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Choanoflagellida: Codonosigidae

Codosiga botrytis
or Codonosiga botrytis (Ehrenberg) Kent
Syn.: Epistylis botrytis Ehrenberg

Genus: Individuals clustered at end of a simple or branching stalk; fresh water (Kudo, 1966). Cells lacks periplast; collar well developed surrounding a single anterior flagellum; 2 or more posterior contractile vacuoles (Illustrated Guide, 1985).
Species: Cell body 8-30 μm long, cysts with thick wall (Starmach, 1985).

Codosiga botrytis, cell body 14 μm long, 6-8 μm wide, anterior flagellum 61 μm long, with knob-like terminal structure, Japan, March 1999 by Y. Tsukii

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