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
  13  

Cymbopleura
  22  

Delicata
   

Encyonema
  9  

Encyonopsis
  11  

Entomoneis
  4  

Gomphoneis
  14  

Gomphonema
  13  

Halamphora
  6  

Navicymbula
  1  

Oricymba
   

Reimeria
  2