Nouvelle version du site ! L'interface vient d'être modernisée — donnez-nous votre avis par mail ou notez-la : ★★★★★ ★★★★★
Copépodes planctoniques marins
Aetideopsis retusa  Grice & Hulsemann, 1967   (F,M)
Taxonomy
Ordre Calanoida
Superfamille Clausocalanoidea
Famille Aetideidae

Références

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)

Figures

Planche 1 issued 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.
Planche 2 issued 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
Planche 3 issued 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.
Planche 4 Issued 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).
Planche 5 Aetideopsis 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.
Planche 6 Aetideopsis 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.

Références complémentaires

C.-Y. Lee & al., 2009 (p.151, Tab.2)

Distribution

Cartes et graphiques additionels

Carte 4 Chart of 1996

Localisations

NW Sargasso Sea (in Wheeler, 1970), SW Indian, NW Taiwan, Kuril-Kamchatka & Aleutian Trenchs.

Type locality: 10°07'S, 64°27'E.

Citations

N: 5

Dimensions (mm)

(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}

Remarques

bathy & abyssopélagique.
Dernière mise à jour : 07/01/2020