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(Gibbula) Magus Linné, 1758 Allegato alla pubblicazione “CatalogoAnnotato Atlante e iconogr Vers.1.0 Gibbula (Gibbula) magus Linné, 1758 Scheda tassonomica: Classis Gastropoda Cuvier, 1797 Ordo Vetigastropoda Salvini-Plawen & Haszprunar, 1987 Superfamilia Familia Trochidae Rafinesque, 1815 Subfamilia Genus Gibbula Risso, 1826 ex Leach ms. Subgenus (Gibbula) s.str. afico deiafico molluschi marini del specie magus (Linné, 1758) [Trochus] subspecie Scheda descrittiva: Sinonimi = Trochus tuberculatus da Costa, 1778 = Trochus bicarinatus Gray J.E., 1834 = Trochus grayanus Philippi, 1846 ri diritti i Tutti Mediterraneo” = Trochus magus var. elata Sandri & Danilo, 1856 = Trochus major Sowerby G.B. II, 1859 = Trochus magus var. alba Jeffreys, 1865 = Trochus magus var. obsoleta Bucquoy, Dautzenberg & Dollfus, 1884 = Trochus magus var. producta Bucquoy, Dautzenberg & Dollfus, 1884 = Gibbula protumida Locard, 1886 = Gibbula magus var. turbinosa Monterosato, 1890 = Trochus magus var. dilatata Chiamenti, 1900 servati2007 © per i rispettiviproprietari. Vietatala duplicazion ? Gibbula bellinii Coen, 1930 = Gibbula vulcanica Coen, 1930 = Gibbula forskadauri Nordsieck, 1982 Descrizione Conchiglia grande, solida e appariscente, caratterizzata dai giri scalariformi appiattiti molto ampi. La sutura è molto pronunciata e forma quasi un canale. L’aspetto generale è quello di una forma conica, con l’apice acuminato e sette giri. I singoli giri presentano una marcata spalla, per cui il profilo è vistosamente gradinato. Sulla spalla di ciascun giro sono presenti delle evidenti tubercolature che si sovrappongono alla costolatura spirale che percorre tutta la superficie della conchiglia. L’apertura è ampia, traversa, la callosità è estesa e l’ombelico è sempre ben evidente, largo e profondo, dotato di scanalatura interna. La colorazione è particolarmente ricca ed esibisce variazioni molto marcate. Il colore di base è bianco-giallastro con strisce rossastre che si irradiano a zig-zag. La superficie interna della conchiglia è bianco perla e attraverso questa si notano strisce rosse. e riproduzione senza espressa Dimensioni È la più grande delle gibbule del Mediterraneo e presenta un diametro di circa 25 mm. Area di distribuzione e habitat Gibbula magus si trova in tutto il Mediterraneo ed è discretamente frequente. Vive su tutti i tipi di substrato nel piano litorale e nell’addiacente zona più profonda autorizzazionescritta. INFO Descrizione originale Riferimenti bibliografici - G. D’Angelo, S. Gargiulo, Guida alle conchiglie mediterranee 1978, p. 86 - Conchiglie del mondo Conoscerle e classificarle Fabbri editori p. 28 Riferimenti on line http://www.liceofoscarini.it/didattic/conchiglie/gasteropodi/specie/GibbulaMagus Comparazione [email protected] su: Note Redattore Scheda di Maria Amato aggiornata al 23/04/2007 Allegato alla pubblicazione “CatalogoAnnotato Atlante e iconogr Vers.1.0 Riferimenti fotografici: afico deiafico molluschi marini del Foto 1 di Sergio Lazzarotto Foto 2 di Claudio Fanelli Foto 3 di Massimiliano Alesi Mediterraneo” Tutti i diritti ri diritti i Tutti Mediterraneo” servati2007 © per i rispettiviproprietari. Vietatala duplicazion e riproduzione senza espressa autorizzazionescritta. INFO su: [email protected] [email protected] su:.
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