Lange-Bert. and E.Reichardt in Rumrich et al. 2000
Valves elliptic to linear-elliptic
Central area round to oval
Striae uniseriate
Striae 11-12 in 10 µm
Longitudinal canals narrow
Valves are elliptic to linear-elliptic. Central area is round to oval. Striae are uniseriate and number 11-12 in 10 µm. Longitudinal canals are narrow.