Diatoms. 



225 



Pag. 



Stephanogonia actinoptychus (1]hrb.) Grun 201 



polygona Ehrb 201 



Striatella unipunctata (Lyngb.) Ag 203 



Surirella (astuosa Ehrb 206 



— gemma Ehrb 206 



— lata W. Sm., = i'astuosa var. 



— iiaricularis Breb., = Nitzschia n. 



ovalis Breb., et var 206 



— ovata Kctz., = ovalis var. 



Synedra affinis Kutz., var u'ol 



bacillus Greg 202 



— crystallina (AG.) Kutz 202 



Hennedyana Greg 202 



— hyperborea Grin, var 202 



— kamtschatica Grun.. var 201 



— rostellata Grun 202 



— superba Kutz -< 12 



— tabulata Kutz., = affinis var. 



ulna (Nitzsch.) Ehrb 201 



Pag 



Synedra undulata (Bail.) W. Sm 202 



Tabellaria flocculosa (Roth.) Kutz 203 



Tbalassiosira decipiens (Grun.) J0rg 198 



gravida Cl L98 



Thalassiothrix nitzschioides Geun 202 



Tiacliyneis aspera (Ehrb.) Cl 21V 



Triceratium alternans Bail., = Biddul] 1 1 i ; » a. 



arctfcum Beightw., = Biddulphia a. 



/urns Kiikb., = Biddulphia f. 



— formosum Beightw., = Biddulphia E. 



— latum Grev., = Biddulphia 1. 



— nubile Witt., = Biddulphia n. 

 punctatum Brightw., = Biddulphia p. 



Weissei Grun., = Biddulphia W. 



Tropidoneis lepidoptera (Greg.) Cl 208 



maxima (Gbeo.) Cl 208 



Vanheurckia rhomboides Breb., = Prustulia r. 



Xanthiopyxis umbonata Urev 198 



Zi/i/ixiirjs bahritti Kuril, = Biddulphia arrtica (BRIGHTW.). 



