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) ; C.B. Wilson, 1950 (p.221, figs.M, part. figs.F); Brodsky, 1950 (1967) (p.176, figs.F); Vervoort, 1952 f (n°47, p.3, fig.F, Rem.); Tanaka & Omori, 1969 (p.43, figs.F,M); Kos, 1972 (Vol.I, figs.F,M, Rem.); Vaupel Klein, 1972 (p.504, fig.F); 1984 a (p.38, 39, figs.F, Table II: characters, 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]. Doubtful after Kos, 1972.
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.

Nota from Markhaseva (1996, p.154): Cephalothorax nearly 4 times longer than urosome. Crest significantly lower than in female, rostrum slightly larger. Oral parts and P1-P4 close to that in E. bitumida.


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.


Species Euchirella galeatea - Plate 12 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.157, Fig.119].
Female (from 12°12'S, 62°53'E).


Species Euchirella galeatea - Plate 13 of morphological figuresEuchirella galeata female: 1 - Genital segment asymmetrical.
2 - Crest present.
3 - Coxopodite of P4 with 1 spine.
4 - Posterior corners of last thoracic segment symmetrical, roubed-rectangular (dorsal and lateral view).Endopodal segment 2 of A2 with 6 setae on each lobe.
5 - Crest high.
6 - Genital segment with only 1 projection on the left side (dorsal view), occupying all length of the segment. Exopodal segment 1 of A2 without projection.


Species Euchirella galeatea - Plate 14 of morphological figuresIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II ].
Euchirella galeata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Species Euchirella galeatea - Plate 15 of morphological figuresIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.94, Table II (cont' d) ].
Euchirella galeata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Species Euchirella galeatea - Plate 16 of morphological figuresIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.95, Table II (cont' d) ].
Euchirella galeata Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).

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); Homma & al., 2011 (p.29, Table 3, abundance, feeding pattern: suspension feeders); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.)
NZ: 9

Distribution map of Euchirella galeatea by geographical zones
Loc:
S Atlant. (off Tristan da Cunha, off St. Helena Is.) (in Wolfenden, 1911), Laccadive Is., off Sri Lanka (E & SW), Indian, Bay of Bengal, Andaman Sea, Indonesia-Malaysia, Flores Sea, Philippines, China Seas (East China Sea, South China Sea), Taiwan (SW), Japan (Izu, NE), S Aleutian Is., Pacif. (W equatorial), Pacif. (tropical), California, off Galapagos, N Chile.

Type locality: Pacific (eastern part).
N: 29
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; (1257) F: 5,85-6,0; {F: 5,20-6,70; M: 4,70-5,33}

The mean female size is 5.869 mm (n = 11; SD = 0.6116) and the mean male size is 5.062 mm (n = 5; SD = 0.3321). The size ratio (male : female) is 0.86.
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 : 22/02/2021
    to add your remark
  

 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed February 24, 2021]

© copyright 2005-2021 Sorbonne University, CNRS

Webmaster
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Search

On the WEB of CNRS

 


Marine Planktonic Copepods

Marine Planktonic Copepods

 

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