— 132 - 



14 Terpsinoe Brebissonii (Kg.) Grün. 



15 Synedra superba Kg. 



16 Striatella unipunctata Ag. 

 17 — 18 Isthmia Lindigiana Grün. 



19 s Capensis Grün. 



20 Rhabdonema Adriaticum Kg. 



1 Nitzschia 



panduriformis Greg. var. 



minor. 



2 Amphora 



bigibba Grün. 





3 



costata Sm. 





4 



Janischii A. Schm. 





5 



fusca A. Schm. 





6 



magnifica Grev. 





7 



obtusa Greg. 





*8 Amphora 







9 



plicata Greg. 





*10 Amphora 







*11 Amphora 







12 



egregia Ehr. 





*13 Amphora 







14 



Mexicana A. Schm. 





*15 Amphora 







16 



Studeri Jan. 





*17 Amphora 







18 



obtusa Greg. 





19 



rhombica Kitt. 





20 Synedra Bacillus Greg. 



21 * superba Kg. 



22 Climacosira mirificum Grün. 



6. 1 Pleurosigma formosum var. longissima Grün. 



2 = Gründleri Grün. 



3 * Balticum Sm. 



4 Nitzschia valida Cl. et Grün. f. longissima. 



5 Synedra Bacillus Greg, abnorm. 

 *6 Pleurosigma 



*7 Nitzschia 



8 Pleurosigma formosum Sm. 

 *9 Amphiprora 

 *10 Amphiprora 



11 Pleurosigma formosum Sm. 



12 = strigosum Sm. 

 *13 Amphiprora 



14 Climacosphenia elongata Bail. 



