acoelomate


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acoelomate

[ā′sēl·ə‚māt]
(zoology)
Pertaining to an animal that lacks a coelom.
References in periodicals archive ?
Because planarians are acoelomate and do not have vascular systems, the steroid hormones might act with the autocrine or paracrine systems but not with the endocrine system.
The development of muscle patterns in soft-bodied bilaterian animals is not well understood, with most recent information coming from investigations of acoelomate flatworms (2, 3) and the medicinal leech, a derived annelid (4, 5).
(1998) used the character pseudocoelomate in their analysis, although all gastrotrichs are acoelomate.