547 



Sigmata ('.nm. ('.asp. s., p. 118. 



119. Nitzschia Sigma W. Sin. V. H. Syn. lab. L.W., fig. 7. 



Rare. Skaalefjord Ostero ; Vestmanhavn Stromo' ; Tværaa 

 S \ (I v ro 



Lanceolatæ Grim.. Cl. & Grun. arct. Diat., p. 94. 



120. Nitzschia tubicola Grun., V. II. Syn. lab. LXIX.. fig. 14. 



Haraldsund., Aaerne Bordo). Found frequently in Ur- gathering 

 ironi Haraldsund. 



121. N. Frustulum (Ktz.) Grun., V. H. Syn. tab. LXVIIL, figs. 

 27 — 29. 



Rare. Klaksvig (Bord o . 



N. Frustulum (Ktz.) Grun. var. perminuta Grun. formå curta, V. H. 

 Syn. tab. LXIX., tig. 7. 

 Rare. Ejde Ostero). 



CAMPYLODISCUS Ehr. 1841, V. H. Syn., p. 189. 



122. Campylodiscus simulans Greg., A. S. N. S. I), tab. III., lig. 10. 

 Aaerne Bordo); Skaalefjord (Ostero). Only a few examples oc- 



curred in each of the two gatherings. 



SURIRELLA Turpin 1826. V. H. Syn., p. 186. 



123. Surirella ovalis Bréb. var. æqvalis Ktz. (= S. ovata Ktz.), 



V. H. Syn. lab. LXXIII., lig. 8 & A. S. Atl. tab. XXIII., fig. 55. 



Rather rare. Klaksvig (Bordo); Ejde (Ostero); Thorshavn and 

 Kalbakfjord S t r 6 m o . 



124. S. Brightwelli W. Sm., A. S. Atl. tab. LVL, ligs. 17-18. 

 Rare. Vaags Ejde (Sy der 6). 



125. S. lata W. Sm., W. Sm. Syn. tab. IX., lig. (il. 



A few examples occurred in a gathering Ironi Molen Ostero). 



Coccochromaticæ. 



MERIDION Ag. 1824, V. H. Syn., p. 161. 

 :i: 12(). Meridion circulare Ag., V. H. Syn. lab. LI., ligs. 10 — 12. 

 Klaksvig Bordo); Kirkebo (Stromo. Only a few examples oc- 

 curred in eaeh of the two gatherings. 



DENTICULA Ktz. 181 t. V. II. Syn., p. 159. 

 *127. Denticula tenuis Ktz. var. frigida Ktz., V. II. Syn. tab. LIX., 

 figs. 35—38. 



Thorshavn S t r 6 m 6). 



Botnny of the Pærdes. 35 



