Adams — A List of Synonyms of Irish Algae. 1 G9 



II. — DuTOMAOEAE — contitiiied. 

 Campylodiscus 



costatus W. Sm. = C. hibernicus Ehr, 



spiralis W. S;?!. = Surirella spiralis Eiitz. 

 Ceratoneis 



Atnphioxys Babh. = C. Arcus Eiltz. 

 Coeeoneis 



Thwaitesii U\ Sin. - Acbnanthidium flexellum Br&b. 

 Cocconema 



cistula EliT. = Cymbella cistula Eirchn. 



cymbiforme Ehr. = Cymbella cymbiforinis Ehr. 



cornutum Ehr. = Cymbella lanceolata Eirchn. 



lanceolatum Ehr. = Cymbella lanceolata Eirchn. 



parvum W. Sm. = Cymbella cymbiformis Ehr. 

 Colletonema 



neglectum TMo. = Navicula gracilis Eiltz. 



vulgare TMo. = Vanheurckia vulgaris H. Van. Heurck. 

 Coscinodiscus 



Smithii W. Sm. = Melosira distans Eiitz. 

 Cyclotella 



punctata W. Sm. = Coscinodiscus lacustris Grun. 



Kotula Eiitz = Stephanodiseus Astraea Grun. 

 Cymatopleura 



apiculata W. Sm. = C. Solea W. Sm. 



parallela W. Sm. = G. Eegula Ealfs. 

 Cymbella 



turgida Greg. = Encyonema turgidum Grun. 



ventricosa Ag. = Encyonema ventricosum Grun. 



zebra Hass. = Epithemia Zebra Eiltz. 

 Denticula 



erassula Nag. = D. tenuis Eiitz. 



mutabUis W. Sm. = Odontidium mutabile TT'", Sm. 



obtusa Kiitz. = Nitzschia Denticula Gnm. 



oceUata W. Sm. = 'D. elegans Eiitz. 



sinuata Sm. = Nitzschia sinuata Gr^m. 

 Diatoma 



flocculosum Aij. = D. vulgare Bory. 



grande W. Sm. = D. vulgare Bory. 



tenue Eiitz. = D. elongatum Ag. 

 Encyonema 



caespitosum Kiitz, = Cocconema caespitosum G. S. West. 



[2 A*] 



