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Spirotrichea: Stichotrichida: Sporadotrichina: Oxytrichidae

Ehrenberg, 1830

Suborder: Ventral cirri not as distinct files, except Gastrostyla.
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.
->> Description at WPRNO Google Image Search
S. mytilus
12 samples
3 caudal cirri
S. pustulata ?
138-156 μm
Okinawa, 1997
S. putrina ?
130 μm
Tokyo, 1997
S. notophora
125 μm
Japan, 1997
S. notophora
108 x 45 μm
Chaya-numa p.
Fukushima city
Fukushima, 2005
Stylonychia notophora
S. notophora
96 x 37 μm
Saitama, 1999
Stylonychia notophora
S. notophora
110 x 47 μm
90 x 38 μm
Japan, 199?
Stylonichia notophora
S. notophora
112 x 51 μm
Mizumoto Park
Tokyo, 2001
Stylonychia sp.
110 x 45 μm
Saitama, 2004
Similar Genus ->> Histriculus; Oxytricha

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Stylonychia Stylonychia
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