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Compare Gomphoneis herculeana var. loweii

Kociolek and Stoermer 1988

Compare

Because of its trullate shape, G. herculeana var. loweii might be confused with Gomphoneis trullata. The valves of G. herculeana var. loweii are more robust, have coarser striae and the apices are broadly rounded.

LM scalebar = 10 µm
Gomphoneis herculeana var. lowei LM6 Gomphoneis herculeana var. lowei LM1 Gomphoneis herculeana var. lowei LM4 Gomphoneis herculeana var. lowei LM2 Gomphoneis herculeana var. lowei LM3 Gomphoneis herculeana var. lowei LM5
Length Range
47-140 µm
Width Range
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

Gomphoneis trullata

Kociolek and Stoermer 1986

Gomphoneis trullata LM1 Gomphoneis trullata LM6 Gomphoneis trullata LM3 Gomphoneis trullata LM5 Gomphoneis trullata LM7 Gomphoneis trullata LM4
Length Range
30-85 µm
Width Range
11-15 µm
Striae in 10 µm
10-14