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Chlorophyceae: Chlorococcales: Chlorococcaceae (Oocystaceae)

Tetraedron caudatum
(Corda) Hansgirg var. incisum Lagerheim

Tetraedron Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977).
Species [ var. incisum ]:
Similar genus -->> Tetraedriella (Xanthophyceae); Goniochloris (Xanthophyceae);


Tetraedron caudatum ? or similar species, cell body 10 μm long, 10 μm wide, L/W=1.3, spiny projections 5 μm long, x 640, a pond near Dedono-yu (hot spring), prefectural road route 215, Nishiwaga-machi (town), Iwate Pref., Japan, May 4, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetraedron caudatum Tetraedron caudatum

Images of collecting locality: a pond near Dedono-yu (hot spring), prefectural road route 215, Nishiwaga-machi (town), Iwate Pref., Japan, July 28, 2007 by Y. Tsukii


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