The deep‑water squid Octopoteuthis sicula Rüppell, 1844 (Cephalopoda: Octopoteuthidae) as the single species of the genus occurring in the Mediterranean Sea
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AuthorsJereb, P. J. (Patrizia J.); Cannas, R. (Rita); Maiorano, P. (Porzia); Bello, G. (Giambattista); Garibaldi, F. (Fulvio); Mereu, M. (Marco); Ancona, F.G. (Francesco Giuseppe); Ammedndolia, G. (Giovanni); Battaglia, P. (Pietro); Duysak, O. (Önder); Hoving, H.J.T (Hendrik Jan T. ); Lefkaditou, E. (Eugenia); Lipinski, M. R. (Marek R.); Melis, R. (Riccardo); Peristeraki, P. (Panagiota); Ragonese, S. (Sergio); Romeo, T. (Teresa); Salman, A. (Alp); Santos, M.B. (María Begoña); Villari, A. (Alberto); Cuccu, D. (Danila)
The genus Octopoteuthis includes squids inhabiting meso- and bathypelagic waters worldwide. Of the seven presently named species distributed in the world’s oceans, only Octopoteuthis sicula has been reported for certain in the Mediterranean Sea to date. However, mixed and confusing descriptions of the systematic characters useful for identifying the species occur in the literature. Similarly, molecular analysis results available for the genus are contradictory and inconsistent. The research herein was undertaken firstly to clarify the systematic status of the genus in the Mediterranean Sea and confirm the presence of a single species, namely O. sicula. Additional goals were the assessment of the validity of systematic characters to identify the species and the analysis of beak morphology to provide useful tools in prey–predator relationship studies. Octopoteuthis specimens from various areas of the Mediterranean Sea and the Atlantic and Pacific oceans were compared, and ...
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