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A new species of Sabellacheres M. Sars, 1862 (Copepoda: Gastrodelphyidae) from a deep-water benthic polychaete in Antarctic waters, with a key to the species of the genus
Suárez-Morales, E.; Boxshall, G.A. (2012). A new species of Sabellacheres M. Sars, 1862 (Copepoda: Gastrodelphyidae) from a deep-water benthic polychaete in Antarctic waters, with a key to the species of the genus. Syst. Parasitol. 83(1): 65-75. https://dx.doi.org/10.1007/s11230-012-9371-x
In: Systematic Parasitology. Kluwer: The Hague; Dordrecht. ISSN 0165-5752; e-ISSN 1573-5192, more
Peer reviewed article  

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Keyword
    Marine/Coastal

Authors  Top 
  • Suárez-Morales, E.
  • Boxshall, G.A., more

Abstract
    Specimens of a deep-living sabellid polychaete of the genus Perkinsiana Knight-Jones dredged in Antarctic waters were found to be parasitised by an undescribed species of the cyclopoid copepod genus Sabellacheres M. Sars, 1862. Specimens of both sexes were studied using light microscopy and SEM, and compared with its congeners. The new species, Sabellacheres antarcticus n. sp., can be distinguished from its congeners by the shape and proportions of the body and brood-pouch, its 4-segmented antennae, the shape and length of the distal process of the second antennular segment, the position of leg 3, and the structure of the male maxilliped. This is only the second record of a species of this genus from the southern hemisphere. The new species was found on a single host species, as is typical for most species of Sabellacheres. A key for the identification of both sexes of the species of Sabellacheres is included.

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