Spherical to cylindrical colonies. Individual cells in the colony are mostly spherical and arranged radially within perimeter of the matrix whose inside is hollow. Each individual cell has two flagella of equal length protruding from the posterior end as well as a stigma that can be anterior or posterior but is larger in anterior positions.
Similar genera:
Pleodorina is similar morphologically, but is accepted as a separate genus because under ‘normal’ conditions has some obligately somatic (i.e. non-reproductive) cells, while Eudorina has only reproductive cells.