Family: Small; delicate collar surrounds a flagellum; sedentary (Kudo, 1966). Solitary or colonial; with or without lorica; stalked or stalkless (How to know the protozoa, 1978).
Genus: Individuals clustered at end of a simple or branching stalk; fresh water (Kudo, 1966). Cells lacks periplast; collar well developed surrounding a single anterior flagellum; 2 or more posterior contractile vacuoles (Illustrated Guide, 1985).
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C. botrytis
14 x 6-8 μm
collar short
Japan, 1999
Movies
C. botrytis
14 x 7-8 μm
collar long
Tsukuba
Ibaraki, 2000
C. botrytis
12 x 9 μm
collar short
Hiroshima, 1998
C. botrytis
13 x 6 μm
Kejo-numa
Furukawa
Miyagi, 2003
C. botrytis
13 x 8 μm
Shiba river
near Owada p.
Saitama, 2005
C. botrytis
13 x 6 μm
collar long
Vermont-Maine
USA, 1999
C. botrytis
9 μm
collar long
Tatebayashi
Gunma, 2001
C. botrytis
9 μm
collar very short
Kuroiso
Tochigi, 2001
C. botrytis
9 x 6 μm
Watarase river
Ashikaga
Tochigi, 2004
C. botrytis
12 x 6 μm
Kiyasse-Hanyu
Hanyu
Saitama, 2006
C. botrytis
12 x 5 μm
Fujimi-hotaru s.p.
Okegawa
Saitama, 2006