The striae of C. distinguenda are narrow near the central area, while the striae of Stephanocyclus gamma are broad. In addition, two shadow lines are visible in S. gamma, while only one is visible in C. distinguenda.

Stephanocyclus meneghiniana has multiseriate striae composed of very fine areolae that are not easily resolved in LM. The central area of is either without ornamentation or with a radially striated pattern. Unlike S. gamma, S meneghiniana may have marginal spines.

LM scalebar = 10 µm
Cyclotella Gamma 1 Cyclotella Gamma 2 Cyclotella Gamma 4 Cyclotella Gamma 5 Cyclotella Gamma 6 Cyclotella Gamma 7
18.1-48.2 µm
Striae in 10 µm

Stephanocyclus meneghiniana

(Ku╠łtz.) Kulikovskiy, Genkal and Kociolek 2022

Cy Meneghiniana 15624A 09212015 07 Cl Cy Meneghiniana 15640A 10132015 08 Cl Cy Meneghiniana 15540A 09172015 04 Cl Cy Meneghiniana 15615A 08242015 11 Cl Cy Meneghiniana 15596A 09042015 24 Cl Cy Meneghiniana 15540A 09172015 21 Cl
6.24-18.12 µm
Striae in 10 µm
7-8 (chambered striae by circumference)

Cyclotella distinguenda

Hust. 1927

Cdis29 2 Cdis22 9 Cdis22 9B Cdis19 6 Cdis12 7 Cdis11 8B Cdis9 6
7.4-21.9 µm
Striae in 10 µm
12.5-14.7 (by circumference)