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Oligohymenophorea (formerly Nassophorea): Peniculida: Frontoniina: Frontoniidae

Frontonia leucas
(Ehrenberg, 1833) Ehrenberg, 1838

Genus: Postoral kineties usually to left of oral poykinetids (Illustrated Guide, 1985). Left edge is more curved than right edge; cytopharynx with numerous strong fibrils; ectoplasm with numerous fusiform trichocysts; macronucleus oval; one to several micronulei (Kudo, 1966).
Species: 150-600 μm long; ventrally flattened; dark colored; buccal cavity close to anterior end (How to know the protozoa, 1979). Elongate 150-600 μm long; anterior is not wider than posterior; cytostome small with well defined pre- and postoral suture; a large macronucleus with three micronuclei; single contractile vacuole with 12 radiating canals; many trichocysts (Carey, 1992). Cell body 150-600 μm long (Kahl, 1930).


Frontonia leucas, stock Ckr-1, cell body 391 μm long, μm wide, x 100, x 200, by Y. Tsukii
scale 100 μm scale 200 μm scale 400 μm; x 100 ; scale 50 μm scale 100 μm scale 200 μm; x 200
Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas

Frontonia leucas, stock Ckr-1, stained with Azure C, cell body μm long, μm wide, by Y. Tsukii
scale 16 μm scale 32 μm scale 63 μm; x 640
Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas Frontonia leucas


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