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Spirotrichea: Stichotrichida: Oxytrichidae

 Oxytricha lanceolata
Shibuya, 1930
Identified by Tadao Matsusaka at Kumamoto University

Oxytricha lanceolata Family: Frontoventral cirri scattered on forward, mid- and rear areas of ventrum.
Genus: Ellipsoid; flexible; ventral surface flattened; dorsal surface convex; 8 frontal, 5 ventral, 5 transverse, short caudal cirri (Kudo, 1966). Oral cavity not wide; macronuclei oval; marginal cirri confluent at rear; body laterally flexible (Illustrated Guide, 1985).
Species:

Oxytricha lanceolata, early stage in cyst formation (left, center) cell body 55 μm long, 45 μm wide, and a mature cyst (right) 40 μm in diam., x 400, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Oxytricha Oxytricha Oxytricha

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