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First observation of a double tentacle bifurcation in cephalopods

Published online by Cambridge University Press:  12 February 2009

Ángel F. González  and
Ángel Guerra
Ángel F. González*
Affiliation:
ECOBIOMAR, Instituto de Investigaciones Marinas, CSIC, Eduardo Cabello n°6, 36208, Vigo, Spain
Ángel Guerra
Affiliation:
ECOBIOMAR, Instituto de Investigaciones Marinas, CSIC, Eduardo Cabello n°6, 36208, Vigo, Spain
*
Correspondence should be addressed to: Ángel F. González, ECOBIOMAR, Instituto de Investigaciones Marinas, CSIC, Eduardo Cabello n°6, 36208, Vigo, Spain email: afg@iim.csic.es
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Abstract

A female with the two tentacles bifurcated was found within a sample of 54 specimens of Moroteuthis ingens collected by a Spanish trawler fishing in the South Atlantic around the Falklands Islands during the austral spring of 2004. This is the first case of double tentacle bifurcation reported for this oegopsid squid and also for cephalopods. In spite of the lack of normal tentacles, the specimen does not show signs of malnutrition. Potential causes for this anomaly, implications to the feeding behaviour of the animal and the regeneration process are discussed.

Keywords

Cephalopodstentacle bifurcationregeneration processMoroteuthis ingens
Type
Research Article
Information
Marine Biodiversity Records , Volume 1 , January 2008 , e44
Copyright
Copyright © Marine Biological Association of the United Kingdom 2006

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