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Cym-bella ventricosa Ktz. 



Denticula tenuis Ktz. 



Denticula tenuis var. intermedia Grun. 



Diploneis elliptica Cleve. 



Epithemia argus Ktz. 



Gomphonema intricatum Ktz. 



Gomphonema parvulum Ktz\ 



Hantzschia amphio.vys Grun. 



Melosira Roeseana Rab. 



Navicula ajrpendiculata Ag. 



Navicula bacillaris Greg. 



Nvicula Brebissonii Ktz. 



Navicula cincta Eh. 



Navicula cincta Eh. var. Heufleri Grun. 



Navicula notata M. Per. 



Navicula oblonga Ktz. 



Navicula silicula Eh. 



Navicula silicula var. ventricosa Eh. 



Navicula streptoraphe Cleve. 



Navicula streptoraphe var. minor Cleve. 



Navicula subcap-itata Greg. 



Navicula subcapitata var. paucistriata Grun. 



Navicula viridis Ktz. 



Nitzschia commutata Grun. 



Nitzschia dubia "W. Sm. 



Nitzschia lineari's W. Sm. 



Nitzschia vitrea Norm. 



Nitzschia vitrea var. gallica M. Per. 



Rhopalodia giberula O. Mull. 



Rhopalodia gibberula var. Vaw Heurckii O. Mull. 



Rhopalodia rupestris O. Mull. 



Stauroneis anceps Eh. 



Surir ella ovahs Ktz. 



Surirella ovata Ktz. 



Synedra delicatissima W. Sm. 



