The Adeonidae is a family within the bryozoan order Cheilostomatida. Colonies are often upright bilaminar branches or sheets, perforated by large holes in some species (e.g. Adeona cellulosa). The zooids generally have one or more adventitious avicularia on their frontal wall. Instead of ovicells the adeonids often possess enlarged polymorphs which brood the larvae internally.

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