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"A pelagic family of radioflagellate infusorians, typified by the genus Euchitonia. The animalcules are free-floating." -Whitney, 1911

Euchitonia

"A pelagic family of radioflagellate infusorians, typified by the genus Euchitonia. The animalcules…

Euglena viridis is a species of unicellular protists in the Euglenaceae family of flagellate organisms.

Euglena

Euglena viridis is a species of unicellular protists in the Euglenaceae family of flagellate organisms.

Echlanis macrura is a species of rotifer, a microscopic planktonic animal.

Rotifer

Echlanis macrura is a species of rotifer, a microscopic planktonic animal.