Genus: Locomotive form elongate, cylindrical; anterior hyaline cap always presents; posterior end narrowed; dorsal surface wrinkled; monopodial locomotive form 60-275 micron; L/B 1.4 - 10.5; cytoplasm highly vacuolated.
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P. proteoides
315 x 80 μm
Shirakawa
Fukushima, 1999
Movies
P. proteoides ?
μm
Kaga
Ishikawa, 2000
P. proteoides ?
μm
Kabuto-yama
Nishi-no-miya
Hyogo, 2004
P. proteoides ?
μm
Yukawa-numa
Nishiwaga
Iwate, 2007