Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Pseudochirella ( Genus )
Pseudochirella formosa  Markhaseva, 1989   (F)
Markhaseva, 1989 (p.33, Descr.F, figs.F); 1996 (p.264, figs.F); Park & Ferrari, 2009 (p.143, Table 3, Appendix 1, biogeography from Southern Ocean)
Species Pseudochirella formosa - Plate 1 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.267, Fig.212].
Female (62°54'S, 118°52'E). Ce: forehead (lateral); P.md: mandibular palp; Gntb Md: gnathobase of Md (partial).

Nota: Cephalothorax 3.6 times longer than urosome.
Posterior corners of last thoracic segment symmetrical, prolonged into triangular lobes, reaching nearly the midlength of genital segment (lateral and dorsal view).
Genital segment symmetrical, with moderate projections (dorsal view) in the midlength of segment; ventral swelling significantly prominent.
Urosomal segments 1-3 with hairs.
A1 as long as body.
Exopodite of P1 3-segmented.
Endopodite of P2 incompletely 2-segmented.
Coxopodite of P4 with 18-20 spines.

Species Pseudochirella formosa - 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.6].
Female: Thoracic segment 5 and genital segment.
Nota from the key:
1 - Genital segment symmetrical.
2 - Thoracic posterior corners segment 5 symmetrical.
3 - Exopodite 2 of A2 with 1 seta.
4 - Thoracic posterior corners segment 5 without spines.
5 - Thoracic posterior corners protruded into triangular lobes.
6 - Body length > 8 mm.
7 - Genital segment with well developed ventral rectangular protuberance. Coxopodite of P4 with 18-20 spines.

Compl. Ref.:
Razouls & al., 2000 (p.343, tab. 2, Appendix)
NZ: 1

Distribution map of Pseudochirella formosa by geographical zones
Species Pseudochirella formosa - Distribution map 3Issued from : E.L. Markhaseva in Issled. Fauny Morei, 1989, 41 (49). [p.60, Fig.19].
Geographical distribution of P. tanakai.
1: present occurrence.
Antarct. ( E Indian).

Type locality: 62°54'S, 118°52'E
N: 3
(37) F: 9,2; {F: 9,20}
Rem.: Sampling depth (Antarct.) : 0-3700 m.
Last update : 30/01/2015
    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., 2005-2024. - 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]

© copyright 2005-2024 Sorbonne University, CNRS

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


Version française
English version



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