Acoela


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Acoela

[ā′sēl·ə]
(invertebrate zoology)
An order of marine flatworms in the class Turbellaria characterized by the lack of a digestive tract and coelomic cavity.
References in periodicals archive ?
The importance of the larval shell in the classification of the sacoglossa and the acoela (Gastropoda Opisthobranchia).