83 — 



Anipbora promeus Greg. 



— robusta Greg. 

 Biddulphia aurita Bréb. 



— Taonieyi Bail. 



Cestodicus pulchellus Grev. var. 

 Chsetoceros didymus Eh. 

 Climacosphenia moniligera Eh. • 



Cocconeia scutellujn Eh. 



— sigmoradians J. Br. var. 



— vitrea J. Br. 

 Coscinodiscus curvatnlns Grnn. 



— — T. latius-striata. 



— lineatus Eh. 



— marginatus Eh. 



— nitidus Grev. 



— nitidulus Grun. 



— radiatus Eh. 



— subtilis Eh. 



Dimeregramnia marinum Greg. 

 Endictya oceanica Eh. \ 



Euodia gibba Bail. 



— — V. af ricana M. Per. — De 



forme rhomboido-orbicu- 

 laire et à cellules cen- 

 trales libres. 

 Grammatophora af ricana Eh. 



— angulosa Eh. 



— lyrata var. 



-7- marina v. undulata. 



— parallela Eh, 

 Hyalodi8cas radiatus Bail. 



Melosira sulcata Eh. 

 nfavicula abruptacar. Ratt. 



— bombus c. egena. 



— cancellata Donk car. 



— clavata Greg. 



— crabro Eh. 



— forcipataGrev. 



— fusca Ralfs. 



— gemmata Grev. 



— — V. spectabilis. 



— granulata Bréb. 

 — _ Hennedyi W. Sm. 



— — V. granulata. 



— — V. neapolitana. 



— Lapeyrereana Temp. et M. Per. 



— lyra var. recta. 



— — var. subtypica. 



— nitescens Greg. 



— praetexta Eh. 



— polysticta v. elliptica. 



— Sandriana Grun. 



— scintillans A. S. 



— spectabilis Greg. 

 Podo&ira Hormoides Mont. 

 Rbabdonema adriaticum Ktz. 

 Raphoneis amphiceros v. rhombica. 



— nitida Grun. 

 Stephanodiscns carconensis v. minor. 

 Synedra.superba Ktz. 



Terpsinœ intermedia Grun. 

 Tracbyneia aspera Cl. var. 

 Trieeratium antediluvianum Eh. 



No 154 



RAZ et AIN — ORAN (Algérie) 



Actinocyclus Ehrenbergii Ralfs. 

 Actinoptycbns undulî^tus Eh. 

 Biddulpbia pulchella Greg. 



— Tuomeyi Bail. 

 Cocconeis vitrea J. B. 

 Coscinodiscus argus Eh. 



— centralis Eh. 



— lineatus Eh. 



Coscinodiscus marginatus Eb. 



— oculus iridis Eh. 



— radiatus Eh. 



— subtilis Eh. 

 Endictya oceanica Eh. 

 Hemiaulus polycistinorum Grun. 

 Hyaiodiscus radiala Bail. 

 Istbmia gigantea M. Per. 



