147 



Denticula tenuis var. in flat a W. Sm. 



Denticula thermalis ^tz. 



Diatoma vulgare Bory. 



Diploneis elliptica Cleve. 



Diploneis oralis Cleve. 



Encyonema turgidum Grun. 



Encyonema ventricosum Grun. 



Epithemia argus Ktz. 



Epithemia cistula Kali's, var. crassa Pant. 



Epithemia turgida Ktz. 



Epithemia W estermannn Ktz. 



Epithemia zebra Ktz. 



Epithemia zebra var. undulata M. Per. 



Eunotia gracilis Rab. 



Eunotia lunarit Grun. 



Eunotia lunaris var. undulata Grun. 



Fragilaria capucina Desm. 



Fragilaria construens Grun. 



Fragilaria mutabilis Grun. 



Fragilaria mutabilis var. intercedens Grun. 



Gomphonema constrictum Eh. 



Gomphonema exiguum Ktz. 



Gomphonema gracile Eh. 



Gomphonema intricatum Ktz. 



Gomphonema intricatum var. pumila Grun. 



Gomphonema montanum Schum. 



Gomphonema parvulum Ktz. 



Gomphonema parvulum var. lanceolata Grun. 



Gomphonema parvulum var. subcapitata Grun. 



Gomphonema subclavatum Grun. 



Gomphonema vibrio Eh. var. hebridense Greg. 



Hantzschia amphioxys Grun. 



Hantzschia amphioxys var. vivax Grun. 



Hantzschia VIRGATA Grun. - - Nouveau pour la region. 



Melosira Dickiei Ktz. 



Melosira Juergensii Ag. - - Nouveau pour la region. 



Meridian circulare Ag. 



Navicula ambigua Eh. 



Navicula ambigua var. CAPTTATA Ost. var. nov. (PI. YIT, 



fig. 4; p. 121). 

 Navicula appendiculata Ktz. 



