Definition of Cycliophora in US English:


plural noun

  • A phylum established for a minute marine invertebrate (Symbion pandora) discovered in the 1990s attached to the mouthparts of lobsters. It is related to the phyla Bryozoa and Entoprocta.

    • ‘The remaining members of this novel metazoan clade were Rotifera, Acanthocephala (together Syndermata), and Cycliophora.’
    • ‘Also unresolved are the phylogenetic positions of Cycloneuralia, Chaetognatha, Gnathostomulida, Cycliophora, and Micrognathozoa.’
    • ‘In the original description we stated that the Cycliophora are related to Entoprocta / Ectoprocta.’
    • ‘The phylogenetic position of Cycliophora is not settled, and more ultrastructural and molecular data are needed.’
    • ‘The marine Cycliophora is the most recently described phylum in the animal kingdom.’


Modern Latin (plural), from Greek kuklios ‘circular’ + pherein ‘to bear’.