- 187 - 



Plearosigma hippocampus W. Sm. 



— Wansbeckii Donk. Tar. 

 Podosira Baldjickiana Grun. 



— hormoides Ktz. 



— Loczyi Pant. 

 Pseadodict^'oneia hungarica Cl. 

 Pyxidicnla cruciata Eh. 

 Pyxilla americana Eh. 



. Rbabdonema adriaticum Klz. 



— — V. fossilis. 



Raphoneia angustata Eh. 



— gemmifera Eh. 



. — — V. biharensis Pant. 



— — V. subtilior Pant. 



Stanroaira Kaynensis Pant. 

 Stephanodiacus Kanitzii Grun. Pant. 



8arirellaantiqua Pant. 



— fastuosa Eh. 



— — V. fossilis. 



— striatula Turpin. 



Synedra biharensis Pant. 



— Bremiana Pant 



Triceratium balearicum Cl. et Grun. 



— laetum Pant. 



— Loczyi Pant. 



— — V. confluens. 



— pileus Eh. 



No 350 SAINT-FLORET — PUY-DE-DOME (France) 



Source minérale 



Achnanthes lanceolata Bréb. 

 Cymbella parva W. Sm. 



— pusilla Grun. 

 Dentienla elegans Ktz. 

 Fragilaria construens Eh. 

 Gomphonema micropus yar. minor. 



— parvulumEh. 

 Navicala appendicuiata Ktz. 



— atomoides Grun. 



— viridis var. commutata f curta. 



IVitzachia bilobata v. hy brida Gru^. 



— communis Bab. 



— — var. obtusa. 



— commutata Grun . 



— fonticola Grun . 



— minuta Bleish. 

 frustulum Grun. 



— Kittiii Grun. 



— palea Ktz. 



— vitrea Norm. 



N" 351 et 352 BEDDINGTON MAINE (États-Unis) 

 Dépôt fossile d'eau douce 



Aehnan«tdiam flexellum Grun. 



Cymbella anglica Lag. 



— cuspidata Ktz. 



— eymbifermia Eh. 



Cymbella Ehrenbergii Ktz. 



— incisa Ktz. 

 Epithemia gibba Kts. 

 Ennotia arcus Eh. 



