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The European Zoological Journal Volume 88, 2021 - Issue 1
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Research Article

When nature continues to surprise: observations of the hectocotylus of Argonauta argo, Linnaeus 1758

P. Battaglia1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, ItalyCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-1822-7775
ORCID Icon,
M. G. Stipa1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, ItalyORCID Iconhttps://orcid.org/0000-0001-6674-879X
ORCID Icon,
G. Ammendolia2 Independent Researcher, Messina, Italy
,
C. Pedà1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, ItalyORCID Iconhttps://orcid.org/0000-0002-0894-2540
ORCID Icon,
P. Consoli1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, ItalyORCID Iconhttps://orcid.org/0000-0001-8135-3876
ORCID Icon,
F. Andaloro1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, Italy
&
T. Romeo1 Stazione Zoologica Anton Dohrn, National Institute of Biology, Ecology and Marine Biotechnology, Sicily Marine Centre, Messina, Italy;3 ISPRA, Italian National Institute for Environmental Protection and Research, Milazzo, ItalyORCID Iconhttps://orcid.org/0000-0001-8515-1964
ORCID Icon show all
Pages 980-986 | Received 04 Mar 2021, Accepted 13 Aug 2021, Published online: 26 Aug 2021

Figures & data

Figure 1. The hectocotylus found inside the shell of Argonauta argo on 30 December 2020 in the Strait of Messina (central Mediterranean Sea)

Figure 1. The hectocotylus found inside the shell of Argonauta argo on 30 December 2020 in the Strait of Messina (central Mediterranean Sea)

Figure 2. Photo sequence of hectocotylus movements and behaviour. From (a)–(c): hectocotylus movements inside the shell; from (d)–(f): the hectocotylus was separated from the shell; from (g)–(i): the hectocotylus comes back to the brood case

Figure 2. Photo sequence of hectocotylus movements and behaviour. From (a)–(c): hectocotylus movements inside the shell; from (d)–(f): the hectocotylus was separated from the shell; from (g)–(i): the hectocotylus comes back to the brood case
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