Diatoms of North AmericaDiatoms of North America
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Guide to Cosmioneis reimeri

R.L.Lowe and A.R.Sherwood 2010

Cosmioneis Reimeri Guide
Credit: Rex Lowe
  1. Valves lanceolate
  2. Ends protracted
  3. Central area slightly expanded

Valves are lanceolate with slightly rounded, protracted ends. Internally, a narrow pseudoseptum is present. The central area is slightly wider than the axial area.