Gomphoneis cf. eriensioides Kulikovskiy, Kociolek & Solak, 2013

Kociolek, John P., Kulikovskiy, Maxim S. & Solak, Cüneyt N., 2013, The diatom genus Gomphoneis Cleve (Bacillariophyceae) from Lake Baikal, Russia, Phytotaxa 154 (1), pp. 1-37 : 8

Gomphoneis cf. eriensioides Kulikovskiy, Kociolek & Solak ( Figs 85–88 , 401)

In the SEM this taxon has an undulate raphe and dilated proximal raphe ends externally. The stigmoid openings are round and occur in depressions. The striae are composed of round, unoccluded areolae (Fig. 401).

Observations:— Valves given this designation are slightly more linear and narrow than G. eriensioides . The outline of the valve appears somewhat irregular. We continue to look for smaller specimens that match better with these valves. We wait finding a better size diminution series for this group before we decide to describe it as a separate species.

Figures

PLATE 4: LM. Figs 61–84: Gomphoneis eriensioides sp. nov. Fig. 63 is of the holotype. Figs 85–88: G. cf. eriensioides. Scale bar = 10 µm for all figures.