Compare Gomphonella olivacea
Compare
Gomphoneis pseudokunoi, G. quadripunctata, Gomphonema olivaceoides var. densestriata and Gomphonema olivaceoides var. hutchinsoniana all have stigmoids in the central area. Gomphosinica geitleri has a single stigmoid.
LM scalebar = 10 µm
Length Range
14-40 µm
14-40 µm
Width Range
5-8 µm
5-8 µm
Striae in 10 µm
10-13 in the center of the valve, 12-14 at the ends
10-13 in the center of the valve, 12-14 at the ends
Gomphonella hutchinsoniana
Length Range
18.4-23.4 µm
18.4-23.4 µm
Width Range
5.5-6.1 µm
5.5-6.1 µm
Striae in 10 µm
11.7-14.3
11.7-14.3
Gomphosinica geitleri
Length Range
12-38 µm
12-38 µm
Width Range
4.5-6.6 µm
4.5-6.6 µm
Striae in 10 µm
16-20 near the center valve, 18-20 near the headpole, 16-20 near the footpole
16-20 near the center valve, 18-20 near the headpole, 16-20 near the footpole