Taringa faba

Taringa faba Ballesteros, Llera & Ortea, 1985

Taringa faba by Manuel Ballesteros
Taxonomy
Class: Gastropoda  Cuvier, 1797 
Subclass: Heterobranchia  J.E. Gray, 1840 
Clade: Euthyneura  Spengel, 1881 
Clade: Nudipleura  Wägele & Willan, 2000 
Order: Nudibranchia  Cuvier, 1817 
Suborder: Euctenidiacea  Tardy, 1970 
Infraorder: Doridacea  Thiele, 1931 
Superfamily: Doridoidea  Rafinesque, 1815 
Family: Discodorididae  Bergh, 1891 
Genus: Taringa  Er. Marcus, 1955 
Species: Taringa faba Ballesteros, Llera & Ortea, 1985

Description
Specimens of this species can reach 37 mm in length. The body is rather flattened, with different shades of brown, deppending on the specimens, with irregularly laid dark spots, and a few scattered white spots. The different shades of the specimens are due to the different density of brown scores that provide the body color. The mantle is very wide and the whole surface is covered with caryophyllic tubercles arranged very tightly; these are cylindrical and smaller in the edges of the mantle, some with a sharp tip. Bigger caryophyllic tubercles are located in the center of the mantle, and are somewhat stalked at the base. They all have a crown of numerous spicules slightly protruding from its upper end. The rhinophores are yellowish and have fine brown pigment, both in the lamellae and the alaminar base. The apex of the rhinophores is club shaped. The rhinophoric sheath is rather high and its upper edge has 8-10 lobulations also with caryophyllic tubercles. The gill consists of 6 tripinnate yellowish leaves decorated with fine brown scores and a whitish spine. The gill leaves, when extended, stand upright and somewhat tightened, they are fully retractable. The anal papilla, in the center of the gill leaves, is of the same color and has a cylindrical shape, with 9-10 rounded lobes on the upper edge. The branchial sheath has 18 to 20 lobes on its upper edge, also provided with caryophyllic tubercles. The foot is relatively narrow compared to the mantle, it is coloured yellow with small brown spots and its anterior border is furrowed and split. The underside of the mantle (hiponotum) and flanks of the foot have larger brown spots and in the hiponotum there are numerous spicules that can be seen by transparency. The mouth has a pair of short yellow palps with some brown spots that can also appear around the mouth hole. When the animal moves, the rear part of the foot may protrude slightly behind the mantle.

Anatomical Note: Taringa species of European waters (T. armata, T. faba, T. millegrana, T. Pinoi and T. oleica) are morphologically very similar and only an study of its internal anatomy, including the radula, allows to distinguish them.

Biology
Very few details of the biology of this species are known due to the lack of records from its presence. The feeding habits are unknown. It is located under stones with sponges from very shallow depths (Ballesteros et al. 1984). Animals move very slowly and acquire a nearly circular shape when at rest. Spawns have been observed in the month of June, in the form of a white spirally wound and somewhat undulated ribbon, of two and a half turns, about 20 mm diameter and 4 mm ribbon width. The eggs are white, are placed very tightly and in several layers, each one having a diameter of about 100 microns.

Etymology

  • faba = Refers to the bean shape (from Latin faba-ae= bean) of the copulatory bag of the genital tract.

Distribution
This species is only known from the Catalan coast, where it has been cited in Sant Feliu de Guíxols, Llafranc, Cala Sant Francesc (Blanes), Sitges and Cubelles (type locality for the species).

Known georeferenced records of the species: Taringa faba (z-200).
Sources:
: OBIS : OPK
: GROC 2010-2011 : VIMAR
: Enric Madrenas : Manuel Ballesteros.
: João Pedro Silva : M@re Nostrum
: Bernard Picton : Other sources
: GBIF.ORG : Marine Regions

Abundance

        Western Mediterranean:0 Stars
        Eastern Mediterranean:0.0 Stars
        Atlantic Ocean:0.0 Stars
This chart displays the observation probability for Taringa faba
based on our own records.

More pictures

Bibliography

Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Ballesteros, Manuel, Enric Madrenas, Miquel Pontes et al. (2012-2017) "Taringa faba" in OPK-Opistobranquis, Published: 29/08/2012, Accessed: 19/08/2017 at (http://opistobranquis.info/en/NeAPw)

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