genus Volvox

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Noun1.genus Volvox - type genus of the Volvocaceaegenus Volvox - type genus of the Volvocaceae; minute pale green flagellates occurring in tiny spherical colonies; minute flagella rotate the colony about an axis
protoctist genus - any genus of Protoctista
family Volvocaceae, Volvocaceae - unicellular or colonial biflagellate free-swimming flagellates