Baillie-Back. 1 Cymbopleura heilprinensis [Cymbella (Cymbopleura) designata = Cymbopleura citriformis PH] (6857) 2Cymbella (Cymbopleura) designata = Cymbopleura citriformis (6857) 3 Cymbella proxima (6858) 4 Cymbella krammeri or C. neocistula var. lunata [? PH] (6857) 5, 6 Cymbella neocistula (6857, 6858) 7–11 Cymbella cleve-eulerae [C. neocistula var. PH] (6857, 6862). Scale bar: 10 µm.