204 



Chaetoceros Ehrenberg 



DISCOVERY REPORTS 



Family CHAETOCERACEAE 

 Subfamily CHAETOCEROIDEAE 



Suborder SOLENIINEAE 

 Family BACTERIASTRACEAE 

 Subfamily BACTERl ASTRO WE AE 



Bacteriastrum Shadbolt 



Family RHIZOSOLENIACEAE 



Subfamily RHIZOSOLENIOIDEAE 

 Rhizosolenia (Ehrenb.) ex Brightwell Gitinardia H. Peragallo 



Family LEPTOCYLINDRACEAE 



Subfamily LEPTOCYLINDROIDEAE 



Dactyliosolen Castracane 



Family CORETHRONACEAE 

 Subfamily CORETHRON01DEAE 



Leptocylindrus Cleve 



Corethron Castracane 



Fragilaria Lyngbye 

 Fragilariopsis Hustedt 

 Asterionella Hassall ex Wm Smith 



Suborder ARAPHIDINEAE 

 Family FRAGILARIACEAE 



Subfamily FRAGILARIOIDEAE 



Synedra Ehrenberg 



Thalassiothrix Cleve et Grunow 

 Thalassionema Grunow ex Hustedt 



Meridion Agardh 



Tabellaria Ehrenberg 

 Grammatophora Ehrenberg 

 Rhabdonema Kiitzing 



Subfamily MERIDIONOIDEAE 



Subfamily TABELLARIOIDEAE 



Licmophora Agardh 

 Entopyla Ehrenberg 



Suborder RAPHIDIOIDINEAE 

 Family EUNOTIACEAE 



Eunotia Ehrenberg 



