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Chlorophyceae: Chlamydomonadales (Volvocales): Chlamydomonadaceae
Volvocida: Chlamydomonadina: Chlamydomonadidae

Carteria sp.

Carteria Genus: Four flagella of equal length inserted close together into an anterior papilla; contractile vacuole anterior (An illustrated guide to freshwater zooplankton in Japan, 2000).
Similar tetra-flagellates -->> Zoospores of Geminella;

Carteria sp. (or Tetraselmis ?), cell body ellipsoidal, 15 μm long, 12 μm wide, 4 equal-length flagella, 12 μm long, a large chlroplast, anterior papilla, x 400, x 640, Shinobazu-ike (pond), Ueno, Taito-ku, Tokyo, Japan, March 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
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C. moewusii Gerloff: 9-16 μm long, 5-8 μm wide; ellipsoidal to subcylindrical; chloroplast urn-shaped; pyrenoid laterial; stigma present (Illustrated Guide, 1985).

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