Compare Cymbella tumida
Compare
The apices of C. proxima are not protracted, and several stigmata may be present. Cymbella turgidula is smaller, lacks protracted apices and the central area is smaller. Encyonema leibleinii is superficially similar in valve shape, but differs in many features.
LM scalebar = 10 µm
Length Range
48-67 µm
48-67 µm
Width Range
16-18 µm
16-18 µm
Striae in 10 µm
10-11
10-11
Cymbella proxima
Length Range
51-104 µm
51-104 µm
Width Range
17.8-23.0 µm
17.8-23.0 µm
Striae in 10 µm
7-8 in the center valve, up to 12 at the ends
7-8 in the center valve, up to 12 at the ends
Cymbella turgidula
Length Range
27-46 µm
27-46 µm
Width Range
9.5-14 µm
9.5-14 µm
Striae in 10 µm
9-11 dorsal in the center valve, 12-13 at apices
9-11 dorsal in the center valve, 12-13 at apices
