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Navicula tumida, W. Sm Nav. anglica, Ralfs. 



— turgida, Ehr Epithemia, Ktz. 



— umbonata, W. Sm.. . . Nitzschia, thermalis, Auers. 



— uncinata, Ehr Epithemia, gibba, Ktz. 



— undulata, Ehr Cymatopleura elliptica, W. Sm. 



— viridis, Ehr. ...... Nav. major, Ktz. 



— Weslermanni, Ehr. . . . Epithemia, Ktz. 



— zébra, Ehr Epithemia, Ktz. 



Nitzchia acuminata, Gr „ Tryblionella, W. Sm. 



— auguslata, Gr Tryblionella, W. Sm. 



— apiculata, Gr Tryblionella, Greg. 



— armoricana, Gr Nitzs. Brebissonii, W. Sm. 



— Buhlmeiniana, Gr. . . . Homœocladia, Rab. 



— circumsuta, Gr Tryblionella, Pritch. 



— constricta, Pritch Nitzs. dubia, W. Sm. 



— elongata, Hass Nitzs. sigmoidea, "W. Sm. 



— fasciculala, Grun Homœocladia sigmoidea. 



— homœocladia, Heib. . . . Homœocladia sigmoidea. 



— hungarica, Gr Tryblionella, Grun. 



— Kutzingiana, Hilse. . . . Nitzs. Palea, W. Sm. 



— latestriata ...... Nitzs. panduriformis, Greg. 



— levidensis, Gr Tryblionella, Greg. 



— média, Htzsch Nitzs. tenuis, var. 



— paradoxa, Gr Baccillaria, Gmel. 



— paxillifer, Heiberg. . . . Baccillaria paradoxa, Gmel. 



— sigmatella, Greg Nitzs. curvula, W. Sm. 



— Smithii, Pritch Nitzs. spectabilis. W. Sm. 



— tabellaria, Grun Grunowia, Rab. . 



— Tryblionella, Htzch.. . . Tryblionella Hautzschiana, Grun. 



— vivax, W. Sm Nitzschia amphioxys, var. 



Nitzchiella Nitzschia. 



Niizchiella longissima, Rab. . . . Nitzschia birostrata, W. Sm. 



Odontidium glaciale, Ktz Diatoma hyemale, var. 



— hiemale, Ktz Diatoma, Grun. 



— mesodon, Ktz Diatoma hyemale, var. 



— mutabile, W. Sm. . ) ,_.,. _ . 



> Staurosira mutabihs, Petit. 



— pinnatum, Ktz. . . . ) 



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