(Placoneis) (Placoneis) is a biological genus in the family Cymbellaceae and order Cymbellales.
Placoneis abiskoensis
Placoneis amphibola
Placoneis anglica
Placoneis anglophila
Placoneis balcanica
Placoneis clementioides
Placoneis clementis
Placoneis constans
Placoneis conveniens
Placoneis dicephala
Placoneis elginensis
Placoneis exigua
Placoneis exiguiformis
Placoneis exiguioides
Placoneis explanata
Placoneis gastriformis
Placoneis gastrum
Placoneis hambergii
Placoneis insignita
Placoneis interglacialis
Placoneis neglecta
Placoneis placentula
Placoneis pseudanglica
Placoneis pseudoclementis
Placoneis rostrata
Placoneis signata
Placoneis sovereignae
Placoneis subclementis
Placoneis subgastriformis
Placoneis subplacentula
Afrocymbella
Brebissonia
Cymbella
Cymbopleura
Delicata
Encyonema
Encyonopsis
Kurtkrammeria
Navicymbula
Okedenia
Oricymba
Placoneis