Asymmetrical biraphid

Asymmetrical biraphid is one of nine morphology categories that we use to provide a visual aid in identification. These categories are artificial (not strictly evolutionary).

Amphora
  4  

Brebissonia
  1  

Cymbella
  16  

Cymbopleura
  32  

Delicata
   

Encyonema
  14  

Encyonopsis
  18  

Entomoneis
  4  

Gomphoneis
  13  

Gomphonema
  22  

Gomphosinica
  1  

Halamphora
  8  

Navicymbula
  1  

Oricymba
   

Reimeria
  3