Brachionidae is a family of rotifers belonging to the order Ploima. Species are found in freshwater and marine habitats.

Description Rotifers in the family Brachionidae range from 170 to 250 μm, and possess a lorica. The lorica is in a single piece and lacks any furrows, groovese, sulci, or dorsal head shields.

The family contains seven genera: Anuraeopsis Lauterborn, 1900 Brachionus Pallas, 1766 (incl. Schizocerca) Kellicottia Ahlstrom, 1938 Keratella Bory de St.Vincent, 1822 Notholca Gosse, 1886 Plationus Segers, Murugan & Dumont, 1993 Platyias Harring, 1913

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