38 NOKDSTEDT, DESMIDIE.« ARCTO^E. 



2. G. ochthodes Nordst. Ad Matotschkin Sharr et Jugor 

 Sharr. 



3. C. cyclicum Lund. * arcticum Nordst. Ad Matotschkin 

 Sharr. 



4. C. holmiense Lund. a et ß integrum. Ad Jugor Sharr. 



5. C. pseudopyramidatum Lund. Cum forma spetsbergens! 

 prorsus congruit. Ad Jugor Sharr. 



6. (7. quadratum Ralfs. Ad Matotschkin Sharr. 



7. C. sinuosum Lundell (Desm. Suec. pag. 47) ß decedens 

 (Reinsch) (Cosmarium plicatum ? c decedens Reinsch 

 in Act. Societ. Senckenb. vol. VI (1867), pag. 114, tab. 

 XXII, C. IL 7). Long. 48-51 /W , lat. 23—28 fj, crass. 

 18—20 [i, lat - isthmi 18—22 p, lat, apic. 23—28. 



Ad Jugor Sharr in insula Waigatsch. 



Haec forma cum figura citata Reinschiana fere prorsus 

 congruit, sed paullo major membran å dense subtiliter pustu- 

 lato-punctatå, Tab. VIII, fig. 4L 



8. C. anceps Lund. cum forma crispida (Cfr. Nordst. Sydl. 

 Norg. Desm. p. 24). Ad Jugor Sharr. 



9. C. granatum Bréb. ß elongatum Nordst. Long. 50 — 59 

 (i, lat. 29 — 30 y. Ad Jugor Sharr. 



10. C. angustatum (Wittr.) Nordst. (Euastrum polare 

 Nordst.). Ad Jugor Sharr. 



11. C. speciosum Lund. a biforme Nordst. et ß simplex Nordst. 

 Ad Jugor Sharr. 



12. C. crenatum Ralfs Crenae laterales 4. Long. 43 //, lat. 

 28 fj,; crense lat. 3: Long. 38 ^,, lat. 28 fj„ Ad Matotsch- 

 kin et Jugor Sharr. 



13. C. obliquum Nordst. (Sydl. Norg. Desm. pag. 23, tab. I, 

 fig. 8), form, minor. In insula Waigatsch ad Jugor Sharr. 



14. C. nasutum Nordst. Ad Matotschkin Sharr. 



15. C. protumidum Nordst. y evolutum Nordst. Ad Matotsch- 

 kin et Jugor Sharr. 



