Species Card of Copepod
Calanoida ( Order )
    Arietelloidea ( Superfamily )
        Discoidae ( Family )
            Pertsovius ( Genus )
Pertsovius tridentatus   Andronov & Kosobokova, 2011   (F)
Andronov & Kosobokova, 2011 (p.40, figs.F)
Species Pertsovius tridentatus - Plate 1 of morphological figuresissued from : V. N. Andronov & K. N. Kosobokova in Zootaxa, 2011, 2809. [p.39, Fig.3].
Female (from 85°45'N, 177°03'E): 1, A1; 2,-3, habitus (dorsal and lateral, respectively); 4, urosome (ventral); 5, genital double somite (lateral, left side); 6, A2; 7, Md (mandibular palp); 8, Md (mandibular blade); 9, Mx1; 10, Mx2; 11, Mxp.
Scale bars: 0.1 mm.

Nota: Prosome nearly 2.9 times as long as urosome and 2.1 times as long as wide
1st pediger separate from cephalosome, 4th and 5th pedigers fused.
A1 24-segmented, not reaching anal somite.
Genital double somite almost symmetrical ventrally, slightly expanding laterally approximately equal in length to two following somites combined. Anterior part of genital double somite protruding ventrally; spermathecae visible in ventral view but not obvious when viewed laterally.
Anal somite nearly two times longer than preceeding somite.
Caudal rami slightly asymmetrical, with left ramus slightly longer than right, both bearing 4 setae.

Species Pertsovius tridentatus - Plate 2 of morphological figuresissued from : V. N. Andronov & K. N. Kosobokova in Zootaxa, 2011, 2809. [p.40, Fig.4].
Female: 1, P1; 2, exopod of P2; 3, P2; 4, P3; 5, P4.
Scale bar: 0.1 mm.
1-2 and 4-5 : holotype; 3: paratype

NZ: 1

Distribution map of Pertsovius tridentatus by geographical zones
Arctic. (Makarov Basin)
N: 1
(1071) F: 1,0; {F: 1,0}
Rem.: Bathypelagic (Depth sampled: 1500-2000 m; bottom depth 2452 m).
For Andronov & Kosobokova (2011, p.41) the differential diagnosis is the presence of 3 external spines on 3rd segment of P2.
Last update : 28/01/2015
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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 April 25, 2024]

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Marine Planktonic Copepods

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