Species Card of Copepod
Calanoida ( Order )
    Spinocalanoidea ( Superfamily )
        Spinocalanidae ( Family )
            Damkaeria ( Genus )
Damkaeria bicornuta  Schulz, 2004   (F,M)
Ref.:
Schulz, 2004 (p.199, figs.F,M)
Species Damkaeria bicornuta - Plate 1 of morphological figuresissued from : K. Schulz in Mitt. hamb. zool. Mus. Inst., 2004, 101. [p.200, Fig.1].
Female (from E Weddell Sea): A, habitus (dorsal); B, idem (lateral left side); C, urosome (ventral); D, posterior part of metasome and urosome (lateral left side); E, genital segment (ventral); F, rostrum (anterioventral view); G, A2.
Bars: 0.05 mm.
Nota: A1 23-segmented. Genital segment symmetrical, bearing lateral horn-shaped extension on each side projecting laterodistally


Species Damkaeria bicornuta - Plate 2 of morphological figuresissued from : K. Schulz in Mitt. hamb. zool. Mus. Inst., 2004, 101. [p.201, Fig.2].
Female: A, A1 (segments I-VI); B, idem (segments VII to IXX); C, idem (segments XX to XXVIII); D, Md (masticatory blade); E, Md (mandibular palp); G, Mxp.
Bars: 0.05 mm.


Species Damkaeria bicornuta - Plate 3 of morphological figuresissued from : K. Schulz in Mitt. hamb. zool. Mus. Inst., 2004, 101. [p.204, Fig.1].
Female: A, Mx2; B, Mx2 (2nd coxal endite); C, P1 (anterior); C1, terminal spine of exopodal segment 3; D, P2 (posterior); E, P3 (posterior); F, P4 (posterior).

Male: G, Mx1.
Bar: 0.05 mm.


Species Damkaeria bicornuta - Plate 4 of morphological figuresissued from : K. Schulz in Mitt. hamb. zool. Mus. Inst., 2004, 101. [p.205, Fig.4].
Male: A, habitus (dorsal); B, idem (lateral right side); C, right A1; D, Mxp; E, P1 (anterior); F, P4 (posterior); G, P5 of right side.
bars: 0.05 mm.
Nota: right A1 22-segmented; left A1 23-segmented. Genital somite with simple gonopore opening on left side. Exopod of P5 3-segmented.

NZ: 1

Distribution map of Damkaeria bicornuta by geographical zones
Loc:
Antarct. (E Weddell Sea: off Vestkapp)
N: 1
Lg.:
(957) F: 0,79-0,89; M: 0,68-0,70; {F: 0,79-0,89; M: 0,68-0,70}
Rem.: epibenthic (depth: 1983 m).
Schulz (2004, p.206) points to the peculiar wing-like horn-shaped extensions on the genital segment are reminiscent of similar but only convergently developed structures described for the females of two species of the genus Prodisco (family Discoidae). It is unclear what function these lateral protuberances might serve.
Last update : 03/01/2015
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2022. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed January 28, 2022]

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