Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Arietelloidea ( Superfamille )
        Augaptilidae ( Famille )
            Euaugaptilus ( Genre )
Euaugaptilus antarcticus  (Wolfenden, 1911)   (F,M)
Syn.: Augaptilus antarcticus Wolfenden, 1911 (p.334, figs.F,M); Sewell, 1948 (p.575);
no Euaugaptilus laticeps : Farran, 1929 (p.269); Vervoort, 1957 (p.139); Tanaka & Omori, 1987 (p.252)
Ref.:
Matthews, 1972 (p.28, 33: Rem., 60); Boxshall, 1985 (p.306, Rem.); Park, 1993 (p.32, figs.F,M, Rem.); Bradford-Grieve & al., 1999 (p.882, 939, fig.F); Bradford-Grieve, 1999 b ( p.48, figs.F,M, Rem.: p.54, figs.171, 190)
Espèce Euaugaptilus antarcticus - Planche 1 de figures morphologiquesissued from : T. Park in Biology of the Antarctic Seas, XXII. Antarct. Res. Ser., Washington, 58. [p.33, Fig.23].
Female: a-b, habitus (lateral and dorsal, respectively); c, forehead (ventral); d-e, urosome (dorsal and lateral, respectively); f, A2; g, Md; h, Md (biting edge).
Nota: Prosome about 2.8 times as long as wide. Forehead broadly round when viewed dorsally or laterally. Rostrum consisting of 2 filaments of medium size. Urosome about 25 % lengt of prosome. Genital segment (dorsally) about as long as wide, widest close to proximal end, about 38 % length of urosome.measured along lateral side, 3rd urosomam segment about 1.6 times length of 2nd, and about 82 % length of caudal ramus. A1 extending beyond distal end of caudal ramus by last 5 or 6 segments. A2: oxa and basis with 1 and 2 well-developed setae, respectively.1st endopodal segment with 1 seta and about 90 % length of basis; 2nd endopodal segment about 71 % length of 1st, with 8 and 6 setae on inner and outer lobe, respectively; exopod about 94 % length 1st endopodal segment; first 7 segments without setae; 8th segment with 4 terminal setae. Mandibular blade with 3 pairs of teeth in addition to 1 relatively small proximal tooth, basal spine absent; palp about 77 % length of blade; endopod extending beyond distal end of exopod by 1/5 its length, with 6 terminal setae; exopod with 4 setae.


Espèce Euaugaptilus antarcticus - Planche 2 de figures morphologiquesissued from : T. Park in Biology of the Antarctic Seas, XXII. Antarct. Res. Ser., Washington, 58. [p.34, Fig.24].
Female: a, Mx1; b, Mx2; c, Mxp; d-h, P1 to P5 (anterior views).
Nota: Mx1 with 10 spines on 1st, 1 spiniform seta on 2nd, and 2 setae on 3rd inner lobe; 3 setae on basis; 6 setae on exopod, and 6 setae on outer lobe, 2nd seta from proximal end smallest; endopod absent. Mx2: 6 protopodal lobes with 3, 2, 2, 3, 2, 3 setae (from proximal to distal); endopod with 7 setae. Mxp: basis with 2 pairs of setae; endopod 5-segmented with 4, 4, 3, 3, 4 setae (from proximal to distal). Swimming legs similar to those of E. laticeps except: P1 exopod with 1st outer spine reaching distal end of 2nd, 2 outer spines of 3rd segment very close to each other. P2 exopod with terminal spine of 3rd segment about 94 % length of segment itself. P3 and P4 exopods each with 3 sensory pores, one each at base of 2nd, 3rd, and 5th outer spine; terminal spine of 3rd exopodal segment about 60 % lenth of segment in both legs. P5 with outer seta of basis reaching about distal end of 2nd exopodal segment; exopod with 2 sensory pores, 1 each at base of 2nd and 4th outer spine; terminal spine of 3rd segment about 80 % length of segment itself.


Espèce Euaugaptilus antarcticus - Planche 3 de figures morphologiquesissued from : T. Park in Biology of the Antarctic Seas, XXII. Antarct. Res. Ser., Washington, 58. [p.35, Fig.25].
Male: a, habitus (lateral); b, urosome (dorsal); c, A2; d, P5 (posterior).
Nota: Urosome about 28 % length of prosome, and its 5 segments and caudal ramus with length of ratios of 17.9:15.8:11.6:10.5: 15.8:28.4 = 100 (measured along lateral side). Cephalic appendages and first 4 pairs of swimming legs as in female except for some minor differences in proportional lengths of component parts


Espèce Euaugaptilus antarcticus - Planche 4 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.335, Fig.70]. As Augaptilus antarcticus.
Female: a, A2; b, Mx1; c, Mxp; d, Md (mandibular palp).

Male: e, right P5; f, left P5 (segments 2-3 endopodite).
Nota: Right P5 with 2nd and 3rd segments of expoppod not completely separatd. Left P5 with a short outgrowth on the inner margin of 2nd segment.


Espèce Euaugaptilus antarcticus - Planche 5 de figures morphologiquesissued from : J.M. Bradford-Grieve, E.L. Markhaseva & C.E.F. Rocha & B. Abiahy in South Atlantic Zooplankton, Edit. D. Boltovskoy. 1999, Vol.2. Copepoda. [p.1036, Fig. 7.243].
Female: Mx1 (schematic diagram). Li = inner lobe; Le = outer lobe; End = endopodite.
Nota: Exp of Mx1 with 6 setae. Cephalothorx in dorsal view with obvious indentation posterior to A2. Md palp almost as long as gnathobase; gnathobade expanded distally.

Ref. compl.:
Schnack-Schiel & al., 2008 (p.1045: Tab.2); Park Ferrari, 2009 (p.143, Table 3, 7: common deepwater species, Appendix 1, biogeography); Kouwenberg & al., 2014 (p.290, biogeography, Map 1)
NZ: 1

Carte de distribution de Euaugaptilus antarcticus par zones géographiques
Espèce Euaugaptilus antarcticus - Carte de distribution 3Issued from : J.H.M. Kouwenberg, C. Razouls & N. Desreumaux in Biogeographic Atlas of the Southern Ocean, Scient. Comm. Antarct. Res., Cambridge, 2014, 6.6. [p.291, Map 1].
Distribution of Euaugaptilus antarcticus.
Loc:
Antarct. (W Weddell Sea, South of the Antarctic Convergence: Atlant., Indian, Pacif.)
N: 6
Lg.:
(10) F: 8,55; M: 9,5; (25) F: 10,13-8,6; M: 9,69; (35) F: 10-9,4; M: 8,3; (48) F: 10,33-9,16; M: 9,83-9,16; {F: 8,55-10,33; M: 9,16-9,83}
Rem.: méso-bathypélagique. Pour Matthews (1972, p.33) la forme décrite par Wolfenden (1911) est synonyme de E. laticeps Sars, 1905.
Park (1993, p.37) n'admet pas la synonymie avec Euaugaptilus laticeps inE. placitus. Cf. Euaugaptilus placitus (règle d'antériorité). Cependant, Bradford-Grieve (1999 b, p.48, 54) ne suit pas l'opinion de Park.
Voir aussi les remarques en anglais
Dernière mise à jour : 22/01/2016

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 02 décembre 2021]

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