Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Temoridae ( Family )
            Eurytemora ( Genus )
Eurytemora gracilis  Sars, 1898   (F,M)
Syn.: Temorella gracilis Sars,1898 (p.336, figs.F,M)
Sars, 1902 (1903) (p.102: Rem.); Tollinger, 1911 (p.212, fig.16); Willey, 1920 a (p.11, figs.F); Gurney, 1931 a (p.185); Shih & al., 1971 (p.208); Heron & Damkaer, 1976 (p.129, Table 2); Kos, 1977 a (p.20); 1991 (p.112-116, figs. 38-39); 2016 (p.74, figs. F, M, Rem.)
Species Eurytemora gracilis - Plate 1 of morphological figuresIssued from : A. Willey in Rep. Can. Arct. Exp. 1913-18, 1920, VII, Part K. [p.12K, Figs.3, 4].
Female (from 68°41'N, 165°10'W; damaged): 3, urosome (dorsal); 4, P5.

Nota: Relative lengths of anal segment and caudal rami 9 : 15.
In P5, the distal segment was lost; the unguiform process of the proximal segment (endopodite 1) projects nearly horizontally inwards, abruptly narrowing to a distal acuminate portion which is ciliated on the inner edge.
Genital segment with lateral convexities separated by a constriction.

Species Eurytemora gracilis - Plate 2 of morphological figuresIssued from : M.S. Kos in Zoological Institut RAS, St. Petersburg, 2016, 179, [p.75, Fig. 37]. Eurytemora gracilis female and male (from the Kara Sea) ).

N Asia, N Canada, Alaska, Chukchi Sea, Kara Sea (gulf)
N: 9
(190) F: 1,52; (568) F: 1,4-1,2; M: 1,3-1,25; (572) F: 1,4; M: 1,25; (1220) F: 1,29-1,60; M: 1,25-1,40; {F: 1,20-1,60; M: 1,25-1,40}
Rem.: brackish.
Incomplete data.
After Heron & Damkaer (1976, Table 2) ratio anal somite/uropod (= caudal rami) 9/13; with metasomal wings.
Last update : 19/06/2023
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed June 25, 2024]

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Marine Planktonic Copepods

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