(E.G.Jørg.) Lange-Bert. 1999
Kobayasiella okadae has distinct longitudinal lines on each side axial area.
Kobayasiella subtilissima has smaller valves, a smaller length to width ratio, broader apices and more widely spaced striae around the central area.
(Skvortzov) Lange-Bert. 1999
(Cleve) Lange-Bert. 1999