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The gossamer worm (Tomopteris, Neo-Latin from Greek meaning "a cut" + "wing" but taken to mean "fin") [3] is a genus of marine planktonic polychaetes. All described species are known to be holoplanktic , meaning that they spend their entire life cycles in the water column.
The genus Tomopteris consist of about 70 species, and the three other genera of one known species each. [1] Length varies from just 1-2 cm to 30 cm. [ 2 ] These are very active swimmers, and have some of the highest metabolic rate among annelids. [ 3 ]
Phyllodocida are segmented worms and range in size from a few millimetres long to over a metre. Each segment bears a pair of paddle-like parapodia.The prostomium generally has one or two pairs of eyes, a dorsal pair of antennae, a ventral pair of sensory palps and a pair of organs on the neck.
Polychaeta (/ ˌ p ɒ l ɪ ˈ k iː t ə /) is a paraphyletic [1] class of generally marine annelid worms, commonly called bristle worms or polychaetes (/ ˈ p ɒ l ɪ ˌ k iː t s /). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae , which are made of chitin .
Tomopteris, a holoplanktic polychaete worm with an unusual yellow bioluminescence that emanates from its parapodia [1]. Holoplankton are organisms that are planktic (they live in the water column and cannot swim against a current) for their entire life cycle.
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The female measures between 0.9 mm to 1.6 mm in length, while the male ranges between 1.3 and 1.5 mm. [1] The cephalosome is shield-like and short, being only up to twice as long as the urosome.
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