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Copépodes planctoniques marins
Cornucalanus chelifer  Thompson, 1903   (F,M)
Taxonomy
Ordre Calanoida
Superfamille Clausocalanoidea
Famille Phaennidae

Synonymie

Scolecithrix chelifer I.C. Thompson, 1903 a (p.21, Descr. juv.M, figs. juv.M); Farran, 1905 (p.36, figs.F); Pearson, 1906 (p.19);
Cornucalanus magnus Wolfenden, 1905 a (p.21); 1911 (p.281, figs.F,M); Hardy & Gunther, 1935 (1936) (p.163, Rem.);
Onchocalanus chelifer : van Breemen,1908 a (p.65);
? Cornucalanus chelifer : Sewell, 1929 (p.177, figs. Juv.M);

Références

Farran, 1908 b (p.49, Rem.); With, 1915 (p.222, figs.F,M); Lysholm & Nordgaard, 1921 (p.19); Sars, 1925 (p.151, figs.F); Rose, 1929 (p.26); Wilson, 1932 a (p.74, figs.F,M); Rose, 1933 a (p.138, figs.F, Rem.M); Jespersen, 1934 (p.84, fig.21); 1940 (p.35); Lysholm & al., 1945 (p.25); Vervoort, 1957 (p.90, 91, 92, Rem.); Tanaka, 1960 a (p.121, figs. juv.M); Paiva, 1963 (p.44, fig.M); Vervoort, 1965 (p.33, Rem.); Owre & Foyo, 1967 (p.58, figs.F,M); Park, 1983 a (p.352, figs.F,M, Rem.); Tanaka & Omori, 1992 (p.257, figs.F); Bradford & al., 1983 (p.61, figs.F,M); Chihara & Murano, 1997 (p.853, Pl.139: F); Bradford-Grieve & al., 1999 (p.880, 929, figs.F,M); G. Harding, 2004 (p.41, figs.F,M); Boxshall & Halsey, 2004 (p.159, fig.F); Vives & Shmeleva, 2007 (p.683, figs.F,M, Rem.)

Figures

Planche 1 issued from : J.M. Bradford, L. Haakonssen & J.B. Jillett in Mem. N.Z. Oceanogr. Inst., 1983, 90. [p.66, Fig.36].
Female: A, habitus (lateral right side); B, Mx2; C, Mxp;, D, P5.

Male: E, habitus (lateral right side); F, Mx2; G, P5.
Planche 2 issued from : T. Park in Antarct. Res. Ser. Washington, 1983, 39 (5). [p.357, Fig.25].
Male: a, habitus (dorsal); b, idem (lateral left side); c, last thoracic segments and urosome (lateral left side); d, forehead (lateral); e, Rostrum; f, A2; g, Md; h, Mx1.
Planche 3 issued from : T. Park in Antarct. Res. Ser. Washington, 1983, 39 (5). [p.358, Fig.26].
Male: a, Mx2; b, Mxp; c, basipod of P4 (anterior); d, proximal part of P5 (anterior); e, P5 (posterior).
Planche 4 issued from : T. Park in Antarct. Res. Ser. Washington, 1983, 39 (5). [p.355, Fig.23].
Female: a, habitus (dorsal); b, idem (lateral left side); c, last thoracic segments and urosome (lateral left side); d, forehead (lateral); e, A2; f, Md; g, Mx1; h, Mx2.
Planche 5 issued from : T. Park in Antarct. Res. Ser. Washington, 1983, 39 (5). [p.356, Fig.24].
Female: a, Mxp; b, distal part of Mxp; c, P1 (anterior); d, P2 (posterior); e, P3 (posterior); f, P4 (posterior); g, P5 (posterior).
Planche 6 issued from : O. Tanaka & M. Omori in Publs Seto Mar. Biol. Lab., 1992,35 (4/5). [p.257, Fig.2, a-c].
Female (from Izu region, Japan): a, forehead (lateral); b, last thoracic segment and urosome (lateral left side); c, P5.

Nota: P5 with a single terminal spine and patches of hairs.
Planche 7 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.WLII, figs.1-14].
Female: 1, habitus (dorsal); 2, idem (lateral left side); 2a, distal segments of A1; 3, forehead (lateral); 4, rostrum (frontal view); 5, A2; 6, Md; 7, Mx1; 8, Mx2; 9, Mxp; 10, P1; 11, P2; 12, P3; 13, P4; 14, P5.
Planche 8 issued from : G.P. Farran in Ann. Rep. Fish. Brch., Ireland, 1902-1903, II, App. 2, 1905. [Plate VII, Figs.18-19]. As Scolecithrix chelifer
Female (from W Ireland): 18, head (ventral); 18, Mx2.
Planche 9 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.282, Fig.45]. As Cornucalanus magnus.
Male: P5.
Planche 10 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXXII, Figs.1-10]. As Cornucalanus magnus.
Female: 1, habitus (dorsal); 2, Mx2; 3, Mxp; 4, P1; 5, P2; 6, P4; 7, forehead (lateral); 8, P5; 9, posterior part cephalothorax and urosome (lateral).

Male: 10, forehead (lateral).
Planche 11 issued from : G. Harding in Key to the adullt pelagic calanoid copepods found over the continental shelf of the Canadian Atlantic coast. Bedford Inst. Oceanogr., Dartmouth, Nova Scotia, 2004. [p.41].
Female & Male.

Female with a median frontal spine foreward (arrowed). Both Mx2 and Mxp have two stout claw-like setae (arrowed). P5 uniramous, small, 3-segmented.
Male: P5 uniramous, small, 4-segmented.
Planche 12 issued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [Pl. VIII, Fig. 15, a-c].
Female (from 61°30'N, 17°08'W): a, head (lateral); b, terminal setae of left P4; c, left P5.
Planche 13 issued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [Pl. VII, Fig. 4, e, d].
Female: e, labrum (oral view); d, serrula 6-dentata.
Planche 14 issued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [Pl. VII, Fig. 4, a-c].
Female: a, corner of last thoracic segment and urosome (lateral); b, left P4 (posterior view); c, right P5.
Planche 15 issued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [Pl. VIII, Fig. 15, d, e].
Male: d, forehead (lateral); e, P5 (anterior view).
Planche 16 issued from : C. With in The Danish Ingolf-Expedition, Copepoda I, 1915, III, 4. [Pl. VII, Fig. 15, f, g].
Male: f, urosome (lateral); g, left P5 (3rd outer segment).
Planche 17 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.58, Figs.365-369].
Female: 365, habitus (lateral); 366, rostrum.

Male: 367, P5.
Planche 18 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.24, Fig.101].
Male: Mx2.
Planche 19 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.58, Figs.370, 371].
Female: 371, P5.

Male: 370, Mx2.
Planche 20 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. [p.25, Fig.110].
Female: Mxp.
Planche 21 Issued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 1960, VIII (1). [p.121, Fig.98].
Immature Male Stage V (from Suruga Bay, Japan): a, forehead (lateral); b, lest thoracic segment and two first abdominal segments (lateral); c, Mx2; d, Mxp; e, P5.
Body size: 5.33 mm.

Nota: Sewell's immature specimen male taken from the Indian Ocean (measuring 5.4 mm) has no cephalic spine; the P5 legs is of about equal lengths. As a general rule, the immarure male has a general resemblance to the adult female. Sewell describes that the general form of the body closely resembles the figure of Cornucalanus magnus Wolfenden.

Références complémentaires

Sewell, 1948 (p.384, 501, 521, 526, 527); C.B. Wilson, 1950 (p.192); Grice, 1963 a (p.495); Grice & Hulsemann, 1967 (p.16); 1968 (tab.2); Shih & al., 1971 (p.43); Björnberg, 1973 (p.331, 385); Roe, 1972 (p.277, tabl.1, tabl.2); Deevey & Brooks, 1977 (p.256, tab.2, Station "S"); Vives, 1982 (p.291); Tremblay & Anderson, 1984 (p.5); Roe, 1984 (p.357); Razouls & al., 2000 (p.343, tab. 5, Appendix); Holmes, 2001 (p.55); Gaard & al., 2008 (p.59, Table 1, N Mid-Atlantic Ridge); Galbraith, 2009 (pers. comm.); Park & Ferrari, 2009 (p.143, Table 4, 7: common deep water species, Appendix 1, biogeography)

Distribution

Localisations

Antarct. (Peninsula, SW Atlant., Indian, SE Pacif.), South Georgia, sub-Antarct. (Indian, SW & SE Pacif.), South Africa, off E Tristan da Cunha, G. of Guinea (off Ghana), Cape Verde Is., off Mauritania, Canary Is., off E Madeira, off W Cape Finisterre, W Bay of Biscay, Azores, Florida, off Bermuda: Station "S" (32°10'N, 64°30'W), Sargasso Sea, Woods Hole, Nova Scotia, S Strait of Davis, Iceland, SW Faroe Is., W Ireland, Denmark Strait, Indian (off S Laccadive Is.), Indonesia-Malaysia, Philippines, Japan (Izu region), Kuril-Kamchatka, British Columbia (rare), New Zealand, off Juan Fernandez Is., Chile (N & S)

Citations

N: 37

Dimensions (mm)

(1) F: 8,4; (7) F: 8,7; M: 6,17; (9) F: 7,6; M: 6,3; (10) F: 8-7,8; (15) F: 8,25-7,41; M: 6,66-6,41; (16) M: 5,5; (25) M: 4,85; (45) F: 9-8; M: 7-6,5; (73) M: 5,84-5,82; (199) F: 7,2-6,23; (866) F: 6-8,3; M: 6-6,7; (867) F: 7,2-7,6; {F: 6,00-9,00; M: 4,85-7,00};
For G. Harding (2004, p.41) the total body length is about 8.4 mm (Female) and about 8 mm (Male).

Remarques

méso-bathypélagique.
Sampling depth (Antarct., sub-Antarct.) : 0-2000 m.
Espèce présentant une certaine variabilité.

Voir aussi les remarques en anglais
Dernière mise à jour : 10/05/2016