Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Pseudochirella ( Genus )
Pseudochirella spinosa  (Wolfenden, 1905)   (F)
Syn.: Euchirella spinosa Wolfenden, 1905 a (p.19, Descr.F, figs.F); 1911 (p.235, figs.F); Hardy & Gunther, 1935 (1936) (p.160, Rem.); Sewell, 1948 (p.500, 569)
Sewell, 1948 (p.523); Bradford & Jillett, 1980 (p.67); Markhaseva, 1989 (p.38); 1996 (p.290, figs.F); Bradford-Grieve & al., 1999 (p.880, 923, figs.F)
Species Pseudochirella spinosa - Plate 1 of morphological figuresissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXVII, Figs.3-7]. As Euchirella gracilis.
Female: 3, last thoracic segment and urosome (lateral); 4, idem (dorsal); 5, A2; 6, P2; 7, P4.

Nota: Complement after Markhaseva (1996, p.290): Cephalothorax 4 times longer than urosome.
Posterior corners of last thoracic segment prolonged into straight spines reaching about the midlength of genital segment (dorsal view).
A1 shorter than body.
Endopodal segment 1 of A2 with 1 seta; exopodal segment 2 of A2 without medial seta.
Exopodite of P1 3-segmented.
Endopodite of P2 2-segmented.
Coxopodite of P4 with 13 spines.

Species Pseudochirella spinosa - Plate 2 of morphological figuresIssued from : E.L. Markhaseva in USSR Acad. Sci., Zool. Inst., Explor. Fauna Seas. Marine Plankton, 1989, 41 (49). [p.52, Fig.3].
Female: Thoracic segment 5 and genital segment.
Nota from the key:
1 - Genital segment symmetrical.
2 - Thoracic posterior corners symmetrical.
3 - Exopoddite 2 of A2 with 1 seta.
4 - Corners of thoracic segment 5 with points extending ± the midlength of genital segment.

Compl. Ref.:
Razouls & al., 2000 (p.343, Appendix)
NZ: 3

Distribution map of Pseudochirella spinosa by geographical zones
Sub-Antarct. (SW Atlant. in Hardy & Gunther, 1935, p.160: exceptional: 53°.5S, 49°W), off SW Ascension Is., Atlant. (equatorial): off E St. Paul Is., off W Cape Verde Is.

Type locality: 28°S, 20°W and 18°N, 30°W
N: 3
(10) F: 6,2; {F: 6,20}
Rem.: Sampling depth (Antarct.) : 750-1000 m.
Last update : 30/01/2015
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 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., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed May 25, 2024]

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Marine Planktonic Copepods

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