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  • A re-evaluation of the Abarenicola assimilis group with a new species from the Falkland Islands and key to species

  • Teresa Darbyshire
  • Journal:
    Journal of the Marine Biological Association of the United Kingdom / Volume 97 / Issue 5 / August 2017
    Published online by Cambridge University Press:
    10 August 2017, pp. 897-910
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  • The new species Abarenicola wellsi n. sp. from the Falkland Islands is described along with a re-description of Abarenicola brevior n. stat. with which it had previously been confused. The two species are distinguished using both morphological and molecular techniques, new characters are described and previously recognized characters are clarified, all of which support the assignment of species status as opposed to subspecies. Both species are part of the Abarenicola assimilis ‘group’ within which all taxa were originally described as subspecies. The group as a whole is re-evaluated and all members are elevated from subspecies to species status based mainly on the new characters of shape, distribution and pigmentation of the proboscidial papillae. The group now consists of six species: Abarenicola assimilis n. stat., A. brevior n. stat., Abarenicola devia n. stat., Abarenicola haswelli n. stat., Abarenicola insularum n. stat. and A. wellsi n. sp.