Eunoe nodosa

Eunoe nodosa
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Subclass:	Errantia
Order:	Phyllodocida
Family:	Polynoidae
Genus:	Eunoe
Species:	E. nodosa
Binomial name
	Eunoe nodosa; (M. Sars, 1861)[1]

Eunoe nodosa is a scale worm which is widely distributed in the Arctic Ocean, North Atlantic Ocean and North Pacific Ocean from shallow waters to depths of about 1250m.[2]

Description

Number of segments 37; elytra 15 pairs. No distinct pigmentation pattern. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae distinctly thicker than neurochaetae. Bidentate neurochaetae absent.[3]

Taxonomic comments

Eunoe nodosa and E. oerstedi are very similar and both species occur in the same regions. The two species differ in the ornamentation of the elytra, which are covered with very small nodular tubercles in E. nodosa while in E. oerstedi the tubercles are spiny.[2]

References

Read, G.; Fauchald, K. (Ed.) (2020). World Polychaeta database. Eunoe nodosa (M. Sars, 1861). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=130745
Barnich R, Fiege D (2010) On the distinction of Harmothoe globifera (G.O. Sars, 1873) and some other easily confused polynoids in the NE Atlantic, with the description of a new species of Acanthicolepis Norman in McIntosh, 1900 (Polychaeta, Polynoidae). Zootaxa 2525: 1–18. https://doi.org/10.11646/zootaxa.2525.1.1
Fauchald, K.; Wilson, R.S. (2003). "Polynoidae (Polychaeta)-A DELTA database of genera, and Australian species". In R.S. Wilson; P.A. Hutchings; C. J. Glasby (eds.). Polychaetes: An Interactive Identification Guide. Melbourne: CSIRO Publishing.

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[1] Read, G.; Fauchald, K. (Ed.) (2020). World Polychaeta database. Eunoe nodosa (M. Sars, 1861). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=130745

[Barnich2010-2] Barnich R, Fiege D (2010) On the distinction of Harmothoe globifera (G.O. Sars, 1873) and some other easily confused polynoids in the NE Atlantic, with the description of a new species of Acanthicolepis Norman in McIntosh, 1900 (Polychaeta, Polynoidae). Zootaxa 2525: 1–18. https://doi.org/10.11646/zootaxa.2525.1.1

[3] Fauchald, K.; Wilson, R.S. (2003). "Polynoidae (Polychaeta)-A DELTA database of genera, and Australian species". In R.S. Wilson; P.A. Hutchings; C. J. Glasby (eds.). Polychaetes: An Interactive Identification Guide. Melbourne: CSIRO Publishing.