Genus: Only 1 emergent flagellum; locomotory flagellum directed anteriorly, straight, during swimming; colourless, phagotrophic; no eyespot; rigid, solitary, ovoid, usually flat, with several keels; freshwater (Illustrated Guide, 1985). Oval or pyriform; not plastic; pellicle often with straight or spiral furrow; a single flagellum; many species (Kudo, 1966).
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Similar genus -->> Notosolenus;
P. bicarinata
5 samples
24-30 μm
1997-2008
Petalomonas sp.
P. bicarinata ?
cell μm
flag. μm
Iruma
Saitama, 2003
P. alata
cell 18 x 11 μm
flag. 28 μm
Saitama, 2000
P. alata ?
cell μm
flag. μm
Kahan Park
Kuroiso
Tochigi, 2003
Petalomonas sp.
25 x 13 μm
Shimo-no-koike
Shiga highland
Nagano, 2004
Petalomonas sp.
21 x 10 μm
Shimo-no-koike
Shiga highland
Nagano, 2004
P. asymmetrica ?
19 x 9.5 μm
flag. 24 μm
Sagiyama Memorial P.
Saitama, 2002
Petalomonas sp.
29,30 x 20 μm
Kamonoyachi-numa
Zao onsen
Yamagata, 2005
Petalomonas sp.
Hazama marsh
Ashikaga
Tochigi, 2006
Petalomonas sp.2 ?
cell 12 x 9 μm
flag. 20 μm
Japan, 1998
Petalomonas sp.3 ?
cell 17 x 15 μm
flag. 20 μm
Saitama, 1999