120 
Literatur-öf versigt. 
8. Isthmia nervosa Kütz. Spitsbergen. Coll, by R. F. Kjellman. 
9. Isthmia enervis Ehrb. Sweden, Koster I:ds. Coll, by R. F. 
Kjellman. 
10. Hhizosolenia styliformis Brtw. Northern Atlantic. Coll, by Th. 
M. Fries. 
11. Campylodiscus angularis Greg. Spitsbergen. Coll, by R. F. 
Kjellman. 
12. Campylodiscus echineis Ehrb. Sweden, Christianstad; fossil. 
Coll, by O. Nordstedt. 
13. Campylodiscus Clypeus Ehrb. Sweden, Christianstad; fossil. 
Coll, by O. Nordstedt. 
14. Synedra Thala ssiothrix Cleve. Davis Strait. Coll, by Th. M. 
Fries. 
15. Synedra Kamtschatica Grun. Spitsbergen, Duym Point. Coll, 
by R. F. Kjellman. Other forms; Grammatophora arctica Cleve. 
— Examined by Grunow. 
16. Synedra decipiens Cleve & Grunow. N. sp Hâvre on marine 
algae. Coll, by T. P. Cleve. 
17. Ceratoneis Arcus Kiitz. Sweden, Skinskatteberg in Östergötland. 
Coll, by I. G. Clason. 
18 Staurosira œqualis (Heib.) Grun. Sweden, Sandhem in Wester- 
götland. Coll, by 0 Nordstedt. — Exam, by Grunow. 
19. Grammonema striatulum Lyngb. Sweden, Lysekil. Coll, by 
V. B. Wittrock. 
20. BerJceleya Dillivynii (Ag.) Grun. Sweden, Göteborg. Coll, by 
o 
Mrs S. Åkermark. 
21. Brebissonia Boechii (Kiitz) Grun. Kiel. Comm, by P. T. Cleve. 
Other forms: Synedra tabulata Kiitz, S. acicularis W. Sm. Coc- 
coneis scutellum Ehrb. 
22. Terpsinoe musica Ehrb. West Indies, Porto Rico, Arecibo 
Coll, by P. T. Cleve. 
23. Grammatophora islandica Ehrb Finmarken, Maassö. Coll, by 
R. F. Kjellman. Other forms: Hyalodiscus Franklini Ehrb., Sy¬ 
nedra Kamtschatica Grun. etc. 
24. Navicula Giyas Ehrb. Kings Co. Nova Scotia; fossil. Comm 
by J. W. Dawson. Other forms: N. Dactylus Ehrb., N. semen 
Kütz., N. major Kiitz., Pleurostaurum (acutum var.) Javanicum 
Grun. & maximum Grun. Eunotia prærupta Ehrb. — Exam, by 
Grunow. 
25. Navicula Reinhardtii Grun. (N. vernalis Donk). Sweden, De- 
geberga in Skåne. Other forms: Cocconeis Pediculus Ehrb. 
Melosira varians Ag. Staurosira Harrisonii (Sm.) Grun. Meri- 
