Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Euchirella ( Genus )
Euchirella galeatea  Giesbrecht, 1888   (F,M)
Syn.: no Euchirella galeata : Farran, 1908 b (p.37); 1920 (p.17, 21); Lysholm & Nordgaard, 1921 (p.16); Lysholm & al., 1945 (p.18, Rem.); Sewell, 1947 (p.74, figs.F)
Ref.:
Giesbrecht, 1892 (part., p.233, 244, Pl.36, fig.26, non Pl.36: fig.22); Giesbrecht & Schmeil, 1898 (p.36); Esterly, 1905 (p.155, figs.F); A. Scott, 1909 (p.55, Rem.); Wolfenden, 1911 (p.241); Farran, 1926 (p.253: Rem.); Sewell, 1929 (p.110, figs.F, juv.M, Rem.); Vervoort, 1949 (p.32, figs.F); Brodsky, 1950 (1967) (p.176, figs.F); C.B. Wilson, 1950 (p.221, figs.M, part. figs.F); Vervoort, 1952 f (n°47, p.3, fig.F, Rem.); Tanaka & Omori, 1969 (p.43, figs.F,M); Vaupel Klein, 1972 (p.504, fig.F); 1984 a (p.38, 39, figs.F, Rem.); He & al., 1992 (p.250); Markhaseva, 1996 (p.154, figs.F,M); Chihara & Murano, 1997 (p.685, Pl.35,39: F,M); Mulyadi, 2001 (p.815, figs.F, Rem.); Mulyadi, 2004 (p.45, figs.F, Rem.);
Species Euchirella galeatea - Plate 1 of morphological figuresIssued from : W. Vervoort in Zool. Verh., Leiden, 1949, 5. [p.33, Fig.16].
Female (Indo-Malaysian Seas): a, urosome (dorsal); b, forehead (lateral); c, distal part of thoracic segment and urosome (lateral left side).

Nota: A1 (24- free segments) reaches the distal margin of 3rd urosomal segment. The abdominal segments and furca in the proportional lengths 47:14:12:9:18 = 100.


Species Euchirella galeatea - Plate 2 of morphological figuresissued from : R.B.S. Sewell in Mem. Indian Mus., 1929, X. [p.111, Fig.41].
Female (from S India): a, posterior thoracic margin and urosome (dorsal); b, genital segment (lateral left side); c, Mx1; d, P1.


Species Euchirella galeatea - Plate 3 of morphological figuresissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.61, Fig.4, b].
Female: b, helmet-shaped crest on forehead (left lateral side).


Species Euchirella galeatea - Plate 4 of morphological figuresissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.63, Fig.5, j].
Female: j, setal armature of basipodite 2 of A2 (note: one short seta only).
Scale bar 0.2 mm.


Species Euchirella galeatea - Plate 5 of morphological figuresissued from : C.O. Esterly in Univ. Calif. Publs Zool., 1905, 2 (4). [p.156, Fig.22].
Female (from San Diego Region): a, habitus (lateral), with spermatophores; b, basipodite 1 of P4.
Nota: Head with high crest and rostrum. Genital segment asymmetrical, strongly protruding on the posterior portion of the dorsal surface.
Nota: The basipodite 1 of P4 about as in E. pulchra, the spines not reaching to the distal border of the segment.


Species Euchirella galeatea - Plate 6 of morphological figuresissued from : O. Tanaka & M. Omori in Publ. Seto mar. Biol. Lab., 1969, XVII, 1. [p.44, Fig.4].
Female (from Pacific): a, forehead (lateral); b, urosome (dorsal); c, last thoracic segment and urosome (left lateral).

Male: d, forehead (lateral); e, Mx1; f, Mxp (distal part of 1st basal segment); g, P1; h, left P5 (distal segment of exopod); i, idem (another view); j-k, idem (from different specimens.


Species Euchirella galeatea - Plate 7 of morphological figuresissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.80, Fig.16, z].
Female: z, arrangement of medial spines on the posterior face of basal segment 1 of leftt P4 .
Scale bar 0.1 mm.
Nota: 1 single spine, of moderate size.


Species Euchirella galeatea - Plate 8 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf.36, Fig.26].
Female: 26, forehead (lateral).


Species Euchirella galeatea - Plate 9 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf.15, Fig.18]. With doubt ( perhaps Euchirella grandicornis).
Female: 18, basal segments of P4 (posterior view).


Species Euchirella galeatea - Plate 10 of morphological figuresIssued from : J.C. von Vaupel-Klein in Zool. Meded., Leiden, 19972, 47 (41). [p.507, Fig.3, c].
Female (from 8°34'N, 119°55'E): c, endopodite of right P1 (anterior view).

Nota: 'organ of Vaupel Klein' (see explanation to Euchirella curticauda).


Species Euchirella galeatea - Plate 11 of morphological figuresissued from : Mulyadi in Publ. by Res. Center Biol., Indonesia Inst. Sc. Bogor, 2004. [Fig.23]
Female (from 07°29'S, 121°05'E): a, habitus (dorsal); b, forehead (lateral); c, last thoracic segment and urosome with spermatophore (left lateral side); d, P4.

Compl. Ref.:
Sciacchitano, 1930 (p.13); Sewell, 1948 (p.329, 365, 520, 529, 531, 534, 539, 545, 556, 566); Chiba & al., 1957 a (p.11); Fagetti, 1962 (p.19); Grice & Hulsemann, 1967 (p.15); Fleminger, 1967 a (tabl.1); Lee & al., 1971 (p.1150); Björnberg, 1973 (p.324, 386); Guangshan & Honglin, 1984 (p.118, tab.); Rudyakov, 1986 (tab.1); Shih & Young, 1995 (p.67); Ikeda & al., 2006 (p.1791, Table 2); Dur & al., 2007 (p.197, Table IV); Fernandes, 2008 (p.465, Tabl.2)
NZ: 9

Distribution map of Euchirella galeatea by geographical zones
Loc:
Atlant. S (off Tristan da Cunha, off Ste Hélène) (in Wolfenden, 1911), Is. Laquedives, off Ceylan E & SW, Indien, G. du Bengale, Mer des Andaman, Indonesia-Malaysia, Flores Sea, Philippines, mers de Chine (East China Sea, South China Sea), Taiwan (SW), Japon (Izu, NE), Pacif. W (équatorial), Pacif. (tropical), Californie, off Galapagos, Chili N
N: 28
Lg.:
(37) F: 6,7-5,2; M: 5,33-4,7; (41) F: 5,9-5,2; (47) F: 6,4; (110) F: 6,7-5,5; M: 5,25-4,7; (137) F: 5,86; M: 5,33; (142) F: 6,5; (855) F: 5,3; (1122) F: 5,3; {F: 5,20-6,70; M: 4,70-5,33}
Rem.: epi-mesopelagic.
The female resembles that of E. bitumida, but is distinguishable from the latter.
The female can be confused with E. grandicornis (See remarks in Vaupel Klein, 1984a, p.39).
According to Vervoort (1949, p.34) the Indo-Malaysian specimens agree with Sewell's (1929) description, but differ from Giesbrecht's account of East-Pacific specimens by the shape of the urosome (perhaps a different species).
Last update : 03/04/2013
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