G.O. Sars, 1897

Description
Body oblong oval. Antenna 1 more or less reaching the distal end of article 3 of the peduncle of antenna 2; antenna 2 flagellum longer than peduncle, 1/4 to 1/5 of the body length.
Cephalon subquadrate, eyes dorso- lateral, prominent. Maxillipedal palp of four articles. Coxal plates wide, extending the whole length of each segment from pereional segment 2 or 3 to 7. Pereiopods all more or less alike. Pleon of two complete segments, and one partial suture in the pleotelson. Pleotelson with the sides fairly straight and converging posteriorly; posterior border characterised by a median obtuse tooth, and obtusely rounded lateral shoulders; keeled. Uropods uniramous.
Colour often uniformly brownish, sometimes with white longitudinal lateral markings, and occasionally with white marbling over the whole dorsal surface; adult females mostly darker than males.

Size
Males recognisable from about 8 mm, ranging to nearly 30 mm; adult females range from 10 to 16 mm.

Depth range/habitat
Generally sublittoral on accumulations of detached algae or fish waste, but also between tidemarks, usually in company with Idotea balthica and Idotea emarginata among cast up drift weed; mayt be found free swimming.

Distribution in the North Sea
All North Sea.

Distribution
On fully marine European coasts from Norway to France.

Kingdom Animalia
Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
Subclass Eumalacostraca
Superorder Peracarida
Order Isopoda
Suborder Valfifera
Family Idoteidae
Genus Idotea
Species Idotea neglecta

Status in World Register of Marine Species

Accepted name: Idotea neglecta Sars, 1897

Scientific synonyms and common names

Idothea neglecta | G.O. Sars, 1897

Holthuis, L.B., 1956. Isopoda en Tanaidacea (KV). Fauna van Nederland, 16. Sijthoff's, Leiden.

Huwae, P.H.M., 1977. De Isopoden van de Nederlandse kust. Wetenschappelijke Mededelingen van de Koninkllijke Natuurhistorische Vereniging, nr. 118.

Naylor, E., 1957a. Isopoda. Sub-order Valvifera, Family Idoteidae, Genera Idotea, Synisoma, Zenobiana; Sub-order Asellota, Family Munnopsidae, Genus Munnopsis. Fiches d'Identification du Zooplancton, 77 (1957). Conseil International pour l'Exploration de la Mer, Kopenhagen.

Naylor, E., 1972. British Marine Isopods. Synopses of the British Fauna (New Series), 3. The Linnean Society, Academic Press, London.

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