Xanthocalanus gracilis Wolfenden, 1911
Taxonomy & Nomenclature
Synonym/s: Amallophora gracilis (Wolfenden, 1911)
Conservation Status
Last (and only) record: 1911 or before (type collection) (Wolfenden, 1911; Ohtsuka et al., 1998)
Rediscovered in: 1993-1994 (Ohtsuka et al., 1998)
Although officially rediscovered in 1993-1994 (Ohtsuka et al., 1998), the male Xanthocalanus sp. from stage V reported by (Bradford & Wells, 1983) are probably referable to X. gracilis (Ohtsuka et al., 1998:594).
Distribution & Habitat
Antarctica (incl. Lützow-Holm Bay & Ross Ice Shelf)
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Wolfenden, N. R. (1911). Die marinen Copepoden der Deutschen Südpolar Expedition, 1901—1902. II. Die pelagischen Copepoden der Westwinddrif und des südlichen Eismeers mit Bescreibung mererer Arten aus dem Atlantischen Ozean, Deutsche Südpolar-Expedition, 12, Zoology 4: 181-380.
Other references:
Bradford-Grieve, Janet M. (2004). Deep-sea benthopelagic calanoid copepods and their colonization of the near-bottom environment. Zoological Studies 43(2): 276-291.
Bradford, J. M., Haakonssen, L. and Jillett, J. B. (1983). The marine fauna of New Zealand: pelagic calanoid copepods: families Euchaetidae, Phaennidae, Scolecithricidae, Diaixidae, and Tharybidae. Mem. N.Z. oceanogr. Inst., 90: 1-150.
Bradford, I. M. and Wells, J. B. J. (1983). New calanoid and harpacticoid copepods from beneath the Ross Ice Shelf, Antarctica. Polar Biology 2: 1-15.
Hardy, A. C. and Gunther, F. R. (1935 or 1936). The plankton of the South Georgia whaling grounds and adjacent waters, 1926-1927. Discovery Rep., 11: 1-456.
Hopkins, T. L. (1985). Food web of an Antarctic midwater ecosystem. Marine Biology 89: 197-212. https://doi.org/10.1007/BF00392890
Lee, Christine N. W. (2004). Distribution of necrophagous copepods in the Cape d’Aguilar Marine Reserve, Hong Kong. Zoological Studies 43(2): 304-313.
Ohtsuka, S., Takeuchi, I. and Tanimura, A. (1998). Xanthocalanus gracilis and Tharybis magna (Copepoda: Calanoida) rediscovered from the Antarctic Ocean with baited traps. Journal of Natural History 32: 785-804.
Razouls, C. (1994). Manuel d'identification des principales espèces de copépodes pélagiques antarctiques et subantarctiques. Annales de l'Institut océanographique, Paris, 70(1): 3-204.
Razouls, C., Desreumaux, N., Kouwenberg, J. and de Bovée, F. (2005-2023). Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed 11 March 2023]
Razouls, S., Razouls, C. and De Bovée, F. (2000). Biodiversity and biogeography of Antarctic copepods. Antarctic Science 12(3): 343-362.
Sewell, R. B. Seymour. (1948). The free-swimming planktonic Copepoda. Geographical distribution. Scient. Rep. John Murray Exped. 8(3): 317-592.
Takeuchi, I., Watanabe, K., Tanimura, A. and Fukuchi, M. (2001). Assemblages of necrophagous animals off Enderby Land, east Antarctica. Polar Biology 24: 650-656. https://doi.org/10.1007/s003000100264
Walter, T. C. and Boxshall, G. (2025). World of Copepods Database. Xanthocalanus gracilis Wolfenden, 1911. Accessed at: https://www.marinespecies.org/copepoda/aphia.php?p=taxdetails&id=345710 on 2025-04-11