Similar Genus -> > Metacystis
Genus: Ovoid with caudal cilia; lorica flask-shape, ringed; cytostome with four rows of long cilia;
body surface with shorter cilia; macronucleus round (Kudo, 1966).
Large protruding vacuole absent (Carey, 1992).
lorica 120 μm long, 19-25 μm wide, L/W=4.8-6.3,
x 400, x 640, Yukawa-numa (pond), Nishiwaga-machi (town), Iwate Pref., Japan, July 28, 2007 by Y. Tsukii
150 μm; x 400 :
94 μm; x 640
Lorica 115 μm long, 19-23 μm wide, L/W=5.0-6.0, x 640
Images of collecting locality:
Yukawa-numa (pond), Nishiwaga-machi (town), Iwate Pref., Japan, July 28, 2007 by Y. Tsukii
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