Cell body 566 μm long, 48 μm wide, x 100, x 200, x 400
Cell body 604 μm long, 44 μm wide, x 100, x 200, x 400
Pleurotaenium trabecula (Ehrenberg) Nägeli var. trabecula: Vegetative cells cylindrical, L/W = 11-18, constricted at center, 260- (384-616) -660 μm long, 24- (25-45) μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).