Genus: Two flagella emergent from canal, one less than 1/2 the length of the other and directed laterally or posteriorly during swimming; colourless; no eyespot, body plastic; osmotrophic, no ingestion organelle (Illustrated Guide, 1985).
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Distigma sp. ?
11 x 8 μm
Higashi-Matsuyama
Saitama, 2002
