Neidium Fogedii Guide
Credit: Loren Bahls
  1. Valves lanceolate to linear-lanceolate
  2. Apices subrostrate to subcapitate
  3. Central area diagonal
  4. Striae diagonal

Valves are lanceolate to linear-lanceolate, with subrostrate to subcapitate apices. Valves are 9-11 µm wide. Both the striae and the central area are oriented diagonally to the apical axis. Striae number 17-18 in 10 µm.