parapodium

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Related to parapodia: 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 ?
Diagnosis: The ailerons are rod-like and uniramous parapodia occur throughout identifying this specimen as belonging to the genus Hemipodia.
We hypothesized that the increased head width and larger parapodia would provide increased friction and reduce backward slipping for N.
First 2 to 10 parapodia reduced, with small spinigerous chaetae, no cirri.
The same part of the sea slug that was exposed to low light between measurements (sideways with closed parapodia or flat body with open parapodia, depending on the position taken by the sea slug when immobilized) was used to face the optical fiber during the measurements.
is characterized by having 15-16 thoracic chaetigers with four or five rows of uncini and up to three papilliform postchaetal processes on neuropodial lobes, abdominal parapodia bearing flail-tipped neurochaetae and lacking furcated notochaetae, branchiae beginning on chaetiger 10 or 11, interramal cirri, and a low number of subpodial and stomach papillae on anteriormost abdominal chaetigers.
pugaporcinus has well-developed B1 and B2 annulations and biramous parapodia on these segments.
All of these forms have retained segments with well-developed parapodia.
Live animals transparent, with conspicuous white pigmentation in large area across posterior part of prostomium and dorsally across segments 1-3, extending on cirrophores of dorsal cirri of these segments, as spots near bases of all parapodia, and on posteriormost region of gut.
Pairs of serially repeated ovaries are found in most segments and are associated with a nexus of blind-ending genital blood vessels at the base of the parapodia.
1982); and in Clione and Aplysia, which move their wings and parapodia in the dorsal-ventral direction, the motoneurons are also mixed in each pedal ganglia.
For example, distal-less is known to be important in the development of parapodia in polychaete embryos (Panganiban et al.