Order: Cell body covered with theca; cingulum (horizontal groove) and sulcus (vertical groove) consipicuous.
Family: With long horn-like processes (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Body flattened; with one anterior and 1-4 posterior horn-like processes; chloroplasts yellow, brown, or greenish; numerous species (Kudo, 1960).
->> Description at WPRNO Google Image Search
C. furca or
C. furcoides ?
μm
anterior straight
Japan, 199?
C. furca or
C. furcoides ?
188 μm
anterior straight
Saitama, 1999
C. furca or
C. furcoides ?
184 μm
anterior curved
Nishi-Urawa
Saitama, 2001
C. furca or
C. furcoides ?
165 x 38 μm
Sannoh park
Nishi-ku
Saitama, 2004
C. furca or
C. furcoides ?
310 x 58 μm
Komado marsh
Showa and Tajima
Fukushima, 2004
C. furca or
C. furcoides ?
156 μm
anterior curved
Asaka
Saitama, 1998
C. furca or
C. furcoides ?
150 μm
anterior curved
Mizumoto Park
Tokyo, 2001
C. hirundinella
μm
anterior straight
Yamanashi, 199?
C. hirundinella
μm
Daidarabotchi-ike
Iizuna-kogen
Nagano, 2003
C. hirundinella
240 x 60 μm
Momijidani h.b.
Shiobara
Tochigi, 2004
C. hirundinella
210 x 76 μm
Lake Kizaki
Omachi
Nagano, 2005
C. hirundinella
μm
Lake Biwa
Maibara
Shiga, 2008