Parapodium

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Related to parapodia: parapodial, Notoseta

parapodium

[‚par·ə′pōd·ē·əm]
(invertebrate zoology)
One of the short, paired processes on the sides of the body segments in certain annelids.
A lateral expansion of the foot in gastropod mollusks.

Parapodium

 

one of the lateral processes on the body of polychaetous worms. The parapodia are borne in pairs by each trunk segment and serve primarily as locomotive organs. Parapodia typically consist of a ventral and a dorsal branch. Each branch is equipped with a cluster of bristles and with a tactile antenna, which at times is modified into a gill.

References in periodicals archive ?
Abdominal parapodia are conical lobes with neurosetae in a C-shaped arrangement.
Papillated stylodes occur on the parapodia and there are compound falcigers in the neuropodia.
dendritica, consistent with the hypothesis that thewider head and larger parapodia of N.
However, the light conditions that reach the sea slug would be different from those desired if the sea slug could hide or change parapodia position.
Moreover, they were allowed to move their parapodia while exposed to light (20 [micro]mol photons [m.
All thoracic parapodia biramous; thoracic postchaetal lobes of both rami inconspicuous.
All thoracic parapodia biramous; first one similar to the remainder but smaller.
Median parapodia of male with dorsal cirri widened and crenulated, three times longer than ventral cirri, with widened ligules of different sizes (Fig.
The number of parapodia, biomass and length are widely variable; however, the paragnath number and their arrangement in four pharyngeal areas (V:I, VI:4, VII-VIII: >30) is remarkably stable.
The latter include well-developed septation of segments A1-9, infolding of the epidermis designating segments of regions B and C, presence of parapodia on segments of regions B and C, and an enlarged coelomic cavity within region B.
The body form and parapodia are highly modified in relation to members of other polychaete families to enable this unique feeding behavior.