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New species of benthopelagic hydromedusae from the Weddell Sea
Bouillon, J.; Pagès, F.; Gili, J.-M. (2002). New species of benthopelagic hydromedusae from the Weddell Sea, in: Arntz, W.E. et al. (Ed.) Ecological studies in the Antarctic sea ice zone: results of EASIZ Midterm Symposium. pp. 10-16
In: Arntz, W.E.; Clarke, A. (Ed.) (2002). Ecological studies in the Antarctic sea ice zone: Results of EASIZ Midterm Symposium. Springer: Berlin. ISBN 3-540-43218-3. 277 pp.
Is gerelateerd aan:
Bouillon, J.; Pagès, F.; Gili, J.-M. (2001). New species of benthopelagic hydromedusae from the Weddell Sea. Polar Biol. 24(11): 839-845. https://dx.doi.org/10.1007/s003000100289, meer
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Trefwoorden
    Classification > Taxonomy
    Layers > Boundary layers > Benthic boundary layer
    PSW, Weddell Sea
    Taxa > New taxa > New genera
    Taxa > Species > New taxa > New species
    Voragonema pedunculata (Bigelow, 1913) [WoRMS]; Hydrozoa [WoRMS]; Sigiweddellia bathypelagica Bouillon, Pagès & Gili, 2001 [WoRMS]; Voragonema laciniata Bouillon, Pagès & Gili, 2001 [WoRMS]
    Weddell Sea [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Bouillon, J.
  • Pagès, F.
  • Gili, J.-M.
Abstract
    Four medusa species were collected by an epibenthic sledge during the Polarstern ANT XV/3 cruise carried out from January to March 1998 in the eastern Weddell Sea. The specimens were collected in the benthic boundary layer at depths ranging between 1,583 and 2,034 m; 2 of the species collected are new to science. The narcomedusa Sigiweddellia bathypelagica gen. nov. et sp. nov. is characterised by two types of marginal tentacles and closed marginal statocysts. The trachymedusa Voragonema laciniata sp. nov. (known only from the single holotype) is characterised by the number and irregular shape of the centripetal canals. These findings are the first to report benthopelagic hydromedusae in deep Antarctic waters. Examination of several specimens of Benthocodon pedunculata (Bigelow 1913) leads us to move it to the genus Voragonema Naumov 1971 because of the clear presence of centripetal expansions in the ring canal.
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