— 121 - 



9 Cocconeis Britannica Naegl. 



10 Orthoneis splendida (Greg.) Grun. 



11 — 12 Campyloneis Grevillei Sm. 



13 — 14 Orthoneis splendida (Greg.) Grun. 



*15 — 16 Grammatophora 



17 Mastogloia apiculata Sm. 



*18 Nitzschia 



19 = Tryblionella var. maxima Gnin. 



20 Navicula interposita Grev. 



21 * cardinalis (Ehr.) Kg. 



22 = arctica Cl. 



23 Scoliopleura convexa Grun. 



24 Doryphora Boeckii Sm. 



25 — 26 Navicula permagna Bail. et var. 

 *27 Navicula 



28 * distans Sm. 



29 * Vidovichii Grun. var. 



30 s formosa Greg. 



31 * arenaria Donk. 



32 * permagna Bail. var. 

 *33 Navicula 



34 * clepsydra Donk. 



35 Stauroneis pulchella Sm. 



7. 1 Rhizosolenia styliformis Schnitze. 



2 * hebetata Bail. 



3 Synedra superba Kg. 



4 Pleurosigma Balticum Sm. 



5 Nitzschia Sigma Sm. 

 *6 Amphiprora 



7 Pleurosigma spectabile Grun. 

 8 — 9 Climacosphenia elongata Bail. 



10 Pleurosigma rigidum Sm. 



11 * decorum Sm. 



12 * Balticum Sm. 



13 * Terryanum Perag. 



14 Navicula permagna Bail. var. liburnica Grun. 



15 Surirella Febigeri Lew. 



16 Pleurosigma affine Grun. 



17 Nitzschia elongata Hantzsch. 



18 - insignis Greg. var. 



19 Pleurosigma angulatum Sm. 



20 Navicula Lewisiana Grev. 



21 Nitzschia obtusa Sm. var. 



