Diatoms of North AmericaDiatoms of North America
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Guide to Anomoeoneis sphaerophora

Pfitzer 1871

Anomoeoneis Sphaerophora Guide
  1. Valves elliptic to elliptic-lanceolate
  2. Valves < 22 µm wide
  3. Central area asymmetric
  4. Apices subrostrate to capitate
  5. Axial area bordered by longitudinal columns of areolae

Valves are elliptic to elliptic-lanceolate, and less than 22 µm wide. Apices are sub-rostrate to capitate. The central area is large and asymmetric. The axial area is bordered by longitudinal columns of areolae.