Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Aetideidae ( Famille )
            Chiridius ( Genre )
Chiridius polaris  Wolfenden, 1911   (F,M)
Syn.: ? Chiridius gracilis : A. Scott, 1909 (p.42, figs.F); ? Tanaka, 1937 (p.255, figs.F);
? Chiridius obtusifrons : A. Scott, 1909 (p.43, figs.F);
Chiridius subantarcticus Park, 1978 (p.125, figs.F)
Ref.:
Wolfenden, 1911 (p.211, Descr.F, figs.F); Farran, 1929 (p.208, 229, Rem.F); Sewell, 1948 (p.574); Brodsky, 1950 (1967) (p.152, figs.F); Vervoort, 1957 (p.6, 53, figs.F, Rem.); Park, 1978 (p.124, Rem.); Gardner & Szabo, 1982 (p.214, figs.F,M); Markhaseva, 1996 (p.119, Descr.M, figs.F,M, Rem.); Bradford-Grieve & al., 1999 (p.879, 920, figs.F,M)
Espèce Chiridius polaris - Planche 1 de figures morphologiquesissued from : T. Park in Antarctic Res. Ser. Washington, 1978, 27. [p.126, Fig.14]. As Chiridius subantarcticus
Female: A, habitus (dorsal view); B, idem (left lateral side); C, posterior part of metasome and urosome (dorsal view); D, idem (left lateral side); E, Mx1; F, P1; G, P2; H, P3; I, P4. Legs 1-4: anterior view.


Espèce Chiridius polaris - Planche 2 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.124, Fig.94].
Female (from different localities). Ce: forehead (lateral); Gngenital field (ventral)..


Espèce Chiridius polaris - Planche 3 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.125, Fig.95].
Female (from different specimens). Re: exopod; P.md: mandibular palpGntbMd: gnathobase of Md (partial).


Espèce Chiridius polaris - Planche 4 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.126, Fig.96].
Female: distal part of metasome and urosome (left side, right side and dorsal, respectively from different specimens from different localities).


Espèce Chiridius polaris - Planche 5 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.127, Fig.97].
Male (from different localities). P.md: mandibular palp.


Espèce Chiridius polaris - Planche 6 de figures morphologiquesIssued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.153, Fig.66].
Female (from NW Pacif.): habitus (dorsal and lateral right side); S1, P1; S2, P2.
Nota: Abdomen 1/3 length of cephalothorax. Abdominal segments 1 to 3 with denticulate posterior margins. 2nd basipodal segment of P1 with small spinule on outer distal margin.


Espèce Chiridius polaris - Planche 7 de figures morphologiquesissued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate XLIV, Figs.1-3]. As Chiridius ? obtusifrons. With doubt in C. polaris.
Female (from Molucca Passage): 1, habitus (dorsal); 2, forehead (lateral); 3, last thoracic and genital segments (left side).


Espèce Chiridius polaris - Planche 8 de figures morphologiquesissued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.31].
Female (from 66°05'S, 73°50'E): a-b, habitus (lateral and dorsal, respectively); c, forehead (lateral).


Espèce Chiridius polaris - Planche 9 de figures morphologiquesissued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.32].
Female: a, d, posterior part cephalothorax and urosome (lateral and dorsal, respectively); b, right A2; c, right Md (mandibular palp)


Espèce Chiridius polaris - Planche 10 de figures morphologiquesissued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.33].
Female: a, right P1 (anterior); b, left P2; c, left P3; c', detail of spinules along outer edge of terminal spine; d, left P4; e, right Mx2.


Espèce Chiridius polaris - Planche 11 de figures morphologiquesissued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.34].
Female: a-b, right A1; c, Md (cutting edge); d, right Mx1; e, right Mxp.


Espèce Chiridius polaris - Planche 12 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.211, Fig.6].
Female (from Antarctic): a-b, habitus (lateral and dorsal, respectively).


Espèce Chiridius polaris - Planche 13 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXIV, Figs.9-12].
Female: 9, Mxp; 10, P1; 11, P2; 12, P4.


Espèce Chiridius polaris - Planche 14 de figures morphologiquesChiridius polaris female:
1 - Exopod of Mx1 with 10 setae. Points of last thoracic segment reaching to the end of first third of genital segment.
2 - Endopodal segment 2 of Md wuith 8 (7 terminal and 1 posterior) setae.
3 - Points of last thoracic segment reaching the end of first third of genital segment (sometimes reaching or exceeding its midlength). Exopodal segment 3 of P1 with external spine 1.04-1.26 longer than external spine of segment 2.


Espèce Chiridius polaris - Planche 15 de figures morphologiquesChiridius polaris male:
1 - Points of last thoracic segment not longer than genital segment.
2 - Right P5 longer than left. Exopodal segments 1 and 2 of P1 with external spines reaching more longer than midlength of the next segment.
3 - Points of last thoracic segment reaching the posterior border of genital segment. Endopodal segment 1 of Mxp with 3 medial setae.
4 - Endopodal segment 1 of P1 with external spine reaching and exceeding the base of following spine.

Ref. compl.:
Gowing & Wishner, 1986 (p.939, tab.3, gut contents); Zmijewska, 1987 (tab.2a); Hattori, 1991 (tab.1, Appendix); Razouls & al., 2000 (p.343, tab. 4, 5, Appendix); Park, W & al., 2004 (p.464, tab.1); Schnack-Schiel & al., 2008 (p.1045: Tab.2); Park & Ferrari, 2009 (p.143, Table 4, 6: bipolar distribution, Appendix 1, biogeography from Southern Ocean)
NZ: 5 + 2 douteuses

Carte de distribution de Chiridius polaris par zones géographiques
Espèce Chiridius polaris - Carte de distribution 3issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Reports - Ser. B, Vol. III, 1957 [Fig.132]
Chart showing the geographical distribution (white triangle) in the seas surrounding the Antarctic continent.
Nota: In this chart the area frequented by whaling vessels has been hatched. The Antarctic circle (66°.5 S) has been drawn as a broken line. The numbers I to VI refer to the sectors into which the Antarctic seas are divided according to Mackintosh (1942) (after Vervoort, 1951).
Loc:
Antarct. (Peninsula, W Weddell Sea, S Atlant., Indian, SW & SE Pacif.), sub-Antarct. (SE Pacif.), ? Indonesia-Malaysia, ? Japan, off Sanriku, Kuril-Kamtchatka Trench, British Columbia, off California (Santa Catalina Basin).

Type locality: Antarctic (South of 60° in the Indian sector)
N: 14
Lg.:
(5) F: 2,6; (10) F: 2,75; (20) F: 3,44; 3,36; (22) F: 3,5; (25) F: 4,3; (35) F: 4,14; (37) F: 4,25-3,3; M: 3,8-3,55; {F: 2,60-4,25; M: 3,55-3,80}
Rem.: méso à abyssopélagique.
Sampling depth (Antarct., sub-Antarct.) : 0-1000 m.
Il apparaît quelques désaccords sur les synonymies entre Brodsky (1950) et les auteurs ultérieurs.
Voir aussi les remarques en anglais
Dernière mise à jour : 21/01/2016

 Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :

Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2020. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 01 décembre 2020]

© copyright 2005-2020 Sorbonne Université, CNRS

Webmaster
Mentions légales et informations nominatives
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Rechercher

Sur le WEB du CNRS

 


Copépodes planctoniques marins

Copépodes planctoniques marins

 

Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins