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Chlorophyceae: Chlorococcales: Oocystaceae

Monoraphidium contortum

Genus: Cell body elongated spindle in shape, straight or curved, sharply pointed at both ends; (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Cell body elongate fusiform, tapering toward the sharply pointed ends, sigmoid, undulate to helicoidally twisted (1 - 1.5 turns), 16-18 μm long between the ends, 1-2 μm wide; two chloroplasts, parietal, entending into the ends, without pyrenoids; cell division produces 2, 4 or 8 "autospores" (Photomicrographs of the Freshwater Algae, 1996).
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Cell body twisted more than 1 turn
Monoraphidium contortum
M. contortum ?
38 x 2.5 μm
L/W=15
Sendabori
Chiba, 2002
Monoraphidium contortum
M. contortum ?
32 x 2 μm
L/W=16
Sayama
Saitama, 2002
xxxx
M. contortum ?
μm
L/W=
Komyo
Yoshimi
Saitama, 2003
Monoraphidium
M. contortum ?
140 x 2 μm
L/W=
water reservoir
near Yamaguchi Univ.
Yamaguchi, 2004
Cell body curved, slightly twisted ?
Monoraphidium
M. contortum
35 x 2.5 μm
L/W=14
Japan, 1997
Monoraphidium
M. contortum ?
30 x 2.5 μm
L/W=12
Japan, 1997
Monoraphidium
M. contortum ?
25 x 1.5 μm
L/W=17
Japan, 1998
xxxx
M. contortum ?
μm
L/W=
Doman-green Park
Nishi-Urawa
Saitama, 2003
Monoraphidium contortum
M. contortum ?
66 x 2.5 μm
L/W=26
Shinobazu-ike
Tokyo, 2001
Monoraphidium
Monoraphidium ?
80 x 5 μm
Sannoh-bori
Sannoh Park
Saitama, 2005

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Monoraphidium contortum
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