Species: Cell body fusiform or elongated ovoid, 20-53 μm long, tapered at both ends, cell wall thin, chloroplasts plate-like, with two large pyrenoids one located at anterior half and another at posterior half, stigma ovoid or pear-shaped, located at anterior 1/4-1/3 of the cell body, many contractile vacuoles (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
Cell body fusiform to spindle-shaped, 20-80(-120) μm long, 4-10(-12) μm wide; stigma longitudinally elongated elliptical, located close to tapering anterior end; [var. truncatum Skuja 1956]: 20-35 μm long, 3-5 μm wide; [var. opulentum Ettl 1960]: 120-155 μm long, 10-12 μm wide; [var. gigas Hortobagyi 1979]: 100-110 μm long, 15-17 μm wide; (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Cell body spindle-shaped, 23-50 μm long, 4-9 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Google Image Search

C. elongatum 100 x 11 μm 2 pyrenoids many C.V. flag. μm Kumagaya Saitama, 2004	C. elongatum st. Skmo-2, axenic 2 pyrenoids many C.V. flag. μm Kumagaya Saitama, 2004 iden. by Nakada	C. elongatum st. Skmo-2, axenic 2 pyrenoids many C.V. flag. μm Kumagaya Saitama, 2004 iden. by Nakada	C. elongatum st. Skmo-2, axenic 2 pyrenoids many C.V. flag. μm Kumagaya Saitama, 2004 iden. by Nakada
C. elongatum st. Skmo-1, axenic 2 pyrenoids many C.V. flag. μm Kumagaya Saitama, 2004	C. elongatum 90 x 10 μm 2 pyrenoids Oura central p. Oura Gunma, 2006	C. elongatum 87 x 6 μm 2 pyrenoids many C.V. flag. μm Tatebayashi Gunma, 2001	C. elongatum 74 x 4 μm 2 pyrenoids many C.V. flag. 12 μm Akigase Park Saitama, 2002
C. elongatum 65 x 10 μm 2 pyrenoids flag. μm Kami-muneoka Shiki Saitama, 2004	C. elongatum 93 x 6.5 μm 2 pyrenoids flag. μm Todoroki g.l. Kawasaki Kanawaga, 2004	C. elongatum ? 91 x 7 μm pyr. absent ? flag. 14 μm Sannoh Park Saitama Saitama, 2005	C. elongatum ? 80 x 5 μm flag. μm Akasaka-numa Iwatsuki Saitama, 2006
C. elongatum ? 50 x 3 μm pyr. absent ? flag. 12 μm Watarase Wetland Fujioka Tochigi, 2005
C. elongatum 38-48 x 4.5-5.5 μm 2 pyrenoids flag. μm Shimo-muneoka Shiki Saitama, 2004	C. elongatum stock Sssm-1,2, axenic 38 x 9 μm 2 pyrenoids flag. μm Shimo-muneoka Shiki Saitama, 2004	C. elongatum 55 x 8 μm 2 pyrenoids flag. 12 μm Kaminokawa Tochigi, 2004	C. elongatum 45 x 7 μm 2 pyrenoids Shiken-zaike Kamikawa Saitama, 2004
C. elongatum 38 x 10 μm flag. 14 μm Shimo-muneoka Shiki Saitama, 2004	C. elongatum stock Sssm-5 29 x 8 μm Shimo-muneoka Shiki Saitama, 2004 iden. by Nakada	C. elongatum stock Sssm-5 29 x 8 μm Shimo-muneoka Shiki Saitama, 2004 iden. by Nakada

Please click on species name for more images.

Copyright Protist Information Server