parapodium

[ par-uh-poh-dee-uhm ]

Phonetic (Standard)IPA

noun

, Zoology.

, plural par·a·po·di·a [par-, uh, -, poh, -dee-, uh].

one of the unjointed rudimentary limbs or processes of locomotion of many worms, as annelids.

parapodium

/ ˌpærəˈpəʊdɪəm /

any of the paired unjointed lateral appendages of polychaete worms, used in locomotion, respiration, etc
any of various similar appendages of other invertebrates, esp certain molluscs

First recorded in 1875–80; para- ¹ + -podium

New Latin: from para- ¹+ -podium

Neurocirri slender, subcylindric, somewhat conical distally or sometimes a little clavate, surpassing end of parapodium.

The parapodium is represented with its neural or ventral surface uppermost.

Also decidedly different from exigua in having four lobes at the distal end of each parapodium, two postsetal and two presetal.

The natocirrus is reduced to a small rounded or nodular form slightly above base of parapodium.

The notocirrus is small and occupies the usual place in the angle between the dorsal surface of the parapodium and the body-wall.

April 19, 2024tortuous

[tawr-choo-uhs ]

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