Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Pseudochirella ( Genus )
Pseudochirella mariana  Markhaseva, 1989   (F)
Markhaseva, 1989 (p.34, Descr.F, figs.F); 1996 (p.271, figs.F)
Species Pseudochirella mariana - Plate 1 of morphological figuresissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.273, Fig.218].
Female (11°13'N, 141°47'E). CP4: coxopod of fourth leg.

Nota: Cephalothorax 4.7 times longer than urosome.
Posterolateral corners of last thoracic segment prolonged into slightly asymmetrical, rounded lobes.
Genital segment abruptly asymmetrical with 2 projections on the right (dorsal view); genital field removed to the right side.
Exopodite of P1 3-segmented.
Endopodite of P2 2-segmented.
Coxopodite of P4 with about 23 spines.

Species Pseudochirella mariana - Plate 2 of morphological figuresIssued from : E.L. Markhaseva in USSR Acad. Sci., Zool. Inst., Explor. Fauna Seas. Marine Plankton, 1989, 41 (49).< [p.53, Fig.26].
Female: Thoracic segment 5 and genital segment.
Nota from the key:
1 - Genital segment strongly asymmetrical.
2 - Both left and right thoracic posterior corners without spines.
3 - Thoracic posterior corners with rounded lobes.
4 - Thoracic posterior corners slightly asymmetrical.
5 - Genital field removed to the right of genital segment (ventral view).
6 - Third internal lobe of Mx1 with 5 setae.
7 - Genital segment with 2 large protuberance only the right (dorsal view).
8 - Gnathobase of Mx1 posterior surface with 3 setae.

NZ: 1

Distribution map of Pseudochirella mariana by geographical zones
Species Pseudochirella mariana - Distribution map 2Issued from : E.L. Markhaseva in Issled. Fauny Morei, 1989, 41 (49). [p.59, Fig.18].
Geographical distribution of P. mariana, present occurrence.
NW Pacif. (Mariana Trench).

Type locality: 11°13'N, 141°47'E.
N: 2
(37) F: 3,6; {F: 3,60}
Rem.: Abyssopelagic. In vertical haul from 7470 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 19, 2024]

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Marine Planktonic Copepods

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