Biology:Adyte hyalina

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Adyte hyalina
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Clade: Pleistoannelida
Subclass: Errantia
Order: Phyllodocida
Family: Polynoidae
Genus: Adyte
Species:
A. hyalina
Binomial name
Adyte hyalina
(G.O. Sars, 1873)

Adyte hyalina is a species of marine annelids in the family Polynoidae (scale worms); it is the single recognised species in the genus Adyte and occurs in the North-east Atlantic Ocean and Mediterranean Sea, at depths down to nearly 300 metres[1][2]

Description

[As for the parent genus Adyte ] Body dorsoventrally flattened, long, up to about 70 segments and 15 pairs of elytra on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29, and 32, leaving long tail uncovered. Prostomium rounded anteriorly (without peaks) and with three antennae; lateral antennae inserted ventrally to median antenna. Parapodia with elongate acicular lobes with both acicula penetrating epidermis in notopodium but not neuropodium. Notochaetae stout, with few rows of spines and slightly notched tiup. Neurochaetae more slender and more numerous, faint rows of spines only distally, and minutely bidentate or unidentate tip (see Bock et al., 2010 for detailed description) [2].

Adyte hyalina is colourless or yellowish, up to thirty millimetres long, and has a dark band running down its back. It has fifteen pairs of scales or elytra which cover the length of the body. These are delicate, transparent and rounded and do not meet at the back.[3]

Nomenclature

Adyte hyalina is often referred to as Adyte assimilis (McIntosh, 1874) but the latter name is a subjective synonym and Adyte hyalina is the current accepted name[4][2].

Biology

Adyte hyalina is widely distributed round the shores of Britain where it is found on the lower shore and always in association with the sea urchin, Echinus esculentus, among whose spines it lives.[3] It ranges from the littoral to the sublittoral zones and is often associated with starfish, brittle stars and feather stars.[3] It is an omnivore and both a scavenger and a predator.[1]

References

  1. 1.0 1.1 Read, Geoffrey B.; Fauchald, Kristian (2020). "The World Polychaeta Database". http://www.marinespecies.org/polychaeta/. 
  2. 2.0 2.1 2.2 Bock, Gordon; Fiege, D.; Barnich, R. (2010). "Revision of Hermadion Kinberg, 1856, with a redescription of Hermadion magalhaensi Kinberg, 1856, Adyte hyalina (G.O. Sars, 1873) n. comb. and Neopolynoe acanellae (Verrill, 1881) n. comb. (Polychaeta: Polynoidae)". Zootaxa 2554: 45–61. doi:10.11646/zootaxa.2554.1.4. .
  3. 3.0 3.1 3.2 John Barrett and C M Young, Collins Pocket Guide to the Sea Shore (1958) p.68
  4. Pettibone, Marian H. (1969). "Review of some species referred to Scalisetosus McIntosh (Polychaeta, Polynoidae)". Proceedings of the Biological Society of Washington 82: 1–30. .


Wikidata ☰ Q3054802 entry