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Chlorophyceae: Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae

 Pandorina charkowiensis
Korshikov 1923
Syn.: Eudorina charkowiensis (Korschikoff) Pascher 1926

Yamagishiella Genus: Colony spherical; 8-16 cells of similar size, close together, mutually compressed; 2-layered gelatinous envelope; cells with 2 equal-length flagella; 2 contractile vacuoles anterior; nucleus central (Illustrated Guide, 1985).
Species:
Similar genus -> > Eudorina (anisogamy); Yamagishiella (single pyrenoid);

Pandorina charkowiensis Korshikov 1923 (or Yamagishiella unicocca Nozaki 1992 ?), cell body μm long, μm wide, with several pyrenoids, x 640, Lake Biwa, Maihara town, Shiga Pref., Japan, June 2003, 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
Eudorina Eudorina Eudorina Eudorina Eudorina Eudorina Eudorina Eudorina Eudorina Eudorina

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