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On a new diminutive Rhachotropis species from the North Sea, with a key to European Rhachotropis (Crustacea, Amphipoda, Eusiridae)
d’Udekem d’Acoz, C.; Vader, W.; Legezinska, J. (2007). On a new diminutive Rhachotropis species from the North Sea, with a key to European Rhachotropis (Crustacea, Amphipoda, Eusiridae). Boll. Mus. Civ. Stor. Nat. Verona Bot. Zool. 31: 31-49
In: Bollettino del Museo Civico di Storia Naturale di Verona. Botanica Zoologia. Museo Civico di Storia Naturale di Verona: Verona. ISSN 1590-8399, more
Peer reviewed article  

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Keywords
    Amphipoda [WoRMS]; Rhachotropis S.I. Smith, 1883 [WoRMS]; Marine
Author keywords
    Rhachotropis, Amphipoda, Europe, North Sea, new species, taxonomy, identification key, checklist

Authors  Top 
  • d’Udekem d’Acoz, C., more
  • Vader, W., more
  • Legezinska, J.

Abstract
    A new species of Rhachotropis, R. northriana n. sp, is described after 4 specimens from the area of the oilfield Statfjord (61°26’N 001°55’E to 001°58’E, 270-283 m depth) in the North Sea. It is by far the smallest of Rhachotropis species from the North Sea and the only North-European species with an entire telson. It is close to Rhachotropis integricauda Ca?ra?us¸u, 1948 from the Mediterranean Sea and the Bay of Biscay, but the rostrum of both species is different: in R. integricauda it points anteriorly, whilst in R. northriana n. sp. it is directed downwards. Illustrations of the holotype of R. integricauda are given for the first time. A new identification key to North-European Rhachotropis species is given.

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