Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Brodskius ( Genus )
Brodskius arcticus  Andronov & Kosobokova, 2011   (F)
Andronov & Kosobokova, 2011 (p.34, figs.F, Rem.)
Species Brodskius arcticus - Plate 1 of morphological figuresissued from : V. N. Andronov & K. N. Kosobokova in Zootaxa, 2011, 2809. [p.35, Fig.1].
Female (73°24'N, 153°33'W): 1-2, habitus (dorsal, lateral, respectively); 3, A2; 4, rostrum (lateral, left side); 5, same (frontal view); 6-7, genital doublesomite (ventral and lateral, left side, respectively); 8, Md (masticatory edge); 9-10, mandibular blade; 11, Mx1; 12, Mx2; 13, Mxp.
Scale bars: 0.1 mm.
Nota: Absence of rostral filaments.
A1 24-segmented, slightly longer than prosome;
A2: coxa and basis lacking setae.
Md: gnathobase elongate, narrow; cutting edge narrow with deep incision; exopod 5-segmented, with setal formula 1, 1, 1, 1, 1.
mx1: praecoxal endite with 9 terminal and 2 posterior setae; coxal endite with 2 setae, coxal epipodite with 6 setae; proximal basal endite with 2 setae (one longer and thicker than other); distal basal endite fused to endopod with 9 setae (2 of them longer and thicker); exopod with 2 setae.
Mx2: proximal praecoxal endite with 4 setae, distal with 3 setae; proximal and distal coxal endites with 3 and 2 setae; proximal basal endite with 3 setae of different appearance (first worm-like, second thicker than others and heavily setulae, third of typical shape); distal basal endite plus endopod with 1 sclerotized seta and 8 sensory setae (4 worm-like and 5 brush-like, very zmall and difficult to see).
Mxp: Endopod 6-segmented with setal formula 2, 4, 3, 2, 2+1, 4; 1st segment of endopod clearly separated from basis.

Species Brodskius arcticus - Plate 2 of morphological figuresissued from : V. N. Andronov & K. N. Kosobokova in Zootaxa, 2011, 2809. [p.36, Fig.2 (1-5)].
Female: 1-4, P1 to P4, respectively; 5, P5.
Nota: P5 uniramous, three-segmented; coxae naked and fused to intercoxal sclerite; basis unarmed; exopod with 1 very small proximal outer spine, moderately short subterminal spine, 1 long terminal unarticulated toothed extension of segment, length approximately equal that of segment, and 1 long medial toothed spine. Terminal extension exceeding 2/3 of medial spine. Surfaces of all segments naked.

Species Brodskius arcticus - Plate 3 of morphological figuresissued from : V. N. Andronov & K. N. Kosobokova in Zootaxa, 2011, 2809. [p.37, Table 1].
Female: Spine and setal formula of swimming legs P1-P4.
Spine : Roman numerals; setae: Arabic numerals.

NZ: 1

Distribution map of Brodskius arcticus by geographical zones
Arct. (Canada Basin)
N: 1
(1071) F: 1,04; {F: 1,04}
Rem.: Bathypelagic (1000-2000 m)
Last update : 30/12/2014
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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., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed December 02, 2021]

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Marine Planktonic Copepods

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