{"id":22466,"date":"2016-09-25T10:38:59","date_gmt":"2016-09-25T08:38:59","guid":{"rendered":"https:\/\/opistobranquis.info\/?page_id=22466"},"modified":"2025-03-07T09:32:45","modified_gmt":"2025-03-07T08:32:45","slug":"glaucus-atlanticus","status":"publish","type":"page","link":"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/","title":{"rendered":"Glaucus atlanticus"},"content":{"rendered":"<p><\/p>\n<h3><em>Glaucus atlanticus<\/em> Forster, 1777<\/h3>\n<p><span style=\"font-size:10pt;\" class=\"aligncenter\"><div id=\"featured-img-id\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2018\/01\/Glaucus-atlanticus-%40-Boynton-Beach-Florida-USA-28-01-2018-by-Ariane-Dimitris.jpg?w=900&#038;ssl=1\" alt=\"Glaucus atlanticus @ Boynton Beach, Florida, USA 28-01-2018 by Ariane Dimitris\" \/><\/div><center><em>Glaucus atlanticus @ Boynton Beach, Florida, USA 28-01-2018<\/em> by Ariane Dimitris<\/center><\/span><p><\/p><div class=\"opk-worms\"><h3>WoRMS Taxonomic Information<\/h3><div class=\"opk-success\">Current accepted name: <strong><em>Glaucus atlanticus<\/em> Forster, 1777<\/strong><\/div><h4>Current classification<\/h4><table class=\"widefat striped\"><tr><th>Superdomain<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1\">Biota<\/a><\/td><\/tr><tr><th>Kingdom<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=2\">Animalia<\/a><\/td><\/tr><tr><th>Phylum<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=51\">Mollusca<\/a><\/td><\/tr><tr><th>Class<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=101\">Gastropoda<\/a><\/td><\/tr><tr><th>Subclass<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=14712\">Heterobranchia<\/a><\/td><\/tr><tr><th>Infraclass<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1057247\">Euthyneura<\/a><\/td><\/tr><tr><th>Subterclass<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1057249\">Ringipleura<\/a><\/td><\/tr><tr><th>Superorder<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=411966\">Nudipleura<\/a><\/td><\/tr><tr><th>Order<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1762\">Nudibranchia<\/a><\/td><\/tr><tr><th>Suborder<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=827889\">Cladobranchia<\/a><\/td><\/tr><tr><th>Superfamily<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=189\">Aeolidioidea<\/a><\/td><\/tr><tr><th>Family<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=23046\">Glaucidae<\/a><\/td><\/tr><tr><th>Genus<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=138033\"><em>Glaucus<\/em><\/a><\/td><\/tr><tr><th>Species<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=140022\"><em>Glaucus atlanticus<\/em> Forster, 1777<\/a><\/td><\/tr><\/table><p class=\"footer\">Classification provided by the World Register of Marine Species (WoRMS). [<a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=140022\">140022<\/a>]<\/p><\/div><strong>Taxonomic note<\/strong><span style=\"font-family: Ubuntu;\">: The genus <\/span><em>Glaucus<\/em><span style=\"font-family: Ubuntu;\"> was established in 1777 by the British naturalist Johann Reinhold Forster. He described the genus based on a number of specimens\u00a0of <\/span><em>Glaucus atlanticus<\/em><span style=\"font-family: Ubuntu;\"> collected during the second voyage of James Cook aboard the HMS Resolution. In 1848, the German naturalist Johannes Gistel proposed the name <\/span><em>Dadone<\/em><span style=\"font-family: Ubuntu;\"> to <\/span><em>Glaucus<\/em><span style=\"font-family: Ubuntu;\">, but it later deemed unnecessary and today it is considered invalid. Traditionally it was considered that the genus <\/span><em>Glaucus<\/em><span style=\"font-family: Ubuntu;\">\u00a0had only two species <\/span><em>Glaucus atlanticus<\/em><span style=\"font-family: Ubuntu;\">\u00a0and <\/span><em>Glaucus marginatus<\/em><span style=\"font-family: Ubuntu;\">, but in the work of Churchill et al. (2014) an anatomical and molecular study of different species of the genus <\/span><em>Glaucus<\/em><span style=\"font-family: Ubuntu;\"> -unexpectedly- revealed the presence of a species complex. <\/span><em>Glaucus Atlanticus<\/em><span style=\"font-family: Ubuntu;\"> was the only species found in the Atlantic Ocean, although it is also present throughout the Indo-Pacific, but under the name of <\/span><em>Glaucus marginatus<\/em><span style=\"font-family: Ubuntu;\"> four separate species (referred to informally as the clade &#8216;marginatus&#8217;) were discovered. There are three species (<\/span><em>Glaucus marginatus, Glaucus thompsoni<\/em><span style=\"font-family: Ubuntu;\"> and <\/span><em>Glaucus mcfarlanei<\/em><span style=\"font-family: Ubuntu;\">) cited in the North Pacific Gyre while there is a single species (<\/span><em>Glaucus marginatus<\/em><span style=\"font-family: Ubuntu;\">) cited in the South Pacific Gyre and the Indian Ocean. In addition, in the South Pacific there is another species <\/span><em>Glaucus bennettae<\/em><span style=\"font-family: Ubuntu;\">. Specimens\u00a0of <\/span><em>Glaucus atlanticus<\/em><span style=\"font-family: Ubuntu;\"> show some genetic differences in their different areas of distribution, but they are small, so it is considered to be a single species.<\/span><\/p>\n<p><strong>Synonyms<br \/>\n<\/strong><\/p>\n<ul>\n<li><span id=\"aphia_ct_tu_748500\"><i>Doris radiata<\/i> Gmelin, 1791<\/span><\/li>\n<li><span id=\"aphia_ct_tu_536875\"><i>Glaucus distichoicus<\/i> d&#8217;Orbigny, 1837<\/span><\/li>\n<li><span id=\"aphia_ct_tu_748839\"><i>Glaucus flagellum<\/i> Blumenblach, 1803<\/span><\/li>\n<li><span id=\"aphia_ct_tu_748840\"><i>Glaucus hexapterigius<\/i> Cuvier, 1805<\/span><\/li>\n<li><span id=\"aphia_ct_tu_754935\"><i>Glaucus lineatus<\/i> Reinhardt &amp; Bergh, 1864<\/span><\/li>\n<li><span id=\"aphia_ct_tu_748841\"><i>Glaucus longicirrhus<\/i> Reinhardt &amp; Bergh, 1864<\/span><\/li>\n<\/ul>\n<p><strong>Description<br \/>\n<\/strong><em>Glaucus atlanticus<\/em> can reach up to 30 mm in length. The body elongated, with the widest area right\u00a0behind the head, and finishing in a pointed tail. The overall color is silver, with the rhinophores, oral tentacles and the lower edge of the cerata colored electric blue. The dorsum\u00a0varies from dark brown to blue, while the foot is silvery in its central area, flanked by bands of light blue color that join\u00a0in the head and near the tip of the tail. The head is short and has\u00a0two\u00a0simple, smooth and very short tentacles, widely separated. The smooth rhinophores are located very low on the sides of the head. Cerata are laid in six groups, the first two, near the head, are pedunculated (growing of a short common base), while the four rear are sessile (growing\u00a0directly from the body side). The cerata are long and have a conical shape, are inserted into each group in a single series, and the most dorsal cerata is the longest. Each cerata ends in a cnidosac storing active stinging cells from their preys as a defense mechanism, and is easily autotomizable. The foot is wide and well developed, has a rounded anterior\u00a0end and extends to the tip of the tail on the back. The anus is located on the right side, between the second and third group of cerata, while the renal pore is located at the same level but slightly ahead of the second group of cerata.<\/p>\n<p><strong>Biology<br \/>\n<\/strong>It feeds on other pelagic creatures to which it\u00a0can swim with slow swimming movements performed with the\u00a0cerata. Among their preys are <em>Velella velella, Porpita porpita<\/em> and <em>Janthina janthina<\/em>, also\u00a0the stinging\u00a0siphonophore <em>Physalia physalis<\/em> (according to Miller, 1974), also known as &#8220;Portuguese man o&#8217;war&#8221;. It has the ability to sequester and store the active cnidarian nematocysts in its own tissues, as a protection against predators. The manipulation of these animals\u00a0by humans often results in painful and potentially dangerous stings, as they\u00a0concentrate the poisonous nematocysts in the cnidosacs, so their sting\u00a0is more powerful than the cnidarian&#8217;s. It has been documented that in captivity it may attack other specimens of the same species if there is no other\u00a0food. Like almost all heterobranchs, it is hermaphroditic, each individual having both male and female reproductive organs, but unlike most sea slugs which mate by joining\u00a0their right side, this species mates by\u00a0joining their ventral sides (Ross &amp; Quetin, 1990). After mating\u00a0both individuals produce egg masses formed by straight threads of white eggs up to 17.5 mm long that float freely in the water (Ross and Quetin, 1990). These authors also reported that freshly collected individuals produced 4-6 egg strings per hour with 36-96 eggs per string and a total of 3.300-8.900 eggs per day.\u00a0Being a pelagic animal\u00a0(that lives on the water surface), it floats upside down, with the foot towards the surface, thanks to an air bubble in its stomach that gulps periodically and the water surface tension on its many cerata (Miller, 1974). It is carried away by winds and ocean currents. Although they are animals that live in open ocean water, sometimes they strand on the beaches by the thousands, because of the action of wind, currents and waves.<\/p>\n<p><strong>Etymology<\/strong><\/p>\n<ul>\n<li><em>Glaucus<\/em>, from ancient Greek &#8220;\u0393\u03bb\u03b1\u1fe6\u03ba\u03bf\u03c2&#8221;, was a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Glaucus\">Greek prophetic sea-god<\/a>, born mortal, became immortal after\u00a0eating a magical herb. It was believed that he came to the rescue of sailors and fishermen in storms, having once been one himself. Also a Greek name meaning\u00a0&#8220;greyish blue&#8221; or &#8220;bluish green&#8221; and &#8220;glimmering&#8221;.<\/li>\n<li><em>Atlanticus<\/em>, Latin form of the Greek &#8220;Atlantikos&#8221;, meaning &#8220;of Atlas&#8221;, in reference to Mount Atlas in Mauritania. Atlantic is the name for the &#8220;sea off the west coast of Africa&#8221;, applied to the whole ocean since c. 1600.<\/li>\n<\/ul>\n<p><strong>Distribution<br \/>\n<\/strong>It\u00a0lives in temperate and tropical seas of all the world&#8217;s oceans. It has been found in the eastern and southern coast of Africa, in European waters, the east coast of Australia, New Zealand, Hawai&#8217;i and Mozambique. It has\u00a0also been cited in the Gulf of Aden (Thompson &amp; McFarlane, 2008), in Andhra Pradesh, in the Bay of Bengal and on the coast of Tamil Nadu (India) (Srinivasulu et al. 2012), also in Bermuda (Johnston Barnes, O. 01\/25\/2016). There are recent reports of its\u00a0presence in the Humboldt Current, off the coast of Peru (Uribe et al., 2013).\u00a0Also in the Canary islands\u00a0[D\u2019Orbigny (1839), P\u00e9rez et al. (1990), P\u00e9rez S\u00e1nchez, Bacallado and Ortea (1991), Moro et al. (1995, 2003), Ortea et al. (2001)],\u00a0Madeira [Bergh (1899)] and Azores [Simroth (1888), Bergh (1899), Wirtz (1998), Malaquias (2001), Wirtz and Debelius (2003)] in the NE Atlantic, and in the Balearic islands [Hidalgo (1916), Bofill and Aguilar-Amat (1924)] in the Mediterranean Sea.<br \/>\n<div id=\"flxmap-6a999111e7deb\" class='flxmap-container' data-flxmap='flxmap_6a999111e7deb' style=\"width:100%;height:400px;\"><\/div>\n<script data-noptimize=\"1\">\n\/* <![CDATA[ *\/\n(function(w, fn) {\n if (w.addEventListener) w.addEventListener(\"DOMContentLoaded\", fn, false);\n else if (w.attachEvent) w.attachEvent(\"onload\", fn);\n})(window, function() {\n var f = new FlexibleMap();\n f.panControl = true;\n f.mapTypeId = \"satellite\";\n f.setlocale(\"en-US\");\n f.kmlcache = \"5 minutes\";\n f.showKML(\"flxmap-6a999111e7deb\", \"https:\/\/opistobranquis.info\/wp-content\/uploads\/kms\/22466.kmz\");\n window.flxmap_6a999111e7deb = f;\n});\n\/* ]]> *\/\n<\/script>\n<div style=\"width:100%;text-align:center;margin:12px 0 4px 0;\">\n  <div style=\"font-size:8pt;margin-bottom:6px;\">Known georeferenced records of the species: <em>Glaucus atlanticus<\/em><\/div>\n  <table style=\"margin:0 auto;border-collapse:collapse;font-size:8pt;\">\n    <tr><td colspan=\"2\" style=\"text-align:left;padding-bottom:4px;\"><strong>Sources:<\/strong><\/td><\/tr>\n    <tr>\n      <td style=\"vertical-align:top;padding-right:40px;\">\n        <table style=\"border-collapse:collapse;\">\n<tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/wht-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>OBIS<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/ylw-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>GROC 2010-2011<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/grn-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Enric Madrenas<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/orange-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Jo\u00e3o Pedro Silva<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/pink-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Bernard Picton<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/blk-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>GBIF<\/td><\/tr>        <\/table>\n      <\/td>\n      <td style=\"vertical-align:top;\">\n        <table style=\"border-collapse:collapse;\">\n<tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/purple-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>OPK<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/red-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>VIMAR<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/blu-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Manuel Ballesteros<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/cyan-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>M@re Nostrum<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/grey-circle-lv.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Altres fonts<\/td><\/tr><tr><td style='padding:1px 6px 1px 0;vertical-align:middle'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/kms\/marreg.png?w=900&#038;ssl=1\" style='display:block'><\/td><td style='padding:1px 0;vertical-align:middle;white-space:nowrap'>Marine Regions<\/td><\/tr>        <\/table>\n      <\/td>\n    <\/tr>\n  <\/table>\n<\/div>\n<\/p>\n<p><strong>Error:<\/strong> Chart.js no est\u00e1 disponible.<\/p>\n<p><strong>Videos<\/strong><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/406784201?dnt=1&amp;app_id=122963\" width=\"900\" height=\"675\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><strong>More pictures<\/strong><br \/>\n<div class=\"tiled-gallery type-rectangular tiled-gallery-unresized\" data-original-width=\"900\" data-carousel-extra='{&quot;blog_id&quot;:1,&quot;permalink&quot;:&quot;https:\\\/\\\/opistobranquis.info\\\/en\\\/guia\\\/nudibranchia\\\/cladobranchia\\\/aeolidioidea\\\/glaucus-atlanticus\\\/&quot;,&quot;likes_blog_id&quot;:44192421}' itemscope itemtype=\"http:\/\/schema.org\/ImageGallery\" > <div class=\"gallery-row\" style=\"width: 900px; height: 656px;\" data-original-width=\"900\" data-original-height=\"656\" > <div class=\"gallery-group images-1\" style=\"width: 600px; height: 656px;\" data-original-width=\"600\" data-original-height=\"656\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a 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data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2016\/09\/Glaucus-atlanticus-%40-Ilha-do-Pr%C3%ADncipe-S%C3%A3o-Tom%C3%A9-e-Pr%C3%ADncipe-23-09-2016-by-Aketza-Herrero.jpg?fit=274%2C300&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2016\/09\/Glaucus-atlanticus-%40-Ilha-do-Pr%C3%ADncipe-S%C3%A3o-Tom%C3%A9-e-Pr%C3%ADncipe-23-09-2016-by-Aketza-Herrero.jpg?fit=877%2C960&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2016\/09\/Glaucus-atlanticus-%40-Ilha-do-Pr%C3%ADncipe-S%C3%A3o-Tom%C3%A9-e-Pr%C3%ADncipe-23-09-2016-by-Aketza-Herrero.jpg?w=596&#038;h=652&#038;ssl=1\" width=\"596\" height=\"652\" loading=\"lazy\" data-original-width=\"596\" data-original-height=\"652\" itemprop=\"http:\/\/schema.org\/image\" title=\"Glaucus atlanticus @ Ilha do Pr\u00edncipe (S\u00e3o Tom\u00e9 e Pr\u00edncipe) 23-09-2016 by Aketza Herrero\" alt=\"Glaucus atlanticus @ Ilha do Pr\u00edncipe (S\u00e3o Tom\u00e9 e Pr\u00edncipe) 23-09-2016 by Aketza Herrero\" style=\"width: 596px; height: 652px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Glaucus atlanticus @ Ilha do Pr\u00edncipe (S\u00e3o Tom\u00e9 e Pr\u00edncipe) 23-09-2016 by Aketza Herrero <\/div> <\/div> <\/div> <!-- close group --> <div class=\"gallery-group images-3\" style=\"width: 300px; height: 656px;\" data-original-width=\"300\" data-original-height=\"656\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/glaucus-atlanticus-15mm-with-janthina-janthina-sea-snail-gran-canaria-spain-by-sabina-lopez\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"296\"> <meta itemprop=\"height\" content=\"222\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"31966\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-15mm-with-Janthina-janthina-sea-snail-@-Gran-Canaria-Spain-by-Sabina-Lopez.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"\" data-image-title=\"Glaucus atlanticus ~15mm with Janthina janthina sea snail @ Gran Canaria, Spain by Sabina L\u00f3pez\" data-image-description=\"&lt;p&gt;Glaucus atlanticus ~15mm with Janthina janthina sea snail @ Gran Canaria, Spain by Sabina L\u00f3pez&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-15mm-with-Janthina-janthina-sea-snail-%40-Gran-Canaria-Spain-by-Sabina-Lopez.jpg?fit=300%2C225&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-15mm-with-Janthina-janthina-sea-snail-%40-Gran-Canaria-Spain-by-Sabina-Lopez.jpg?fit=900%2C675&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-15mm-with-Janthina-janthina-sea-snail-%40-Gran-Canaria-Spain-by-Sabina-Lopez.jpg?w=296&#038;h=222&#038;ssl=1\" width=\"296\" height=\"222\" loading=\"lazy\" data-original-width=\"296\" data-original-height=\"222\" itemprop=\"http:\/\/schema.org\/image\" title=\"Glaucus atlanticus ~15mm with Janthina janthina sea snail @ Gran Canaria, Spain by Sabina L\u00f3pez\" alt=\"Glaucus atlanticus ~15mm with Janthina janthina sea snail @ Gran Canaria, Spain by Sabina L\u00f3pez\" style=\"width: 296px; height: 222px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Glaucus atlanticus ~15mm with Janthina janthina sea snail @ Gran Canaria, Spain by Sabina L\u00f3pez <\/div> <\/div> <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/glaucus-atlanticus-gran-canaria-spain-12-03-2021-by-sabina-lopez\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"296\"> <meta itemprop=\"height\" content=\"224\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"31974\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-@-Gran-Canaria-Spain-12.03.2021-by-Sabina-Lopez.jpg\" data-orig-size=\"1024,775\" data-comments-opened=\"\" data-image-title=\"Glaucus atlanticus @ Gran Canaria, Spain 12.03.2021 by Sabina L\u00f3pez\" data-image-description=\"&lt;p&gt;Glaucus atlanticus @ Gran Canaria, Spain 12.03.2021 by Sabina L\u00f3pez&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-%40-Gran-Canaria-Spain-12.03.2021-by-Sabina-Lopez.jpg?fit=300%2C227&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-%40-Gran-Canaria-Spain-12.03.2021-by-Sabina-Lopez.jpg?fit=900%2C681&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2021\/03\/Glaucus-atlanticus-%40-Gran-Canaria-Spain-12.03.2021-by-Sabina-Lopez.jpg?w=296&#038;h=224&#038;ssl=1\" width=\"296\" height=\"224\" loading=\"lazy\" data-original-width=\"296\" data-original-height=\"224\" itemprop=\"http:\/\/schema.org\/image\" title=\"Glaucus atlanticus @ Gran Canaria, Spain 12.03.2021 by Sabina L\u00f3pez\" alt=\"Glaucus atlanticus @ Gran Canaria, Spain 12.03.2021 by Sabina L\u00f3pez\" style=\"width: 296px; height: 224px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Glaucus atlanticus @ Gran Canaria, Spain 12.03.2021 by Sabina L\u00f3pez <\/div> <\/div> <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/glaucus-atlanticus-00-la-laja-gran-canaria-by-mario-matute\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"296\"> <meta itemprop=\"height\" content=\"198\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"46153\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg\" data-orig-size=\"1592,1061\" data-comments-opened=\"\" data-image-title=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" data-image-description=\"&lt;p&gt;Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?fit=300%2C200&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?fit=900%2C599&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?w=296&#038;h=198&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?w=1592&amp;ssl=1 1592w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=150%2C100&amp;ssl=1 150w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-00-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=1536%2C1024&amp;ssl=1 1536w\" width=\"296\" height=\"198\" loading=\"lazy\" data-original-width=\"296\" data-original-height=\"198\" itemprop=\"http:\/\/schema.org\/image\" title=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" alt=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" style=\"width: 296px; height: 198px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute <\/div> <\/div> <\/div> <!-- close group --> <\/div> <!-- close row --> <div class=\"gallery-row\" style=\"width: 900px; height: 601px;\" data-original-width=\"900\" data-original-height=\"601\" > <div class=\"gallery-group images-1\" style=\"width: 900px; height: 601px;\" data-original-width=\"900\" data-original-height=\"601\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/glaucus-atlanticus-02-la-laja-gran-canaria-by-mario-matute\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"896\"> <meta itemprop=\"height\" content=\"597\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"46154\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg\" data-orig-size=\"2228,1485\" data-comments-opened=\"\" data-image-title=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" data-image-description=\"&lt;p&gt;Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?fit=300%2C200&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?fit=900%2C600&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?w=896&#038;h=597&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?w=2228&amp;ssl=1 2228w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=150%2C100&amp;ssl=1 150w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?resize=2048%2C1365&amp;ssl=1 2048w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2025\/03\/Glaucus-atlanticus-02-La-Laja-Gran-Canaria-by-Mario-Matute.jpg?w=1800&amp;ssl=1 1800w\" width=\"896\" height=\"597\" loading=\"lazy\" data-original-width=\"896\" data-original-height=\"597\" itemprop=\"http:\/\/schema.org\/image\" title=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" alt=\"Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute\" style=\"width: 896px; height: 597px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Glaucus atlanticus @ La Laja, Gran Canaria by Mario Matute <\/div> <\/div> <\/div> <!-- close group --> <\/div> <!-- close row --> <\/div><\/p>\n<p><p><strong>Bibliography<\/strong><\/p><ul><div id=\"zotpress-4afaae02cce6b1610b37c16a91fa82a2\" class=\"zp-Zotpress zp-Zotpress-Bib wp-block-group\">\n\n\t\t<span class=\"ZP_API_USER_ID ZP_ATTR\">1246567<\/span>\n\t\t<span class=\"ZP_ITEM_KEY ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_COLLECTION_ID ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_TAG_ID ZP_ATTR\">Glaucus atlanticus<\/span>\n\t\t<span class=\"ZP_AUTHOR ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_YEAR ZP_ATTR\"><\/span>\n        <span class=\"ZP_ITEMTYPE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_INCLUSIVE ZP_ATTR\">1<\/span>\n\t\t<span class=\"ZP_STYLE ZP_ATTR\">eunomia-revista-en-cultura-de-la-legalidad<\/span>\n\t\t<span class=\"ZP_LIMIT ZP_ATTR\">50<\/span>\n\t\t<span class=\"ZP_SORTBY ZP_ATTR\">creator<\/span>\n\t\t<span class=\"ZP_ORDER ZP_ATTR\">asc<\/span>\n\t\t<span class=\"ZP_TITLE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_SHOWIMAGE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_SHOWTAGS ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_DOWNLOADABLE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_NOTES ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_ABSTRACT ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_CITEABLE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_TARGET ZP_ATTR\">1<\/span>\n\t\t<span class=\"ZP_URLWRAP ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_FORCENUM ZP_ATTR\"><\/span>\n        <span class=\"ZP_HIGHLIGHT ZP_ATTR\"><\/span>\n        <span class=\"ZP_POSTID ZP_ATTR\">22466<\/span>\n\t\t<span class=\"ZOTPRESS_PLUGIN_URL ZP_ATTR\">https:\/\/opistobranquis.info\/wp-content\/plugins\/zotpress\/<\/span>\n\n\t\t<div class=\"zp-List loading\">\n\t\t\t<div class=\"zp-SEO-Content\">\n\n\t\t\t<\/div><!-- .zp-zp-SEO-Content -->\n\t\t<\/div><!-- .zp-List -->\n\t<\/div><!--.zp-Zotpress-->\n\n<p><\/p>Bibliography based on the works by <b>Steve Long, 2006<\/b>. <a target=_blank href=https:\/\/opistobranquis.info\/wp-content\/uploads\/2016\/06\/Long-S.-2006-Bibliography-of-Opisthobranchia-1554-2000.pdf>Bibliography of Opisthobranchia 1554-2000<\/a> and <b>Gary McDonald, 2009<\/b>. <a href=http:\/\/escholarship.org\/uc\/item\/8115h0wz>Bibliographia Nudibranchia<\/a>, with later updates from other resources.<p><\/p><\/ul><p><\/p><p><strong>Further reading<\/strong><\/p><span style=\"font-size:10pt\"><ul><ul class=\"blogroll-links\"><li><a href=\"http:\/\/www.biodiversitylibrary.org\/name\/Glaucus%20atlanticus\">Biodiversity Heritage Library<\/a><\/li><li><a href=\"http:\/\/bluedragonslug.weebly.com\/index.html\">Blue Dragon<\/a><\/li><li><a href=\"http:\/\/www.eol.org\/pages\/451180\/overview\">Encyclopedia of Life<\/a><\/li><li><a href=\"https:\/\/www.flickr.com\/search\/?text=Glaucus%20atlanticus\">Flickr pictures<\/a><\/li><li><a href=\"http:\/\/www.irmng.org\/aphia.php?p=taxlist&#038;tName=Glaucus%20atlanticus\">Interim Register of Marine and Nonmarine Genera<\/a><\/li><li><a href=\"http:\/\/www.underwaterkwaj.com\/nudi\/eolids\/e142.htm\">Kwajalein Underwater<\/a><\/li><li><a href=\"http:\/\/www.ncbi.nlm.nih.gov\/Taxonomy\/Browser\/wwwtax.cgi?mode=Undef&#038;name=Glaucus%20atlanticus&#038;lvl=0&#038;srchmode=1\">NCBI GenBank<\/a><\/li><li><a href=\"http:\/\/www.nudibranch.com.au\/pages\/7584b.htm\">Nudibranchs of the Sunshine Coast<\/a><\/li><li><a href=\"http:\/\/iobis.org\/mapper\/?taxon=Glaucus%20atlanticus\">OBIS - Search by Taxon<\/a><\/li><li><a href=\"http:\/\/www.seaslugforum.net\/showall\/glauatla\">Sea Slug Forum<\/a><\/li><li><a href=\"http:\/\/www.seaslugsofhawaii.com\/species\/Glaucus-atlanticus-a.html\">Sea Slugs of Hawai&#039;i<\/a><\/li><li><a href=\"http:\/\/seaslugs.free.fr\/nudibranche\/a_glau_atlanticus.htm\">South-west Indian Ocean Seaslug site<\/a><\/li><li><a href=\"http:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&#038;id=140022\">World Register of Marine Species<\/a><\/li><\/ul><\/ul><\/span><p><strong>Cite this article as: <\/strong><\/p><div style=\"display: block; background: #444444; padding: 10px 30px 10px 10px; border-radius: 5px; line-height: 18px;\"><p class=\"citacio\"><b>Pontes, Miquel, Manuel Ballesteros, Enric Madrenas<\/b> (2025) <em>\"Glaucus atlanticus\"<\/em> in <em>OPK-Opistobranquis<\/em>. Published: 25\/09\/2016. Accessed: 03\/09\/2026. Available at (<a href=https:\/\/opistobranquis.info\/en\/?p=22466>https:\/\/opistobranquis.info\/en\/?p=22466<\/a>)<\/p><p><\/p><\/div><p><\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Glaucus atlanticus Forster, 1777 Taxonomic note: The genus Glaucus was established in 1777 by the British naturalist Johann Reinhold Forster. He described the genus based on a number of specimens\u00a0of Glaucus atlanticus collected during the second voyage of James Cook aboard the HMS Resolution. In 1848, the German naturalist Johannes Gistel proposed the name Dadone to Glaucus, but it later deemed unnecessary and today it is considered invalid. Traditionally it\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/glaucus-atlanticus\/\">Continue reading<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":423,"featured_media":24754,"parent":456,"menu_order":8614,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-22466","page","type-page","status-publish","has-post-thumbnail","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/pages\/22466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/users\/423"}],"replies":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/comments?post=22466"}],"version-history":[{"count":5,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/pages\/22466\/revisions"}],"predecessor-version":[{"id":46155,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/pages\/22466\/revisions\/46155"}],"up":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/pages\/456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/media\/24754"}],"wp:attachment":[{"href":"https:\/\/opistobranquis.info\/en\/wp-json\/wp\/v2\/media?parent=22466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}