182 



Pleurosigma attenuatum W. Sm. 

 Pleurosignia BALTICUM W. Sm. 

 Pleurosigma balticuni var. WANSBECKII Dunk. 

 Pleurosigma Brebissonii Grim. 

 Pleurosigma Spencerii W. Sm. 

 I'leurosig-ma Spencerii var. ARKOTII Grim. 



Rhoicosphenia curvata Grun. 



Rhoicosphenia curvata var. FRACTA Cleve. 



Rhoicosphenia Van Heurckii Grun. 



Rhoicosphenia Sp.? 



Rhopalodia AUBERTII Herib. 



Rhopalodia BERRIATI Herib. 



Rhopalodia CHARBONELII Herib. 



Rliopaloclia constricta 0. Miill. (gibberula v.). 



Rhopalodia g-ibba O. Miill. 



Rhopalodia g-ibba var. ventricosa O. Miill. 



Rhopalodia gibberula 0. Miill. 



Rhopalodia gibberula var. constricta 0. Miill. 



Rhopalodia gibberula var. musculws (Musculus). 



Rhopalodia gibberula var. producta 0. Miill. 



Rhopalodia g-ibberula var. succincta 0. Miill. 



Rhopalodia gibberula var. protracta 0. Miill . 



Rhopalodia gibberula var. Van Heurckii 0. Miill. 



Rhopalodia gibberula var. ventricosa (gibba v. vent.) 



Rhopalodia HERIBAFDI M. Per. 



Rhopalodia musculus H. Per. 



Rhopalodia musculus var. CAPITATA M. Per. 



Rhopalodia rupestris 0. Miill. 



Rhopalodia ventricosa (Gibba v. vent.). 



Rhopalodia Sp.? f a MONSTRTJOSA. 



Schizonema CRUCIGERUM W. Sm. 



Schizonema RAMOSISSIMTJM Ag. 



Scoliopleura GALLTCA M. Per. 



Scoliopleura Peisonis Grun. 



Scoliopleura TRAVERTINORDM R. d'Aub. 



SIGMA RADIATA M. Per. 



Stauroneis anceps Eh. 



Stauroueis anceps var. CRASSA Ost. 



Stauroneis anceps var. hyalina M. Per. 



Stauroneis anceps var. hyalina f a CRASSA Ost. 



Stauroneis anceps var. linearis Eh. 



