Protist Movie Database

Chlorophyta: Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium margispinatum
Hirano var. margispinatum

Genus: Unicellular; variable in shape; a constriction at the center of the cell body; mostly longer than wide; flattened; each semicell hemispherical, spherical, ellipsoidal, rectangular, pyramidal or kidney-shaped; no apical indentation (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body medium in size, covered with spines, sinus open outward, 53-60 μm long, 50-53 μm wide, isthmus 20-26 μm wide; semicells nearly semicircular, basal corner rounded, apex smooth, apical view elliptical (Photomicrographs of the Fresh-water Algae, vol. 3, 1985).

C. margispinatum Hirano var. margispinatum, tape No. 0067, time code 0742, cell body 60 μm long, 48 μm wide, isthmus 27 μm wide, with short spines, Hiroshima Pref., Japan, October 1998, by Y. Tsukii

Please click on species name for viewing movies.
Copyright 1995-2007 Protist Information Server