{"id":18306,"date":"2015-02-21T16:46:25","date_gmt":"2015-02-21T15:46:25","guid":{"rendered":"https:\/\/opistobranquis.info\/?page_id=18306"},"modified":"2026-03-20T11:03:27","modified_gmt":"2026-03-20T10:03:27","slug":"roxaniella-jeffreysi","status":"publish","type":"page","link":"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/","title":{"rendered":"Roxaniella jeffreysi"},"content":{"rendered":"<p><\/p>\n<h3><em>Roxaniella jeffreysi<\/em>\u00a0(Weinkauff, 1866)<\/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\/2021\/06\/FB_IMG_1623793835717.jpg?w=900&#038;ssl=1\" alt=\"Roxaniella jeffreysi @ Split, Croatia by Pero Ugarkovi\u0107\" \/><\/div><center><em>Roxaniella jeffreysi @ Split, Croatia<\/em> per Pero Ugarkovi\u0107<\/center><\/span><p><\/p><div class=\"opk-worms\"><h3>Informaci\u00f3 taxon\u00f2mica WoRMS<\/h3><div class=\"opk-success\">Nom acceptat actual: <strong><em>Roxaniella jeffreysi<\/em> (Weinkauff, 1866)<\/strong><\/div><h4>Classificaci\u00f3 actual<\/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=1057250\">Tectipleura<\/a><\/td><\/tr><tr><th>Order<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=154\">Cephalaspidea<\/a><\/td><\/tr><tr><th>Superfamily<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=411892\">Haminoeoidea<\/a><\/td><\/tr><tr><th>Family<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=23052\">Haminoeidae<\/a><\/td><\/tr><tr><th>Genus<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=754714\"><em>Roxaniella<\/em><\/a><\/td><\/tr><tr><th>Species<\/th><td><a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1342955\"><em>Roxaniella jeffreysi<\/em> (Weinkauff, 1866)<\/a><\/td><\/tr><\/table><p class=\"footer\">Classificaci\u00f3 proporcionada pel World Register of Marine Species (WoRMS). [<a target=\"_blank\" href=\"https:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&id=1342955\">1342955<\/a>]<\/p><\/div><strong data-start=\"177\" data-end=\"197\">Nota taxon\u00f2mica:<\/strong>\u00a0Descrita originalment com <em data-start=\"251\" data-end=\"279\">Bulla (Cylichna) jeffreysi<\/em> per Weinkauff (1866), a partir de material pr\u00e8viament conf\u00f3s amb altres esp\u00e8cies del g\u00e8nere <em data-start=\"372\" data-end=\"379\">Bulla<\/em>. Posteriorment, Monterosato (1884) va erigir el g\u00e8nere <em data-start=\"435\" data-end=\"447\">Roxaniella<\/em> per a aquesta esp\u00e8cie; tanmateix, en gran part de la literatura contempor\u00e0nia ha estat tractada com <em data-start=\"548\" data-end=\"564\">Atys jeffreysi<\/em>, considerant <em data-start=\"578\" data-end=\"590\">Roxaniella<\/em> com a sin\u00f2nim o subg\u00e8nere d\u2019<em data-start=\"619\" data-end=\"625\">Atys<\/em> (Oskars <em>et al<\/em>., 2017). Estudis recents basats en filog\u00e8nia molecular han demostrat que les esp\u00e8cies mediterr\u00e0nies tradicionalment assignades a <em data-start=\"769\" data-end=\"775\">Atys<\/em> no constitueixen un grup monofil\u00e8tic, fet que suggereix afinitats amb diferents llinatges indo-pac\u00edfics i posa de manifest la inestabilitat taxon\u00f2mica del grup (Oskars <em>et al<\/em>., 2017, 2019). En aquest context, l\u2019\u00fas de <em data-start=\"992\" data-end=\"1004\">Roxaniella<\/em> ha estat reinstaurat en treballs recents sobre la filog\u00e8nia dels Haminoeidae sensu lato (Oskars <em>et al<\/em>., 2019), tot i que la seva acceptaci\u00f3 encara no \u00e9s universal.<\/p>\n<p><strong>Sin\u00f2nims<\/strong><\/p>\n<ul>\n<li><span id=\"aphia_ct_tu_747883\"><i>Bulla blainvilliana<\/i> R\u00e9cluz, 1843<\/span><\/li>\n<li><span id=\"aphia_ct_tu_754715\"><i>Bulla ovulata<\/i> Brocchi, 1814 <i>sensu<\/i> Jeffreys, 1856 (id. incorrecta)<\/span><\/li>\n<li><span id=\"aphia_ct_tu_748303\"><i>Cylichna jeffreysi<\/i> Weinkauff, 1866<\/span><\/li>\n<li><em>Atys jeffreysi<\/em> (Weinkauff, 1866)<\/li>\n<\/ul>\n<p><strong>Descripci\u00f3<br \/>\n<\/strong>Animal transl\u00facid, amb el cos cobert per petits punts blancs; el mantell, sota la conquilla, presenta taques irregulars de color marr\u00f3 m\u00e9s o menys rogenc, que tamb\u00e9 apareixen disperses sobre l\u2019escut cef\u00e0lic i els l\u00f2buls parapodials (Oskars <em>et al<\/em>., 2017). L\u2019escut cef\u00e0lic \u00e9s curt, ample, arrodonit i bilobulat, amb petits l\u00f2buls cef\u00e0lics ben definits; els ulls s\u00f3n visibles per transpar\u00e8ncia. Els l\u00f2buls parapodials s\u00f3n de forma triangular (Oskars <em>et al<\/em>., 2017). La conquilla \u00e9s transl\u00facida, de tonalitat blanquinosa a groguenca, de forma cil\u00edndrica i truncada als dos extrems. La superf\u00edcie est\u00e0 recorreguda per estries espirals que cobreixen tota la conquilla, formades per indentacions arrodonides fusionades, alternant estries m\u00e9s gruixudes i m\u00e9s fines. Les estries axials (l\u00ednies de creixement) intersecten les espirals generant un patr\u00f3 decussat caracter\u00edstic. L\u2019obertura s\u2019est\u00e9n al llarg de tota la conquilla, estrenyent-se cap a l\u2019\u00e0pex; el llavi extern sobrepassa l\u2019\u00e0pex i s\u2019arqueja cap a la regi\u00f3 superior de la columel\u00b7la, sense presentar plecs ni torsi\u00f3 apical. El llavi columel\u00b7lar mostra un plec d\u00e8bil i s\u2019observa un petit solc umbilical darrere d\u2019aquest plec (Oskars <em>et al<\/em>., 2017).<\/p>\n<p><strong>Biologia<br \/>\n<\/strong>Els exemplars estudiats per Oskars <em>et al<\/em>. (2017) van ser recol\u00b7lectats entre 40 i 60 m de profunditat en fons marins del Mediterrani, fet que suggereix afinitat per h\u00e0bitats infra- i circalitorals relativament profunds. No es disposa d\u2019informaci\u00f3 publicada espec\u00edfica sobre l\u2019alimentaci\u00f3 ni sobre la biologia reproductiva d\u2019aquesta esp\u00e8cie.<\/p>\n<p><strong>Etimologia<\/strong><\/p>\n<ul>\n<li><em>Jeffreysi<\/em>. En honor a John Gwyn Jeffreys, (1809-1885), advocat de Swansea, que es va interessar en la malacologia ja de\u00a0jove. Jeffreys no es va dedicar \u00fanicament a la recol\u00b7lecci\u00f3 de petxines, sin\u00f3 a tot el relacionat amb els mol\u00b7luscs. Va comen\u00e7ar a organitzar expedicions de dragat, visitant les illes Shetland, l&#8217;Oest d&#8217;Esc\u00f2cia, les Illes del Canal, Noruega, etc., acompanyat per especialistes escollits. Va participar en algunes expedicions m\u00e9s llargues a l&#8217;Oest de Groenlandia i al Golf de Biscaia i va visitar a col\u00b7legues recol\u00b7lectors a l&#8217;estranger. No estava d&#8217;acord amb el darwinisme, perqu\u00e8, segons la seva opini\u00f3, donava a entendre que no es trobarien\u00a0fronteres entre les esp\u00e8cies. El seu treball principal, &#8220;British Conchology&#8221;, en 5 volums, va ser publicat entre 1862 i 1869. La seva extensa col\u00b7lecci\u00f3 de petxines va ser\u00a0adquirida el 1883 per W.H. Dall de la Smithsonian Institution.<\/li>\n<\/ul>\n<p><strong>Distribuci\u00f3<br \/>\n<\/strong>La localitat tipus d\u2019aquesta esp\u00e8cie \u00e9s La Spezia (It\u00e0lia), a la costa del mar de Lig\u00faria (Mediterrani). L\u2019esp\u00e8cie ha estat documentada en diverses \u00e0rees del Mediterrani i a la regi\u00f3 macaronesica (Madeira i Can\u00e0ries) (Oskars <em>et al<\/em>., 2017; Moro <em>et al<\/em>., 2003). Els exemplars analitzats en la redescripci\u00f3 d\u2019Oskars <em>et al<\/em>. (2017) procedeixen de Malta, fet que confirma la seva pres\u00e8ncia al Mediterrani central. La mida redu\u00efda de l\u2019esp\u00e8cie i l\u2019escassetat de cites podrien indicar que la seva distribuci\u00f3 real est\u00e0 insuficientment documentada. <div id=\"flxmap-6aa13d0bea38c\" class='flxmap-container' data-flxmap='flxmap_6aa13d0bea38c' 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(\"ca-ES\");\n f.kmlcache = \"5 minutes\";\n f.showKML(\"flxmap-6aa13d0bea38c\", \"https:\/\/opistobranquis.info\/wp-content\/uploads\/kms\/18306.kmz\");\n window.flxmap_6aa13d0bea38c = 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;\">Cites georeferenciades conegudes de l'esp\u00e8cie: <em>Roxaniella jeffreysi<\/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>Fonts:<\/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>Altres fotos<\/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\\\/ca\\\/guia\\\/cephalaspidea\\\/haminoeoidea\\\/roxaniella-jeffreysi\\\/&quot;,&quot;likes_blog_id&quot;:44192421}' itemscope itemtype=\"http:\/\/schema.org\/ImageGallery\" > <div class=\"gallery-row\" style=\"width: 900px; height: 441px;\" data-original-width=\"900\" data-original-height=\"441\" > <div class=\"gallery-group images-1\" style=\"width: 605px; height: 441px;\" data-original-width=\"605\" data-original-height=\"441\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/atys-jeffreysi-gnejna-bay-mgarr-malta-by-constantino-mifsud\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"601\"> <meta itemprop=\"height\" content=\"437\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"18309\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2015\/02\/Atys-jeffreysi-@-Gnejna-Bay-Mgarr-Malta-by-Constantino-Mifsud.jpg\" data-orig-size=\"800,582\" data-comments-opened=\"\" data-image-title=\"Roxaniella jeffreysi @ Gnejna Bay, Mgarr, Malta by Constantino Mifsud\" data-image-description=\"&lt;p&gt;Roxaniella jeffreysi @ Gnejna Bay, Mgarr, Malta by Constantino Mifsud&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2015\/02\/Atys-jeffreysi-%40-Gnejna-Bay-Mgarr-Malta-by-Constantino-Mifsud.jpg?fit=300%2C218&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2015\/02\/Atys-jeffreysi-%40-Gnejna-Bay-Mgarr-Malta-by-Constantino-Mifsud.jpg?fit=800%2C582&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2015\/02\/Atys-jeffreysi-%40-Gnejna-Bay-Mgarr-Malta-by-Constantino-Mifsud.jpg?w=601&#038;h=437&#038;ssl=1\" width=\"601\" height=\"437\" loading=\"lazy\" data-original-width=\"601\" data-original-height=\"437\" itemprop=\"http:\/\/schema.org\/image\" title=\"Roxaniella jeffreysi @ Gnejna Bay, Mgarr, Malta by Constantino Mifsud\" alt=\"Roxaniella jeffreysi @ Gnejna Bay, Mgarr, Malta by Constantino Mifsud\" style=\"width: 601px; height: 437px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Roxaniella jeffreysi @ Gnejna Bay, Mgarr, Malta <\/div> <\/div> <\/div> <!-- close group --> <div class=\"gallery-group images-1\" style=\"width: 295px; height: 441px;\" data-original-width=\"295\" data-original-height=\"441\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/roxaniella-jeffreysi-bahia-de-tufia-gran-canaria-26-sep-2025-by-juan-jose-calderin-penate-3\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"291\"> <meta itemprop=\"height\" content=\"437\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"48185\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-@-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-3.jpg\" data-orig-size=\"683,1024\" data-comments-opened=\"\" data-image-title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" data-image-description=\"&lt;p&gt;Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-3.jpg?fit=200%2C300&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-3.jpg?fit=683%2C1024&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-3.jpg?w=291&#038;h=437&#038;ssl=1\" width=\"291\" height=\"437\" loading=\"lazy\" data-original-width=\"291\" data-original-height=\"437\" itemprop=\"http:\/\/schema.org\/image\" title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" alt=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" style=\"width: 291px; height: 437px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate <\/div> <\/div> <\/div> <!-- close group --> <\/div> <!-- close row --> <div class=\"gallery-row\" style=\"width: 900px; height: 682px;\" data-original-width=\"900\" data-original-height=\"682\" > <div class=\"gallery-group images-1\" style=\"width: 456px; height: 682px;\" data-original-width=\"456\" data-original-height=\"682\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/roxaniella-jeffreysi-bahia-de-tufia-gran-canaria-26-sep-2025-by-juan-jose-calderin-penate-2\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"452\"> <meta itemprop=\"height\" content=\"678\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"48186\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-@-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-2.jpg\" data-orig-size=\"417,625\" data-comments-opened=\"\" data-image-title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" data-image-description=\"&lt;p&gt;Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-2.jpg?fit=200%2C300&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-2.jpg?fit=417%2C625&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-2.jpg?w=452&#038;h=678&#038;ssl=1\" width=\"452\" height=\"678\" loading=\"lazy\" data-original-width=\"452\" data-original-height=\"678\" itemprop=\"http:\/\/schema.org\/image\" title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" alt=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" style=\"width: 452px; height: 678px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate <\/div> <\/div> <\/div> <!-- close group --> <div class=\"gallery-group images-2\" style=\"width: 444px; height: 682px;\" data-original-width=\"444\" data-original-height=\"682\" > <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/roxaniella-jeffreysi-bahia-de-tufia-gran-canaria-26-sep-2025-by-juan-jose-calderin-penate-1\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"440\"> <meta itemprop=\"height\" content=\"294\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"48187\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-@-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-1.jpg\" data-orig-size=\"1024,684\" data-comments-opened=\"\" data-image-title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" data-image-description=\"&lt;p&gt;Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-1.jpg?fit=300%2C200&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-1.jpg?fit=900%2C601&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-%40-bahia-de-Tufia-Gran-Canaria-26-sep-2025-by-Juan-Jose-Calderin-Penate-1.jpg?w=440&#038;h=294&#038;ssl=1\" width=\"440\" height=\"294\" loading=\"lazy\" data-original-width=\"440\" data-original-height=\"294\" itemprop=\"http:\/\/schema.org\/image\" title=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" alt=\"Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate\" style=\"width: 440px; height: 294px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Roxaniella jeffreysi @ bah\u00eda de Tufia, Gran Canaria, 26 sep 2025 by Jos\u00e9 Juan Calder\u00edn Pe\u00f1ate <\/div> <\/div> <div class=\"tiled-gallery-item tiled-gallery-item-large\" itemprop=\"associatedMedia\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"> <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/roxaniella-jeffreysi-by-oskars-et-al-2017\/\" border=\"0\" itemprop=\"url\"> <meta itemprop=\"width\" content=\"440\"> <meta itemprop=\"height\" content=\"380\"> <img decoding=\"async\" class=\"\" data-attachment-id=\"48227\" data-orig-file=\"https:\/\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg\" data-orig-size=\"888,767\" data-comments-opened=\"\" data-image-title=\"Roxaniella jeffreysi by Oskars et al. (2017)\" data-image-description=\"&lt;p&gt;Roxaniella jeffreysi by Oskars et al. (2017)&lt;\/p&gt; \" data-medium-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?fit=300%2C259&#038;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?fit=888%2C767&#038;ssl=1\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?w=440&#038;h=380&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?w=888&amp;ssl=1 888w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?resize=300%2C259&amp;ssl=1 300w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2026\/03\/Roxaniella-jeffreysi-by-Oskars-et-al.-2017.jpg?resize=150%2C130&amp;ssl=1 150w\" width=\"440\" height=\"380\" loading=\"lazy\" data-original-width=\"440\" data-original-height=\"380\" itemprop=\"http:\/\/schema.org\/image\" title=\"Roxaniella jeffreysi by Oskars et al. (2017)\" alt=\"Roxaniella jeffreysi by Oskars et al. (2017)\" style=\"width: 440px; height: 380px;\" \/> <\/a> <div class=\"tiled-gallery-caption\" itemprop=\"caption description\"> Roxaniella jeffreysi by Oskars et al. (2017) <\/div> <\/div> <\/div> <!-- close group --> <\/div> <!-- close row --> <\/div><\/p>\n<p><p><strong>Bibliografia<\/strong><\/p><ul><div id=\"zotpress-62cb8c7992148ecee8edcdc24bc6c921\" 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\">Roxaniella jeffreysi<\/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\">18306<\/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>Bibliografia basada en els treballs de <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> i <b>Gary McDonald, 2009<\/b>. <a href=http:\/\/escholarship.org\/uc\/item\/8115h0wz>Bibliographia Nudibranchia<\/a>, amb actualitzacions posteriors procedents d\u00b4altres fonts.<p><\/p><\/ul><p><\/p><p><strong>M\u00e9s informaci\u00f3<\/strong><\/p><span style=\"font-size:10pt\"><ul><ul class=\"blogroll-links\"><li><a href=\"http:\/\/www.biodiversitylibrary.org\/name\/Atys%20jeffreysi\">Biodiversity Heritage Library<\/a><\/li><li><a href=\"https:\/\/www.flickr.com\/search\/?text=Atys+jeffreysi\">Flickr pictures<\/a><\/li><li><a href=\"http:\/\/www.opistobranquis.org\/ca\/guia\/179\">GROC<\/a><\/li><li><a href=\"http:\/\/www.idscaro.net\/sci\/04_med\/class\/fam3\/species\/roxaniella_jeffreysi1.htm\">IDscaro.NET<\/a><\/li><li><a href=\"http:\/\/www.irmng.org\/aphia.php?p=taxlist&#038;tName=Atys%20jeffreysi\">Interim Register of Marine and Nonmarine Genera<\/a><\/li><li><a href=\"https:\/\/web.archive.org\/web\/20250116074557\/http:\/\/medslugs.de\/E\/Med\/roxaniella_jeffreysi\/Selection.htm\">Medslugs (Med)<\/a><\/li><li><a href=\"http:\/\/www.ncbi.nlm.nih.gov\/Taxonomy\/Browser\/wwwtax.cgi?mode=Undef&#038;name=Roxaniella%20jeffreysi&#038;lvl=0&#038;srchmode=1\">NCBI GenBank<\/a><\/li><li><a href=\"https:\/\/obis.org\/taxon\/140066\">OBIS - Search by Taxon<\/a><\/li><li><a href=\"http:\/\/www.marinespecies.org\/aphia.php?p=taxdetails&#038;id=1342955\">World Register of Marine Species<\/a><\/li><\/ul><\/ul><\/span><p><strong>Citeu aquest article com: <\/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<\/b> (2025) <em>\"Roxaniella jeffreysi\"<\/em> a <em>OPK-Opistobranquis<\/em>. Publicat: 21\/02\/2015. Accedit: 09\/09\/2026. Disponible a (<a href=https:\/\/opistobranquis.info\/ca\/?p=18306>https:\/\/opistobranquis.info\/ca\/?p=18306<\/a>)<\/p><p><\/p><\/div><p><\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Roxaniella jeffreysi\u00a0(Weinkauff, 1866) Nota taxon\u00f2mica:\u00a0Descrita originalment com Bulla (Cylichna) jeffreysi per Weinkauff (1866), a partir de material pr\u00e8viament conf\u00f3s amb altres esp\u00e8cies del g\u00e8nere Bulla. Posteriorment, Monterosato (1884) va erigir el g\u00e8nere Roxaniella per a aquesta esp\u00e8cie; tanmateix, en gran part de la literatura contempor\u00e0nia ha estat tractada com Atys jeffreysi, considerant Roxaniella com a sin\u00f2nim o subg\u00e8nere d\u2019Atys (Oskars et al., 2017). Estudis recents basats en filog\u00e8nia molecular han\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/opistobranquis.info\/ca\/guia\/cephalaspidea\/haminoeoidea\/roxaniella-jeffreysi\/\">Continua llegint<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":5,"featured_media":32493,"parent":26137,"menu_order":2116,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-18306","page","type-page","status-publish","has-post-thumbnail","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/18306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/comments?post=18306"}],"version-history":[{"count":7,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/18306\/revisions"}],"predecessor-version":[{"id":48226,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/18306\/revisions\/48226"}],"up":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/26137"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/media\/32493"}],"wp:attachment":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/media?parent=18306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}