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<h1 id="firstHeading" class="firstHeading mw-first-heading"><i>Opecarcinus</i></h1>
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<table cellpadding="2" class="float-right taxobox infobox" id="Vorlage_Taxobox" style="width:300px;margin-top:0.5em;" summary="Taxobox">
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<th><i>Opecarcinus</i>
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<td class="taxo-bild" style="font-size:smaller;">
<p><i><a href="Opecarcinus_hypostegus" title="Opecarcinus hypostegus">Opecarcinus hypostegus</a></i>
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<th><a href="Systematik_(Biologie)" title="Systematik (Biologie)">Systematik</a>
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Ordnung</a>:</i>
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<td><a href="Zehnfu%C3%9Fkrebse" title="Zehnfußkrebse">Zehnfußkrebse</a> (Decapoda)
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Unterordnung</a>:</i>
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<td><a href="Pleocyemata" title="Pleocyemata">Pleocyemata</a>
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<td><i><a href="Ordnung_(Biologie)" title="Ordnung (Biologie)">Teilordnung</a>:</i>
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<td><a href="Krabben" title="Krabben">Krabben</a> (Brachyura)
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<td><i><a href="Familie_(Biologie)" title="Familie (Biologie)">Überfamilie</a>:</i>
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<td><a href="Gallkrabben" title="Gallkrabben">Cryptochiroidea</a>
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<td><i><a href="Familie_(Biologie)" title="Familie (Biologie)">Familie</a>:</i>
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<td><a href="Gallkrabben" title="Gallkrabben">Gallkrabben</a> (Cryptochiridae)
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<td><i><a href="Gattung_(Biologie)" title="Gattung (Biologie)">Gattung</a>:</i>
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<td><i>Opecarcinus</i>
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<th><a href="Nomenklatur_(Biologie)" title="Nomenklatur (Biologie)">Wissenschaftlicher Name</a>
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<td class="taxo-name"><i>Opecarcinus</i>
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<td class="Person">Kropp &amp; <a href="Raymond_B._Manning" title="Raymond B. Manning">Manning</a>, 1987
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<p><i><b>Opecarcinus</b></i> ist eine Gattung der <a href="Gallkrabben" title="Gallkrabben">Gallkrabben</a> mit 10 Arten.<sup id="cite_ref-worms_1-0" class="reference"><a href="#cite_note-worms-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Sie bewohnen <a href="Litoral" title="Litoral">Gezeitenzone</a> und <a href="Schelf" title="Schelf">Schelf</a> in Tiefen bis zu 82&nbsp;m im tropischen <a href="Atlantischer_Ozean" title="Atlantischer Ozean">Atlantik</a> und <a href="Indopazifik" title="Indopazifik">Indopazifik</a>.<sup id="cite_ref-Poore_2-0" class="reference"><a href="#cite_note-Poore-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Sie sind obligate <a href="Symbiont" title="Symbiont">Symbionten</a> bei <a href="Steinkorallen" title="Steinkorallen">Steinkorallen</a>.<sup id="cite_ref-Davie_et_al._2015_3-0" class="reference"><a href="#cite_note-Davie_et_al._2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Merkmale">Merkmale</h2></div>
<p><i>Opecarcinus</i> wird bis zu 4&nbsp;mm lang. Der <a href="Carapax" title="Carapax">Carapax</a> ist vasenförmig und im hinteren Teil am breitesten. Die vordere Verlängerung des vierten <a href="Thorax_(Gliederf%C3%BC%C3%9Fer)" title="Thorax (Gliederfüßer)">thorakalen</a> <a href="Sternit" class="mw-redirect" title="Sternit">Sterniten</a> trägt Höcker. Die <a href="Spaltbein" title="Spaltbein">Meri</a> der <a href="Schreitbein" class="mw-redirect" title="Schreitbein">Schreitbeine</a> (P2 bis P5) können kleine Zähnchen aufweisen, der des P2 ist am Ende innenseitig erweitert und überlappt die Basis des Carapax oder innerer und äußerer Rand sind gleich und überlappen den Carapax nicht.<sup id="cite_ref-Poore_2-1" class="reference"><a href="#cite_note-Poore-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Systematik">Systematik</h2></div>
<p>Die Gattung umfasst folgende Arten:<sup id="cite_ref-worms_1-1" class="reference"><a href="#cite_note-worms-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
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<ul><li><i>Opecarcinus aurantius</i> <style data-mw-deduplicate="TemplateStyles:r261921330">
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</style><span class="Person h-card">Kropp</span>, 1989</li>
<li><i>Opecarcinus cathyae</i> <span class="Person h-card">van der Meij</span>, 2014</li>
<li><i>Opecarcinus crescentus</i> (<span class="Person h-card">Edmondson</span>, 1925)</li>
<li><i>Opecarcinus granulatus</i> (<span class="Person h-card">Shen</span>, 1936)</li>
<li><i><a href="Opecarcinus_hypostegus" title="Opecarcinus hypostegus">Opecarcinus hypostegus</a></i> (<span class="Person h-card">Shaw &amp; Hopkins</span>, 1977)</li>
<li><i>Opecarcinus lobifrons</i> <span class="Person h-card">Kropp</span>, 1989</li>
<li><i>Opecarcinus ngankeeae</i> <span class="Person h-card">Wong, van der Meij &amp; Chan</span>, 2024</li>
<li><i>Opecarcinus peliops</i> <span class="Person h-card">Kropp</span>, 1989</li>
<li><i>Opecarcinus pholeter</i> <span class="Person h-card">Kropp</span>, 1989</li>
<li><i>Opecarcinus sierra</i> <span class="Person h-card">Kropp</span>, 1989</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-worms-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-worms_1-0">a</a></sup> <sup><a href="#cite_ref-worms_1-1">b</a></sup></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://www.marinespecies.org/aphia.php?p=taxdetails&amp;id=240955"><i>Opecarcinus Kropp &amp; Manning, 1987.</i></a> In: <i><a href="World_Register_of_Marine_Species" title="World Register of Marine Species">World Register of Marine Species</a>.</i><span class="Abrufdatum"> Abgerufen am 3.&nbsp;November 2025</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AOpecarcinus&amp;rft.title=Opecarcinus+Kropp+%26+Manning%2C+1987&amp;rft.description=Opecarcinus+Kropp+%26+Manning%2C+1987&amp;rft.identifier=https%3A%2F%2Fwww.marinespecies.org%2Faphia.php%3Fp%3Dtaxdetails%26id%3D240955&amp;rft.language=en">&nbsp;</span></span>
</li>
<li id="cite_note-Poore-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Poore_2-0">a</a></sup> <sup><a href="#cite_ref-Poore_2-1">b</a></sup></span> <span class="reference-text"><a href="Gary_C._B._Poore" title="Gary C. B. Poore">Gary C. B. Poore</a>, <a href="Shane_T._Ahyong" title="Shane T. Ahyong">Shane T. Ahyong</a>: <cite style="font-style:italic">Opecarcinus Kropp &amp; Manning, 1987</cite>. In: <cite style="font-style:italic">Marine Decapod Crustacea: A Guide to Families and Genera of the World</cite>. Csiro Publishing, 2023, ISBN 978-1-4863-1180-4, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>800</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Opecarcinus&amp;rft.atitle=Opecarcinus+Kropp+%26+Manning%2C+1987&amp;rft.au=Gary+C.+B.+Poore%2C+Shane+T.+Ahyong&amp;rft.btitle=Marine+Decapod+Crustacea%3A+A+Guide+to+Families+and+Genera+of+the+World&amp;rft.date=2023&amp;rft.genre=book&amp;rft.isbn=9781486311804&amp;rft.pages=800&amp;rft.pub=Csiro+Publishing" style="display:none">&nbsp;</span></span>
</li>
<li id="cite_note-Davie_et_al._2015-3"><span class="mw-cite-backlink"><a href="#cite_ref-Davie_et_al._2015_3-0">↑</a></span> <span class="reference-text">Peter J. F. Davie, <a href="Dani%C3%A8le_Guinot" title="Danièle Guinot">Danièle Guinot</a>, Peter K. L. Ng: <cite style="font-style:italic">Systematics and Classification of the Brachyura</cite>. In: Peter Castro, Peter J. F. Davie, Danièle Guinot, Frederick R. Schram, J. Carel von Vaupel Klein (Hrsg.): <cite style="font-style:italic">The Crustacea</cite>. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em">&nbsp;</span>2</span>. Koninklijke Brill NV, Leiden 2015, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>1116</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Opecarcinus&amp;rft.atitle=Systematics+and+Classification+of+the+Brachyura&amp;rft.au=Peter+J.+F.+Davie%2C+Dani%C3%A8le+Guinot%2C+Peter+K.+L.+Ng&amp;rft.btitle=The+Crustacea&amp;rft.date=2015&amp;rft.genre=book&amp;rft.pages=1116&amp;rft.place=Leiden&amp;rft.pub=Koninklijke+Brill+NV&amp;rft.volume=2" style="display:none">&nbsp;</span></span>
</li>
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