ImageLibrary_J ImageLibrary_E

Dinophyceae: Gymnodiniales: Gymnodiniaceae
Dinoflagellida: Diniferina: Gymnodiniidae

Gymnodinium
Stein 1883 (Mizuno & Takahashi eds. 2000)
F. Stein 1878 (John et al. eds. 2002)

Order (Gymnodiniales) & Family: Cell body without theca (Illustrations of The Japanese Fresh-water Algae, 1977).
Family (Gymnodiniidae): Motile stage dominates life cycle; essentially athecate (or with very numerous thin thecal plates); well-developed cingulum (Illustrated Guide, 1985).

Genus: Cingulum (horizontal groove) located at the center of the body (Illustrations of The Japanese Fresh-water Algae, 1977). Cingulum more or less median; sulcus straight (Illrustrated Guide, 1985).
->> Description at WPRNO Google Image Search
Chloroplasts blue-green in color
Gymnodinium aeruginosum
G. aeruginosum
41 x 31 μm
Okubo Ryoke
Akigase park
Saitama, 2005
Gymnodinium
G. aeruginosum ?
24 x 18 μm
Jizoh-bori
Sannoh Park
Saitama, 2005
Gymnodinium
G. aeruginosum ?
29 x 20 μm
Imori pond
Myoko highland
Niigata, 2004
Gymnodinium
G. aeruginosum ?
29 x 17 μm
Banpaku memorial p.
Tsukuba
Ibaraki, 2006
Gymnodinium
Gymnodinium sp.
33 x 23 μm
Banpaku memorial p.
Tsukuba
Ibaraki, 2006
Chloroplasts yellow - brown in color
Gymnodinium
G. carinatum
39 x 25 μm
Handa numa
Tochigi, 1999
Gymnodinium
G. paradoxum
μm
Mizuko
Fujimi
Saitama, 2003
Gymnodinium
G. paradoxum ?
36 x 32 μm
44 x 40 μm
Kodanuki marsh
Fujinomiya
Shizuoka, 2005
Gymnodinium
G. paradoxum ?
40 x 37 μm
Mida-ga-hara
Gassan
Yamagata, 2005
Gymnodinium
G. paradoxum ?
34 x 26 μm
Handa numa
Tochigi, 1999
Gymnodinium paradoxum
G. paradoxum ?
33 x 30 μm
Hanasaki water p.
Kazo
Saitama, 2005
Gymnodinium paradoxum
G. paradoxum ?
31 x 24 μm
Shimo-no-koike
Shiga highland
Nagano, 2005
Gymnodinium
G. paradoxum ?
31 x 27 μm
Japan, 199?
Gymnodinium
G. paradoxum ?
30 x 24 μm
Tanohara marsh
Shiga highland
Nagano, 2004
Gymnodinium paradoxum
G. paradoxum ?
25 x 23 μm
Mizuko
Fujimi
Saitama, 2004
Gymnodinium paradoxum
G. paradoxum ?
24 x 19 μm
Ushidome-ike
Norikura highland
Nagano, 2005
Gymnodinium
G. paradoxum ?
37 x 30 μm
Ohnuma
Nasu-shiobara
Tochigi, 2007
Gymnodinium
G. paradoxum ?
25 x 21 μm
Komado marsh
Showa & Tajima
Fukushima, 2004
Gymnodinium
G. paradoxum ?
23 x 19 μm
26 x 24 μm
near Karakemi m.
Omachi
Nagano, 2005
Gymnodinium
G. paradoxum ?
23 x 19 μm
kenko-fukushi m.p.
Koshigaya
Saitama, 2005
Gymnodinium
G. paradoxum ?
22 x 20 μm
Ikenokochi marsh
Tsuruga
Fukui, 2004
Gymnodinium
G. paradoxum ?
21 x 19 μm
near Toda bridge
Itabashi-ku
Tokyo, 2005
Gymnodinium
G. paradoxum ?
20 x 19 μm
nature obs. p.
Kitamoto
Saitama, 2005
Gymnodinium
G. paradoxum ?
20 x 17 μm
Tanohara marsh
Shiga highland
Nagano, 2004
Gymnodinium
G. paradoxum ?
18 x 15 μm
Kawaguchi Natural p.
Kawaguchi
Saitama, 2005
Gymnodinium
Gymnodinium sp. ?
50 x 41 μm
Kowashimizu
Suwa
Nagano, 2005
Gymnodinium
Gymnodinium sp.
21 x 18 μm
Kitamoto n.o.p.
Kitamoto
Saitama, 2006
Chloroplasts absent
Gymnodinium
G. veris
17 x 18 μm
Saitama, 1999
Gymnodinium
G. veris ?
17 x 12 μm
Ikenokochi marsh
Tsuruga
Fukui, 2004
Gymnodinium
Gymnodinium sp.
35 x 35 μm
Nanbata castle p.
Fujimi
Saitama, 2005
Gymnodinium ordinatum
G. ordinatum
13 x 10 μm
Senjo-ga-hara
Nikko
Tochigi, 2003
Dinoflagellate
G. ordinatum ?
chloroplast absent ?
17 x 13 μm
Akigase Park
Saitama, 2002
Gymnodinium
G. ordinatum ?
chloroplast absent ?
20 x 17 μm
Japan, 199?
Gymnodinium
Gymnodinium sp. ?
or Glenodinium ?
20 x 16 μm
Japan, 199?

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