{"id":11384,"date":"2013-10-15T23:12:10","date_gmt":"2013-10-15T21:12:10","guid":{"rendered":"https:\/\/opistobranquis.info\/?page_id=11384"},"modified":"2024-07-21T18:14:29","modified_gmt":"2024-07-21T16:14:29","slug":"tambja-marbellensis","status":"publish","type":"page","link":"https:\/\/opistobranquis.info\/en\/guia\/doridida\/doridoidei\/polyceroidea\/tambja-marbellensis\/","title":{"rendered":"Tambja marbellensis"},"content":{"rendered":"

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Tambja marbellensis<\/em>\u00a0 Schick & Cervera, 1998<\/h3>\n

\"Tambja<\/div>
Tambja marbellensis @ Granada<\/em> by Enric Madrenas<\/center><\/span>

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WoRMS Taxonomic Information<\/h3>
Current accepted name: Tambja marbellensis<\/em> Schick & Cervera, 1998<\/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>Doridida<\/a><\/td><\/tr>
Infraorder<\/th>Doridoidei<\/a><\/td><\/tr>
Superfamily<\/th>Polyceroidea<\/a><\/td><\/tr>
Family<\/th>Polyceridae<\/a><\/td><\/tr>
Subfamily<\/th>Nembrothinae<\/a><\/td><\/tr>
Genus<\/th>Tambja<\/em><\/a><\/td><\/tr>
Species<\/th>Tambja marbellensis<\/em> Schick & Cervera, 1998<\/a><\/td><\/tr><\/table>

Classification provided by the World Register of Marine Species (WoRMS). [140051<\/a>]<\/p><\/div>Taxonomic note:<\/strong>\u00a0In the molecular analysis performed by Pola et al. (2014) Tambja marbellensis<\/em> forms a very well supported clade\u00a0that includes T. fantasmalis<\/em>, T. crioula<\/em>\u00a0and\u00a0T. simplex<\/em>, with\u00a0T. marbellensis<\/em>\u00a0as a sister species of the rest.<\/p>\n

Description
\n<\/strong>Limaciform shaped body up to 45 mm in length (Pola et al., 2014) with a widened head. The color of the adult specimens is grayish-blue (or greenish) very dark, almost black, although the juveniles are colored light green. It has a yellow dorsal longitudinal band that begins between\u00a0the rhinophores and reaches the gill crown on the back, following\u00a0a dorsal median crest (L. S\u00e1nchez-Tocino, 2016). Behind each rhinophore begins a yellow stripe\u00a0that ends in the gills, only visible in the adult specimens. Two other yellow stripes are born ahead of \u200b\u200bthe gills and run parallel to the edge of the notum, ending in the post-gill area. The animal’s back is smooth, with some scattered spicules, and has a smooth, yellow border with a darker central line. The dorsum, the sides of the body and the pointed\u00a0tail have a series of yellow stripes of different length, which increase in number and complication with the age of the animal but which share the design of the darker central line. In adult specimens rhinophores and gills are dark, almost black, whereas in juvenile specimens these organs are dark blue (L. S\u00e1nchez-Tocino, 2016). The foot has in its anterior part a series of small and rounded oral glands, and is bordered by a yellow band that joins with the edge of the mantle with a line of the same color that reaches to the tail, which\u00a0protrudes the notum . The rhinophores are retractile, lamellated (with about 25 lamellas each) and have a conical\u00a0shaped apex. Around the base there are smooth rhinophoric sheaths, colored dark blue with a yellow border. It has two short and dorsoventrally flattened oral tentacles. Among the rhinophores and oral tentacles, on each side of the body, there are lamellar structures, also present in other species of the genus (Yonow 1994; Pola et al., 2005; Pola et al., 2006). The gills are made of 5 dark blue tripinnate leaves that have the yellow rachis outside, are not retractable and are located at the back of the notum, surrounding the anal papilla. The three most central gill leaves are more developed than the lateral ones.<\/p>\n

Biology
\n<\/strong>It lives in rocky bottoms, the juveniles are found below\u00a0stones, on bryozoans Sessibugula barrosoi<\/em> of which they probably feed, at least during its juvenile stage. The specimens have been observed between 3 and 20 meters deep and it is considered a rare species. Due to its characteristics, habitat and distribution it may be confused with the species Tambja ceutae<\/em>, but Tambja marbellensis<\/em> lacks the characteristic conical papillae that border the mantle and tail of T. ceutae<\/em> and has a brown streak in the middle of all of the body yellow lines, a trait absent in T. ceutae<\/em>. In addition, T. ceutae<\/em> has the inner rachis of the gill colored in\u00a0yellow, as well as two large dark gray spots located behind the rhinophores.<\/p>\n

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