Cymbella proxima can be distinguished from C. neocistula by the stockier valve outline and the raphe that is not strongly reverse-lateral in C. proxima. The apices of C. proxima are more narrow and acuminate than in C. proxima f. gravida.
LM scalebar = 10 µm
Length Range
51-104 µm
Width Range
17.8-23.0 µm
Striae in 10 µm
7-8 in the center valve, up to 12 at the ends