Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Phaennidae ( Family )
            Brachycalanus ( Genus )
Brachycalanus antarcticus  Schulz, 2005   (F)
Ref.:
Schulz, 2005 (p.52, Descr.F, figs.F, Rem.); Andronov, 2014 (p.36, fig.: A2)
Species Brachycalanus antarcticus - Plate 1 of morphological figuresissued from : K. Schulz in Mitt. Hamb. Zool. Mus. Inst., 2005, 102. [p.53, Fig.1].
Female (from W Weddell Sea): A, habitus (dorsal); B, idem (lateral left side); C, rostrum (frontal); D, A1 (segments 1-13= ancestral I-XVI); E, A1 (segments 14-24 = ancestral XVII-XXVIII).
Scale bars = 0.100 mm.
Nota: Prosome/Urosome = 3,6. A1 24-segmented.


Species Brachycalanus antarcticus - Plate 2 of morphological figuresissued from : K. Schulz in Mitt. Hamb. Zool. Mus. Inst., 2005, 102. [p.54, Fig.2].
Female: A, A2; B, Md; C, Mx1; D, Mxp.
Scale bars = 0.050 mm;
Nota: Praecoxal arthrite with 5 spine-like setae and 4 slender setae (proximal 2 appear posterior); coxal epipodite with 7 large and 2 small setae; coxal and 1st basal endite with 3 and 4 setae, respectivelt; 2nd basal endite with 5 setae; endopod indistinctly 3-sefgmented and separated from basis with 3, 2, 4 setae; exopod lobate, relatively long, with 10 marginal setae. Mxp with syncoxa from proximal to distal with 1 long sensory, plumose seta, 1small sclerotized seta plus 1 long vermiform sensoriform seta, 1 brush-like sensoriform seta bearing large head, and 1 sclerotized seta.


Species Brachycalanus antarcticus - Plate 3 of morphological figuresissued from : K. Schulz in Mitt. Hamb. Zool. Mus. Inst., 2005, 102. [p.57, Fig.3].
Female: A, Mx2 (endopod omitted); B, Mx2 (endopod); C, P1 (anterior); D, P2 (posterior); E, P3 (posterior); F, P4 (posterior); G, P1 (posterior, exopod omitted).
Scale bars = 0.050 mm.
Nota: Endopod of Mx2 3-segmented with 9 sensory elements, their proximal and distal parts enclosed in partly transparent mass: 6 brush-like sensoriform setae of similar length, 1 medium-sized and 1 small brush-like sensoriform setae, and 1 long vermiform seta distally


Species Brachycalanus antarcticus - Plate 4 of morphological figuresissued from : K. Schulz in Mitt. Hamb. Zool. Mus. Inst., 2005, 102. [p.58, Fig.4 A].
Female: P5 (posterior, left ramus surface spinules omitted).

Species Brachycalanus antarcticus - Plate 5 of morphological figuresIssued from : V.N. Andronov in Russian Acad. Sci. P.P. Shirshov Inst. Oceanol. Atlantic Branch, Kaliningrad, 2014. [p.36, Fig.9, 6]. Brachicalanus antarcticus after Schulz, 2005.
6, distal segment of exopod of A2.

NZ: 1

Distribution map of Brachycalanus antarcticus by geographical zones
Loc:
Antarct. (E Weddell Sea)
N: 1
Lg.:
(976) F: 2,02-2,15; {F: 2,02-2,15}
Rem.: hyperbenthic (depth: 1056-1061 m).
Last update : 19/04/2016
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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 20, 2022]

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