— 68 — 



No 123 EMBOUCHURE DE LA RANGE 



SAINT-MALO (France) 



(Sur la vase) 



Achnanthes breyipes Ag. 



— longipes Ag. 



— subsessilis Eh. 

 Actinocyclas subtilis Ealfs. 

 Actinoptychus undulatus Eh. 

 Amphiprora alata W. ^m. 



— elegans W. Sm. 

 Amphora commulata Grun. 

 Bacillaria paradoxa Gmel. 



Biddulphia aurita Bréb. 



— mobiliensis Bailey. 

 Campylodiscus ecclesianus var Greg. 



— Thuretii Bréb. 

 Cerataulus Smithii Balfs. 



CocçoneU dirupta Greg. 



— pseudo-marginata Grun. 



— scutellum Eh. 

 Coscinodiscas excentricus Eh. 

 Cyclotella Meneghiniana Ktz. 

 Hantzschia amphioxys Ktz. 



— marina Donk. 



Hyalodiscus scoticus Grun. 



— stelliger Bailey. 



Licmophora flabellata Ag. 

 Mastogloia lacustris Grun. 

 IHelosira nummuloides Ag. 



— sulcata Eh; petite variété se 



rapprochant de M. siberica 

 Grun. 

 Navlcula amphisbœna Bory. 



— aspera Eh. 



— crabro Eh. v. minor. 



— cyprinus W. Sm. 



Navicnla elegans W. Sm. 



— elliptica Ktz. 



— humerosa Bréb. 



— peregrina Eh . 

 IVitzschia acuminata Grun. 



— sigma. 



— spathulata Bréb. 

 Orthoneis binotata Reper. 

 Plagiotropis Van Heurckii Grun. 



Pleurosisma sestuarii W. Sm. 



— angulatum W. Sm. 



— balticum W. Sm. 



— fasciola W. Sm. 



— hippocampus W. Sm. 



— littorale W. Sm. 



— quadratum W. Sm. 



— .. Spencerii W. Sm. 



— strigosum W. Sm. 



— Wansbeckii Donk. 



Podocystis adriaticum Ktz. 

 Podosira Montagnei Ktz. 



Rbabdonema adriaticum Ktz. 



— arcuatum Ktz. 



Raphoneis amphiceros Eh. 

 Schizonema Grevillei Ag. 

 Scolioplenra latestriata Grun. 



— tumida Grun. 

 Surireila gemma Eh. 



Synedra affinis Ktz». 



— fasciculata Ktz. 



— pulchella Ktz. 



— undulata Greg. 



Trlceratiam antediluvianum (Eh) V.H. 



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