Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Rostrocalanidae ( Family )
            Rostrocalanus ( Genus )
Rostrocalanus cognatus  Markhaseva, Schulz & Martinez Arbizu, 2008   (F)
Ref.:
Markhaseva & al., 2008 (p.2427, Descr.F, figs.F); Laakmann & al., 2019 (p.330, fig. 3, 4, phylogenetic relationships)
Species Rostrocalanus cognatus - Plate 1 of morphological figuresissued from : E.L. Markhaseva, K. Schulz & P. Martinez Arbizu in J. Nat. Hist., 2008, 42 (37-40). [p.2428, Fig.4].
Female (from 17°06'-22°20'S, 3°18'-4°42E): A-B, habitus (lateral and dorsal, respectively): C-D, forehead (lateral and ventral, respectively); E-F, postrior prosome and urosome with spermatophore (right and left lateral, respectively); G, urosome (dorsal); H, posterior prosome, genital double somite and urosoe segment 2 (dorsal); J, genital double somite (ventral); K-N, posterior prosome and genital double-somite (lateral.
Scale bars: 0.1 mm.
Holotype: D-F, J. Pararype: A-C, H, K-N


Species Rostrocalanus cognatus - Plate 2 of morphological figuresissued from : E.L. Markhaseva, K. Schulz & P. Martinez Arbizu in J. Nat. Hist., 2008, 42 (37-40). [p.2429, Fig.5].
Female: A, A2; B, Md; C, Md (exopod); D-E, Md (gnathobase); F, Mx1; G, Mx2 (praecoxa and coxa); H, Mx2 (basis and endopod).
Scale bars = 0.1 mm.
Holotype: A-B, D, F). Paratype: C, E, G, H.


Species Rostrocalanus cognatus - Plate 3 of morphological figuresissued from : E.L. Markhaseva, K. Schulz & P. Martinez Arbizu in J. Nat. Hist., 2008, 42 (37-40). [p.2430, Fig.6].
Female: A, A1 (segments I-XVIII); B, A1 (segments XIX-XXVIII); C, A1 (segments XXVII-XXVIII); D, Mxp; E, P1, right; F, P1 (left endopod); G, P2; H, P3; J, P4 (coxa, basis, exopod segment 1 and endopod); K, P4 (exopod); L, P5.
Scale bars = 0.1 mm.
Holotype: C-J, L. Paratype: A-B, K.

NZ: 1

Distribution map of Rostrocalanus cognatus by geographical zones
Loc:
SE Atlantic
N: 1
Lg.:
(1024) F: 1,75-1,9; {F: 1,75-1,90}
Rem.: hyperbenthic (5125-5415 m).
Last update : 02/04/2019
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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 24, 2024]

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