{"id":20723,"date":"2015-11-28T18:52:05","date_gmt":"2015-11-28T17:52:05","guid":{"rendered":"https:\/\/opistobranquis.info\/?page_id=20723"},"modified":"2025-07-25T10:18:48","modified_gmt":"2025-07-25T08:18:48","slug":"favorinus-vitreus","status":"publish","type":"page","link":"https:\/\/opistobranquis.info\/en\/guia\/nudibranchia\/cladobranchia\/aeolidioidea\/facelinidae\/favorinus-vitreus\/","title":{"rendered":"Favorinus vitreus"},"content":{"rendered":"

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Favorinus vitreus<\/em> \u00a0Ortea, 1982<\/h3>\n

\"Favorinus<\/div>
Favorinus vitreus @ Cala Margarida, Palam\u00f3s<\/em> by Enric Madrenas<\/center><\/span>

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WoRMS Taxonomic Information<\/h3>
Current accepted name: Favorinus vitreus<\/em> Ortea, 1982<\/strong><\/div>

Current classification<\/h4>
Superdomain<\/th>Biota<\/a><\/td><\/tr>
Kingdom<\/th>Animalia<\/a><\/td><\/tr>
Phylum<\/th>Mollusca<\/a><\/td><\/tr>
Class<\/th>Gastropoda<\/a><\/td><\/tr>
Subclass<\/th>Heterobranchia<\/a><\/td><\/tr>
Infraclass<\/th>Euthyneura<\/a><\/td><\/tr>
Subterclass<\/th>Ringipleura<\/a><\/td><\/tr>
Superorder<\/th>Nudipleura<\/a><\/td><\/tr>
Order<\/th>Nudibranchia<\/a><\/td><\/tr>
Suborder<\/th>Cladobranchia<\/a><\/td><\/tr>
Superfamily<\/th>Aeolidioidea<\/a><\/td><\/tr>
Family<\/th>Facelinidae<\/a><\/td><\/tr>
Genus<\/th>Favorinus<\/em><\/a><\/td><\/tr>
Species<\/th>Favorinus vitreus<\/em> Ortea, 1982<\/a><\/td><\/tr><\/table>

Classification provided by the World Register of Marine Species (WoRMS). [139941<\/a>]<\/p><\/div>Description
\n<\/strong>This nudibranch reaches up to 18mm in length, but it is usually much smaller; body translucent white (glassy) with the head, rhinophores, oral tentacles and cerata coloured opaque white, there’s also a opaque white band along the body dorsum that could be continuous or not. Cardiac area not prominent and unpigmented. Rhinophores are distinctively colored opaque white distally, translucent (juveniles) or yellowish (adults) basally, and have two small and inconspicuous distinct swelling or bulbs, the distal one coloured white. Cerata are arranged in arches in the first and second groups, the second one nearly a row, while in the third and fourth groups are arranged in rows. The fifth group is a solitary cera. Cerata without cnidosacs, but with a thick reddish spot inside the apex of the cerata in adults, that helps on the identification. Transparent digestive gland in the cerata is not visible because of the opaque white pigment on the skin. Foot translucent, with two anterior corners also unpigmented.<\/p>\n

Biology
\n<\/strong>Original specimens collected on brown algae (Sargasum<\/em> sp. and Cystoseira<\/em> sp.) with small polyzoans and spawns of an undetermined Polyceridae. The animal does not autotomize its cerata when disturbed.<\/p>\n

Etymology<\/strong><\/p>\n