, l>nl il does nol 

 occur sufficiently often in any of the gatherings to characterize the latter. 



Microneis Cl., Cl., 1. c p. 187. 



SG. Achnanthes delicatula Ktz., V. 11. Syn. tab. XX\ II., figs. .'}— 4. 



Klaksvig (Bordo ; Ejde, Fuglefjord (Ostero ; Thorshavn. Kaibak- 

 fjord Stromo). Usually in a few examples only; l>nl fairly common 

 in the gathering Ironi Klaksvig. 



Achnanthidium Ktz. 1844 Heib. 1863, CL, I. c. II.. p. 191. 

 *87. Achnanthes lanceolata Bréb., V.H.Syn. lab. XXVII., figs.8— 11. 



Thorshavn (Stromo); Famien (Sydero). In both the gatherings a 



l'ew examples only. 



88. A. brevipes Ag., V. H. Syn. lab. XXVI., rigs. LO— 12. 



Not common. Aaerne (Bordo ; Gjov (Ostero); Højvig Stromo. 



A. brevipes Ag. var. parvula Ktz., V. H., 1. c, ligs. 25 — 28. 



Ejde Ostero); Famien Sydero). Found fairly olien in the latter 

 gathering. 



A. brevipes Ag. var. intermedia Klz., V. H., 1. c, ligs. 21 — 24. 

 Abundantly in a gathering from Saxen Stromo). 



Achnanthes Bory S:t Vincent 1822, Cl., 1. c, II., p. 195. 



89. Achnanthes longipes Ag., V. II. Syn. tab. XXVI., ligs. 13—16. 

 Rare. Found only in one gathering the habitat of which is not given. 



EPITHEMIA Bréb. 1838, V. II. Syn., p. 138. 



*90. Epithemiaturgida(Ehr.) Klz, V. H. Syn. lab. XXXI, ligs. 1—2. 



Kalbakfjord S t ro m o). 



*91. E. Sorex Klz.. V. II. Syn. lab. XXXII., ligs. 6—10. 



Kirkebo (S t ro m o). 



*92. E. Argus Ktz., V. II. Syn. lab. XXXI., ligs. 15—17. 



Vaags Ejde Sy de ro . 



*93. E. Zebra Klz., V. H. Syn. tab. XXXI., lig. 9. 



Between Thorsvig and Kvalvig (Stromo). 



94. E. Musculus Klz... V. II. Syn. lab. XXXII., ligs. 14 15. 



Eide Ostero); Kalbakfjord (Stromo. 



All these Epithemiæ occur only in solitary specimens. 



EUNOTIA Ehr. 1837, V. II. Syn., p. 141. 

 *95. E. Arcus Ehr., V. H. Syn. tab. XXXIV., lig. 2. 

 Midvaag Vaago). 



