Compare Gomphoneis eriense var. angularis
Compare
This species is distinguished from G. eriense var. eriense and G. eriense var. variabilis by the trullate shape of the valve. This species resembles both G. trullata and G. herculeana var. loweii in the shape of the valve, but is much smaller than either of those two species.
LM scalebar = 10 µm
Length Range
34-67 µm
34-67 µm
Width Range
8-12 µm
8-12 µm
Striae in 10 µm
10-13 at the central portion, 14-16 at the poles
10-13 at the central portion, 14-16 at the poles
Gomphoneis eriense var. variabilis
Length Range
25-45 µm
25-45 µm
Width Range
9.5-12 µm
9.5-12 µm
Striae in 10 µm
10-13 in the center, 14-16 at the poles
10-13 in the center, 14-16 at the poles
Gomphoneis herculeana var. loweii
Length Range
47-140 µm
47-140 µm
Width Range
16-25 µm
16-25 µm
Striae in 10 µm
8-12 in the central portion of the valve, 12-14 at the headpole, 13-16 at the footpole
8-12 in the central portion of the valve, 12-14 at the headpole, 13-16 at the footpole
