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Revision of the Arctic cod genus Arctogadus

Authors

  • A. D. Jordan,

    Corresponding author
    1. Marine Biological Laboratory, Strandpromenaden 5, 3000 Helsingør, Denmark and
      Author to whom correspondence should be addressed. Tel.: +45 49213344; fax: +45 49261165; email: adjordan@zi.ku.dk
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  • P. R. Møller,

    1. Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark
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  • J. G. Nielsen

    1. Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark
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Author to whom correspondence should be addressed. Tel.: +45 49213344; fax: +45 49261165; email: adjordan@zi.ku.dk

Abstract

Examination of 200 specimens (54–477 mm LS) of the high Arctic cod genus Arctogadus showed that A. borisovi should be considered a junior synonym of A. glacialis. The most important specific characters hitherto used, i.e. length of barbel, interorbital width, horizontal diameter of eye and number of rakers on the anterior gill arch, were shown to be strongly affected by allometric change and were not of specific diagnostic value. A redescription of A. glacialis is given with new information on its biology.

Ancillary