rotifer

(redirected from phylum Rotifera)
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rotifer

any minute aquatic multicellular invertebrate of the phylum Rotifera, containing the wheel animalcules, the smallest METAZOANS. They move and feed by means of an anterior ring of cilia.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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Phylogenetic relationships of phylum Rotifera with emphasis on the families of Bdelloidea.