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Spirotrichea: Stichotrichida: Sporadotrichina: Oxytrichidae

 Stylonychia notophora
Stokes, 1885

Stylonychia putrina Family: Frontoventral cirri scattered on forward, mid- and rear areas of ventrum.
Genus: Marginal cirri not confluent at rear; oral cavity wide, expansive; caudal cirri (usually 3) prominent (Illustrated Guide, 1985). Cell body ovoid to elongate, inflexible; large AZM supported anteriorly by a collar; two rows of marginal cirri not confluent posteriorly; strongly-developed frontoventral & transverse cirri present; three long, stiff caudal cilia; dorsal surface ornamented by short rows of cirri; two macronuclei; cyst stage recorded in some species (Carey, 1992).
8 (3 + 2 + 3) frontal, 5 ventral, 5 transverse, 3 caudal cirri.
Species:

Stylonichia notophora or S. putrina ? (Oxytrichidae, Sporadotrichina, Stichotrichida, Stichotrichia, Spirotrichea), cell body 112 μm long, 51 μm wide, x 400, x 640, Mizumoto Park, Katsushika-ku, Tokyo, Japan, July 2001 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
Stylonichia notophora Stylonichia notophora Stylonichia notophora
scale 31 μm scale 63 μm scale 94 μm; x 640
Stylonichia notophora

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