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Oligohymenophorea (formerly Nassophorea): Peniculida: Frontoniina: Frontoniidae

Frontonia microstoma
Kahl, 1930

Frontonia 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: Anterior wider than the posterior, 200-300 μm long; cytostome small & elongate; preoral suture distinctive; an elongate macronucleus; large contractile vacuole; many small trichocysts (Carey, 1992). Cell body 200-300 μm long (Kahl, 1930).
Similar Genus --> Disematostoma

Frontonia microstoma ?, cell body 163 μm long, 48 μm wide, cytostome small, many small trichocysts, macronucleus elongated ellipsoidal, x 400?, Japan, December 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Frontonia Frontonia

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