Genus: Colonies of 4, 8, 16 or 32 cells in a gelatinous sheath; cell body long cylindroid, strongly curved or twisted, both ends rounded; a chloroplast full within the cell; a single pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: cell body slender cylindrical in shape, strongly curved, 3-8 μm long, 1-2 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar Genus -->> Selenastrum; Selenodictyum; Dimorphococcus;
Cell body nearly cylindrical (both side parallel)
K. contorta ?
12 x 2.3 μm
Uruguay, 1999
K. contorta
10 x 1.4 μm
Umi-no-nakamichi
Fukuoka, 2001
K. contorta
12 x 1.6 μm
Matsumoto
Nagano, 2001
K. contorta
10 x 2 μm
Mizumoto Park
Tokyo, 2001
K. contorta
9 x 2 μm
Kawagoe
Saitama, 2002
K. contorta ?
12 x 3 μm
Tsukuba
Ibaraki, 2002
K. contorta ?
μm
Aquatic botanical g.
Sawara
Chiba, 2004