Eunoe is a genus of marine annelids in the family Polynoidae (scale worms). The genus includes 48 species which are found world-wide, mostly from depths of 50 m or more.
Description Body dorsoventrally flattened, short, with up to 50 segments; dorsum more or less covered by elytra or short posterior region uncovered. Fifteen pairs of elytra on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29, and 32. Prostomium with or without distinct cephalic peaks and three antennae; lateral antennae inserted ventrally to median antenna. Anterior pair of eyes dorsolateral at widest part of prostomium, posterior pair dorsal near hind margin. Parapodia with elongate acicular lobes with both acicula penetrating epidermis; neuropodia with a supra-acicular process. Notochaetae stout with distinct rows of spines and blunt tip. Neurochaetae more numerous and more slender, with distinct rows of spines distally and exclusively unidentate tips.
The genus was described in 1865, with a modern redescription in Barnich & Fiege (2010). Eunoe is one of a number of related genera with 15 pairs of elytra.
Species The following species of Eunoe were accepted as valid as of October 2019:
Eunoe abyssorum McIntosh, 1885 Eunoe alvinella Pettibone, 1989 Eunoe anderssoni (Bergström, 1916) Eunoe assimilis McIntosh, 1924 Eunoe barbata Moore, 1910 Eunoe bathydomus (Ditlevsen, 1917) Eunoe brunnea Hartman, 1978 Eunoe campbellica Averincev, 1978 Eunoe clarki Pettibone, 1951 Eunoe crassa (Treadwell, 1924) Eunoe depressa Moore, 1905 Eunoe etheridgei (Benham, 1915) Eunoe eura Chamberlin, 1919 Eunoe hartmanae (Uschakov, 1962) Eunoe hozawai Okuda, 1939 Eunoe hubrechti (McIntosh, 1900) Eunoe hydroidopapillata Rzhavsky & Shabad, 1999 Eunoe iphionoides McIntosh, 1885 Eunoe ivantsovi Averincev, 1978 Eunoe kermadeca Kirkegaard, 1995 Eunoe laetmogonensis Kirkegaard & Billett, 1980 Eunoe leiotentaculata Averincev, 1978 Eunoe macrophthalma McIntosh, 1924 Eunoe mammiloba Czerniavsky, 1882 Eunoe nodosa (M. Sars, 1861) Eunoe nodulosa Day, 1967 Eunoe oerstedi Malmgren, 1865 Eunoe opalina McIntosh, 1885 Eunoe pallida (Ehlers, 1908) Eunoe papillaris Averincev, 1978 Eunoe papillosa Amaral & Nonato, 1982 Eunoe purpurea Treadwell, 1936 Eunoe rhizoicola Hartmann-Schröder, 1962 Eunoe senta (Moore, 1902) Eunoe sentiformis Uschakov, 1958 Eunoe serrata Amaral & Nonato, 1982 Eunoe shirikishinai Imajima & Hartman, 1964 Eunoe spinicirris Annenkova, 1937 Eunoe spinosa Imajima, 1997 Eunoe spinulosa Verrill, 1879 Eunoe subfumida (Grube, 1878) Eunoe subtruncata Annenkova, 1937 Eunoe tritoni McIntosh, 1900 Eunoe tuerkayi Barnich & Fiege, 2003 Eunoe uniseriata Banse & Hobson, 1968 Eunoe yedoensis McIntosh, 1885
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