2'M) EiiNST Osriu'i». 



Lo c. Hvalrosodde, Lille Siu'næs(2 sampl.), Vester Elv '2 sampl. \ Thermo- 

 metcrfjeld. 



Arcl. Di sil. !■:. C.reenl.. F/.. Js. Ld., Spl)., .1. M. 



Navicula gibbula var. capitata Lgsl., Lgst. 1. c, fig. 7 a', Tab. 

 nost. XIV, lig. 2. 



Lo c. Hvalrosodde, Nostoc. 



Aict. Distr. H. (ireenl., S])l). 



Tilis lorm, oi" whieh I have j^iven a lij^ure, dillers in the striation, which 

 in the main species is radiate, but here is radiate only in the middle and 

 parallel towards the apices. Laj^erstedt has not shown the striation in his 

 fig. 7a\ hut with rej^ard to the outline and f^cneral appearance his fij^ure 

 agrees very well with the ])rescnt I'orm. Therefore I have no douht that the 

 present form is identical with Xav. (/il)h. capilata Lgst. 



Navicula Lagerstedtii CI., CI. Syn., I, 141 ; Lgst., Spb., Tab. II, 

 fig. 12 (Navicula sp.). 

 Loc. Hvalrosodde. 

 A ret. Distr. E. (ireenl., Sph. 



Naviculæ niicrostigmaticæ Cl., 1894. 

 Stauroneis anceps Khr., Cl. Syn., I, 147; V. H. Trt., Tab. I, 

 figs. 55 — 57 (including also St. anc. linearis and St. anc. amphicephala). 

 Loc. Hvalrosodde, Dove Bugt, Lille Snenæs, Vester Elv (3 samples). 

 Ar ct. Distr. W. Greenl., E. Greenl., Spb., J. M. 



Stauroneis dilatata Ehr. forma minor Tab. nost XIV, fig. 3. 



Long. 'Sl u. Lat. 8//. Striis subtilissimis. 



Valva elliptice-Ianceolata, apicibus capitatis. Raphe area hyalina, 

 mediam valvam versus patescente, cincta. Stauro lato margines non 

 attingente. Striis radiantibus. Nodulis terminalibus inconspicuis. 



Loc. OfT Cape Amélie (Algæ). 



Arct. Distr. The main species: Europe, Siberia. 



Stauroneis javanica Grun., var. oblonga Øst., Øst., Ferskv. 



D. r. Østgr., 260, Tab. I, fig. 4. 



Loc. Hvalrosodde (2 sampl.), Lille Snenæs. 

 Arct. Distr. E. Greenl. 



Stauroneis javanica Grun., var. truncata Øst., Øst. 1. c. fig. 5. 

 Loc. Stormkap, Vester Elv. 

 Arct. Distr. E. Greenl. 



Stauroneis obtusa Lgst., CI. Syn., I, 149; Lgst., Spb., Tab. I, 

 fig. 11. 



Loc. Hvalrosodde. 



Arct. Distr. Fz. Js. Ld., Spb. 



Stauroneis parvula Grun., Cl. Syn., I, 149; O. Müll., Riesengeb., 

 Tab. III, fig. 33. 



Loc. Hvalrosodde, Lille Snenæs. 



Not before recorded from Arctic regions. Other record, Europe. 



