Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Scolecitrichidae ( Family )
            Xantharus ( Genus )
Xantharus renatehaassae  Schulz, 1998   (F)
Ref.:
Schulz, 1998 (p.42, Descr.F, figs.F); Ohtsuka & al., 2003 (p.61: Rem.); Schulz, 2006 (p.57, Descr.M, Rem.
Species Xantharus renatehaassae - Plate 1 of morphological figuresissued from : K. Schulz in Helgoland. Meeres., 1998, 52. [p.44, Fig.1].
Female (from 74°36'.2S, 27°15.8'W): A, habitus (dorsal); B, idem (lateral left side) (A1 damaged); C, rostrum (ventrofrontal); D, idem (lateral); E, urosome (ventral); F, genital degment (lateral left side); G, A2.

Nota: Cephalosome and 1st pediger fused, 4th and 5th fused.
- A1 slightly asymmetrical (probably caused by previous regeneration following damage to distal segments of right side); left A1 24-segmented, extending to middle of 2nd pediger. - Anal somite very short.


Species Xantharus renatehaassae - Plate 2 of morphological figuresissued from : K. Schulz in Helgoland. Meeres., 1998, 52. [p.45, Fig.2].
Female: A, A1 (segments 1-10); A', idem (segments 11-24); B, Md; C, Md (masticatory edge); D, Mx1; E, Mxp (ae = aesthetasc); E', aesthetasc of coxal endite 3 of Mxp.

Nota: Mx1 with arthrite of praecoxa with 9 large spines plus 1 slender seta and 3 posterior setae; endite and epipodite of coxa with 2 and 9 setae, respectively; proximal and distal endites of basis each with 4 setae; endopod fused to basis with 3, 3, 5 setae; exopod with 8 setae.


Species Xantharus renatehaassae - Plate 3 of morphological figuresissued from : K. Schulz in Helgoland. Meeres., 1998, 52. [p.46, Fig.3].
Female: A, Mx2 (armature of endopod not entirely shown); A', Mx2 (endopod); B, P1 (anterior); C, P2 (posterior); D, P3 (posterior); E, P4 (posterior); F, P5 (posterior) (left partly detached).

Compl. Ref.:
Ohtsuka & al., 1998 (p.785); Bradford-Grieve, 2004 (p.285); Bradford-Grieve, 2005 (p.947, tab.1: morphological remarks)
NZ: 1

Distribution map of Xantharus renatehaassae by geographical zones
Loc:
Antarct. (South Shetland Is., E Weddell Sea)
N: 2
Lg.:
(814) F: 1,36; (975) M: 1,1-1,12; {F: 1,36; M: 1,10-1,12}
Rem.: 500-1040 m; epibenthic (1573-1535 m).
This species is closely related to X. formosus.
Morphological characteristics (from Bradford-Grieve , 2005, p.947): A1 extends to middle of pedigerous 2; basis of Md with 4 setae; inner lobe 1 of Mx2 with 5 setae; basis of P1 naked; general proportions of P5: elongate; basis and exopod of P5: separate; exopod of P5 with 2 spines.
Last update : 28/03/2016
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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2019. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed July 20, 2019]

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