Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Aetideidae ( Famille )
            Aetideopsis ( Genre )
Aetideopsis retusa  Grice & Hulsemann, 1967   (F,M)
Ref.:
Grice & Hulsemann, 1967 (p.22, Descr.F, figs.F); Wheeler, 1970 (p.10, fig.F); Bradford & Jillett, 1980 (p.19); Markhaseva, 1996 (p.37, Descr.M, figs.F,M)
Espèce Aetideopsis retusa - Planche 1 de figures morphologiquesissued from : E.L. Markhaseva in Trudy Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.40, Fig.24].
Female; From different specimens; Gn: genital segment; RiP1: endopodite of first leg.
Ce, Th5 & Abd: from 44°25'N, 149°10'E; Gn: from 44°20'N, 150°33'E; other figures: from 45°43'N, 153°20'E.


Espèce Aetideopsis retusa - Planche 2 de figures morphologiquesissued from : E.L. Markhaseva in Trudy Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.41, Fig.25].
Female (from 45°43'N, 153°20'E) & Male (from 43°52'N, 149°49'E).
R: rostrum (anterior); P.md: mandibular palp


Espèce Aetideopsis retusa - Planche 3 de figures morphologiquesissued from : G.D. Grice & K. Huisemann in Proc. U.S. natn. Mus., 1967, 122 (3583). [p.49, Figs.39-45].
Female (from Indian Ocean): 39, habitus (dorsal); 40, idem (lateral right side); 41, A2; 42, Mx2; 43, Mxp; 44, P1; 45, P2 (terminal spine on exopod broken off).

Nota: Head and 1st thoracic segment incompletely separate, 4th and 5th separate.Rostrum distinct, rami separated by deep invagination. Frontal organ prominent and visible in dorsal view. A1 exceeds furca by last 2 segments.


Espèce Aetideopsis retusa - Planche 4 de figures morphologiquesIssued from : E.H. Wheeler, Jr in Smiths. Contr. Zool., 1970, 55. [p.20, Figs.29-30].
Female (from 37°12'N, 69°39W): 29, habitus (dorsal); 30, forehead (ventral view).


Espèce Aetideopsis retusa - Planche 5 de figures morphologiquesAetideopsis retusa female:
1 - Endopod of P1 with external lobe.
2 - Posterior corners of last thoracic segment not wing-like, not divergent (dorsal view). Genital segment (dorsal view) barrel-like without lateral swellings.
3 - Crest absent. 1st and 2nd external spines of exopod segments 1 and 2 of P1 exceeding base of next spine.
4 - Endopod of P2 2-segmented (though separartion between segments may be incomplete). Points of last thioracic segment reaching the midlength of geniral segment (or exceeding it).
5 - Anterior part of cephalon (lateral view) fairly smoothly transforming into rostrum, not prominent over base of rostrum.
6 -Rostrum well developed, rami not close-spaced slightly divergent.
7 -Proximal part of Mxp protopodite (externally) with well visible projection.
8 - Endopodal segment 2 of Md with 9 (8 terminal and 1 posterior) setae. A1 as long as or longer than body. Body length < 3.0 mm.


Espèce Aetideopsis retusa - Planche 6 de figures morphologiquesAetideopsis retusa male:
1 - Points of last thoracic segment exceeding posterior border of urosomal segment 1.
2 - Endopod of P1 with external lobe.
3 - Rostral rami spaced closely, slightly divergent.
4 - Genital segment no more than half shorter than urosomal segment 2. Body length < 3.0 mm.

Ref. compl.:
C.-Y. Lee & al., 2009 (p.151, Tab.2)
NZ: 5

Carte de distribution de Aetideopsis retusa par zones géographiques
Espèce Aetideopsis retusa - Carte de distribution 2
Carte de 1996
Loc:
NW Sargasso Sea (in Wheeler, 1970), SW Indian, NW Taiwan, Kuril-Kamchatka & Aleutian Trenchs.

Type locality: 10°07'S, 64°27'E.
N: 5
Lg.:
(37) F: 2,8-1,96; M: 2,7-2,25; (67) F: 1,96; (203) F: 2,25; {F: 1,96-2,80; M: 2,25-2,70}
Rem.: bathy & abyssopélagique.
Dernière mise à jour : 07/01/2020

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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2020. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 27 septembre 2020]

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