parapodium

[ par-uh-poh-dee-uh m ]

/ ˌpær əˈpoʊ di əm /

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

Origin of parapodium

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

par·a·po·di·al, adjective

The lobes of the parapodia are widely separated and fringed with membrane, appearing like double parapodia.

The Sea-beach at Ebb-tide |Augusta Foote Arnold
Parapodia separate from ventral surface, and generally transformed into 522 swimming lobes.

Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 |Various
Parapodia dorsolateral in position, the anterior ones very thick.

Journal of Entomology and Zoology, Vol. 11. No. 1. |Various
Parapodia and cirri typically pale fulvous and the venter either similar or approaching the dorsum in color.

Journal of Entomology and Zoology, Vol. 11. No. 1. |Various

It is held, however, that these are a pair of parapodia which have shifted forwards.

Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 |Various

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

New Latin: from para- 1 + -podium