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Heterotrophic flagellates (Jakobids): Histionidae
(Bicoecida or Bicosoecida: )

Histiona velifera
Voigt, 1902

Histiona Group [ Jakobids ]: Biflagellates; flagella without hairs or scales; one held anteriorly, and the other recurrent and lying within a ventral groove (Illustrated guide, 2000).
Family: Loricate jakobids; dorsal surface of trophic cells faces the base of the lorica; ventral groobe extending the length of the cell; a prominent cytoplasmic lip defining the right side of the ventral groove (Illustrated guide, 2000).
Genus: Lorica upright (Illustrated guide, 2000).


Histiona sp., cell body μm long, μm wide, x 640, Toneri Park, Adachi-ku, Tokyo, Japan, December 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Histiona Histiona

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