parapodium

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Related to parapodia: parapodial, Notoseta

par·a·po·di·um

 (păr′ə-pō′dē-əm)
n. pl. par·a·po·di·a (-dē-ə)
1. One of the fleshy paired appendages of polychaete annelids that function in locomotion and breathing.
2. A winglike extension of the foot of certain gastropods, such as the sea butterflies, used for swimming.

[New Latin : para- + Greek pous, pod-, foot; see podium.]

parapodium

(ˌpærəˈpəʊdɪəm)
n, pl -dia (-dɪə)
1. (Zoology) any of the paired unjointed lateral appendages of polychaete worms, used in locomotion, respiration, etc
2. (Zoology) any of various similar appendages of other invertebrates, esp certain molluscs
[New Latin: from para-1 + -podium]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.parapodium - one of a pair of fleshy appendages of a polychete annelid that functions in locomotion and breathingparapodium - one of a pair of fleshy appendages of a polychete annelid that functions in locomotion and breathing
appendage, extremity, member - an external body part that projects from the body; "it is important to keep the extremities warm"
References in periodicals archive ?
In parapodia, chaetae are more abundant and lobes almost equal (to each other)].
The new species is characterized, and differs from other species of the genus mainly by the location of the first pair of branchiae, by having dichotomously branched branchiae in the mid-posterior chaetigers, the absence of subpodial papillae and the morphology of the parapodia.
An attempt was categorized by typical sperm donor behavior, in which the head and anterior portion of the foot lean forward between the recipient's parapodia (Leonard and Lukowiak, 1986); however, penis intromission was not observed after the 15 to 30-minute mating period.
Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
Median parapodia (Figure le) with capillary setae only, 6-9 in the notopodium and 6-11 in the neuropodium, those of the posterior row longer, uniformly thinner, very slender (3-4 [micro]m) and less hirsute, as long as body width.
There are many examples of this strategy, such as the expansions of echinoderm larvae, the appendages and prolongations of decapod crustacean larvae, molluskan parapodia and the feathery appendages of many crustaceans.
Aciculae in anterior parapodia are widened distally, some with a tiny hair-like extension.
1B) have pointed anteriors with shorter parapodia compared to body width.
Both are very similar, except for the number of rudimentary parapodia on the anterior part of the body.
The dark animals, particularly those of a black color morph, have bright neon blue lines on the edge of the parapodia and the tip of the dorsal crest, making them more conspicuous.
This invertebrate shows non-articulated legs, varying in number from 14 to 43 pairs, which remind of the Polychaetus parapodia.