Eunotia Tenella Guide
Credit: Paula Furey
  1. Ventral margin concave
  2. Dorsal margin parallel
  3. Apices broadly rounded to truncate
  4. Helictoglossae close to apices
  5. Distal raphe curves onto valve face

Ventral margin is slightly concave. Dorsal margin is parallel in longer specimens to more convex in smaller specimens. Apices are broadly rounded to truncate. Helictoglossae are positioned close to the apices. Distal raphe ends curve slightly on to the valve face.