Occurrence of Chiroteuthis mega (Cephalopoda, Chiroteuthidae) in the Northeast Atlantic Ocean Identified by Integrative Taxonomy

  • Xesús Morales
  • Rafael Bañón
  • Andrea Ramilo
  • Ángel Guerra


A total of eight specimens of the squid family Chiroteuthidae were captured with a large semi-pelagic trawl net over bottom depths of 252–256 m in the NE Atlantic off NW Spain (Galicia, 42°34′N–8°08′E) in April 2016. Three of these specimens were morphologically identified as Chiroteuthis mega. The identification was genetically confirmed using sequences from 18S rDNA, COI and 16S rDNA genes. This finding represents the first in situ identification of individuals of the species caught in the Northeastern Atlantic Ocean, which signifies an extension of its known geographic distribution range. It also expands its known depth range from mesopelagic and bathypelagic depths to epipelagic waters.


Chiroteuhis mega Cephalopods Biogeography Northeastern Atlantic 



We gratefully acknowledge the scientific staff of the Instituto Español de Oceanografía (IEO) and the crew of the vessel “Virxe do Mar” for their valuable help during the on board sampling. Our thanks are also due to Manuel E. Garci, Lara García Alves and Javier Tamame for their technical assistance.


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© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones CientíficasPontevedraSpain
  2. 2.Grupo de Estudos do Medio Mariño (GEMM)A CoruñaSpain

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