Xanthocalanus fallax - Fiche d'espèce - Copépodes planctoniques marins

Xanthocalanus fallax Sars, 1919 (F,M)

Taxonomy

Ordre Calanoida

détails

Superfamille Clausocalanoidea

détails

Famille Phaennidae

détails

Genre Xanthocalanus

détails liste des espèces pour ce genre

Abréviations ou symboles

Synonymie

Xanthocalanus borealis : Sars, 1902 (1903) (part.,p.46, figs.F,M); 1921 (p.3); Farran, 1905 (part., p.38, figs.F); Wilson, 1932 a (p.70, figs.F,M)

Références

Liste des auteurs étudiés

Sars, 1919 (1921) (p.3, 4, Rem.); 1925 (p.128, Descr.F, figs.F); Rose, 1933 a (p.130, figs.F); Sewell, 1948 (p.501); Matthews, 1964 (p.29, figs.F,M, juv.); Bradford & al., 1983 (p.60, 71); Markhaseva & Schnack-Schiel, 2003 (p.112, Rem.); Bradford-Grieve, 2004 b (p.635, figs.F, tab.1); Vives & Shmeleva, 2007 (p.699, figs.F,M, Rem.)

Figures

Planche 1 issued from : J.M. Bradford in N.Z. Jl Mar. Freshw. Res., 2004, 38 (4). [p.636, Fig.10].
Female (from Raunefjord, Norway): A, urosome (dorsal); B, idem (lateral right side); C, caudal ramus (ventral); D, Mx1: coxal endites 1, 2; basal endites and endopod; E, endopod of Mx2; F, praecoxal endite 1 of Mx2; G, coxal endite of Mx2; H, basal endite of Mx2; i, syncoxa of Mxp.

Nota: Head and 1st thoracic segment with very faint fusion-line (evident dorsally), 4th and 5th fused (fusion line visible only only dorsally). Surfaces urosomal segments (not including anal segment) sparsely covered in very small semicircular thickenings (that probably represent place of attachment of large scales (evident in some individuals). A1 extending to posterior border of genital segment.

Species Xanthocalanus fallax - Planche 2 of morphological figures

Planche 2 issued from : J.M. Bradford in N.Z. Jl Mar. Freshw. Res., 2004, 38 (4). [p.637, Fig.11].
Female: A, endopod of P2; B, endopod of P3; C, endopod of P4; D, exopodal segment 2 and 3 of P4; E, P5 (posterior view); F, P5 coxa another posterior view.

Species Xanthocalanus fallax - Planche 3 of morphological figures

Planche 3 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XXXV, figs.5-7].
Female: 5, habitus (dorsal); 6, idem (lateral left side); 7, P5.

Species Xanthocalanus fallax - Planche 4 of morphological figures

Planche 4 issued from : Sars G.O. in An Account of the Crustacea of Norway, with short descriptions and figures of all species. Vol. IV. Copepoda Calanoida. Publ. by The Bergen Museum. 1903. [Pl. XXXI]. As Xanthocalanus borealis.
Female & Male.

Species Xanthocalanus fallax - Planche 5 of morphological figures

Planche 5 issued from : Sars G.O. in An Account of the Crustacea of Norway, with short descriptions and figures of all species. Vol. IV. Copepoda Calanoida. Publ. by The Bergen Museum. 1903. [Pl. XXXII]. As Xanthocalanus borealis.
Female.
M = Md; m = Mx1; mp1 = Mx2; mp2 = Mxp.

Références complémentaires

Liste des auteurs étudiés

Jespersen, 1939 (p.58, Rem.); Matthews, 1967 (p.159, Table 1, Rem.); Kovalev & Shmeleva, 1982 (p.83); Holmes, 2001 (p.56)

Distribution

NZ: 5

Carte de distribution de Xanthocalanus fallax par zones géographiques

Distribution map of Xanthocalanus fallax for the Zone Mediterranean Sea, Black Sea

Localisations

Glossaire géographique

Woods Hole, Azores, SE Greenland (rare), W Ireland, W Norway, Bergen: Raunefjord (all the year), North Sea, W Medit. (off Monaco in Sars, 1925)

Citations

N: 10

Dimensions (mm)

Références de auteurs concernant les dimensions

(1) F: 2,9; (45) F: 4-3; M: 3-2; (58) F: 3,5; (65) F: 3,5; M: 2,5; (897) F: 3,1-3,3; (1129) F: 2,89; {F: 2,89-4,00; M: 2,00-3,00}

Remarques

depths: 120-625 m.
Certains auteurs ne reconnaissent pas l'identité du mâle à cette espèce.
Cette espèce peut être confondue avec X. borealis.

Voir aussi les remarques en anglais

Dernière mise à jour : 08/04/2021