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Oligohymenophorea (formerly Nassophorea): Peniculida: Frontoniina: Frontoniidae

Frontonia depressa
(Stokes, 1886)
Frontonia parvula Penard, 1922

Frontonia depressa 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: Cell body 60-80 μm long; macronucleus short sausage-shaped; a single micronucleus; a single contractile vacuole (Kahl, 1930).
Similar Genus --> Disematostoma


Frontonia depressa (Stokes) ?, cell body 75 μm long, 44 μm wide, L/W=1.7, x 640, No.1, Azami-ike (pond), Norikura highland, Azumi, Matsumoto city, Nagano Pref., November 4, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Frontonia depressa Frontonia depressa Frontonia depressa

Images of collecting locality: No.1, Azami-ike (pond), Norikura highland, Azumi, Matsumoto city, Nagano Pref., November 4, 2007 by Y. Tsukii


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