Description

Morphological description. Frustule cylindrical, the medium part of a valve slightly tangentially undulated, or flat, valve diameter is 6.4 - 6.7 μm, a clear boundary between edge and central zone is absent, striae wedge-shaped, 8 in 10 μm, single central fultoportula (Figs 6 H, 7 A).

Common Names

Taxonomic Hierarchy

Kingdom: Chromista

Phylum: Ochrophyta

Class: Bacillariophyceae

Order: Thalassiosirales

Family: Stephanodiscaceae

Genus: Cyclotella

Species: Cyclotella cryptica Reimann, Lewin & Guillard, 1963