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Haptophyceae: Isochrysidales: Derepyxidaceae
Prymnesiida:

Spongomonas intestinum
(Cienkowski) Kent
Syn.: Phalansterium intestinum Cienkowski

Spongomonas Family: Two long flagella, 1-2 chloroplasts and 1-2 contractile vacuoles present (Starmach, 1985).
Genus: Cell body naked, colorless (without chloroplasts), a contractile vacuole present, colony embedded in a gelatinous matrix of various shape (Starmach, 1985).
Species: colony within a gelatinous matrix straight or curved (Starmach, 1985).

Spongomonas intestinum, cell body 7-8 μm long, 4-5 μm wide, x 400, x 640, Japan, 1998 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Spongomonas Spongomonas Spongomonas

cf. Uroglena Ehrenberg: With connecting processes (Kudo, 1966).

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