parapodium

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Related to parapodial: Notoseta

parapodium

(pl . parapodia) any of the paired numerous segmentally arranged projections of the body of polychaete worms, containing musculature and often bearing chaetae. It is locomotory in function.
References in periodicals archive ?
4-7), but there are some subtle differences in parapodial features in anterior chaetigers, especially in the dorsal cirri.
Submedial pigmented glands occur in the parapodial cirri which are larger than the parapodial lobes.
Diagnosis: Lateral antennae are attached to the parapodial base and auricles are present.
Acicula mas o menos recta, algo curvada distalmente, sobresaliendo un poco del lobulo parapodial.
Sedas compuestas con artejos fuertemente bidentados con espinas gruesas en el margen; acicula recta y sobresaliendo un poco de lobulo parapodial.
Thus, although its swimming behavior has less of a directional component than seen in some molluscs that use parapodial flapping, such as Aplysia brasiliana and Clione, Melibe appears to have more control than the animals that use dorsal-ventral flexions, like Trito nia and Pleurobranchaea.
On the same day, the 3 to 6 setigers of the posterior blastema also develop parapodial buds, a few notopodial capillary chaetae on setigers nearest the abdomen, and small lateral tufts of cilia.
The worm feeds by pumping seawater through its tube with modified parapodial "fans," catching suspended organisms in a mucous net that it then rolls up, using the accessory feeding organ; sends to the mouth, via the mid-dorsal ciliary groove; and ingests (MacGinitie, 1939).
Tissues investigated were parapodial lobes, anterior and posterior mucous glands of the female reproductive system, gametolytic sac, and digestive gland.