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Noun1.archiannelid - small primitive marine worm lacking external segmentation and resembling polychaete larvae
annelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externally
Archiannelida, class Archiannelida - a class of Annelida
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References in periodicals archive ?
On a new archiannelid, Saccocirrus gabriellae, from Brazil.
Such a mode of adhesion has already been described in bacteria (Corpe, 1974; Marshall, 1974) and diatoms (Cooksey, 1981), and has been proposed in several turbellarians and archiannelids (Martin, 1978).