Runcina ferruginea (Kress, 1977)
Class: Gastropoda Cuvier, 1797
Subclass: Heterobranchia J.E. Gray, 1840
Clade: Euthyneura Spengel, 1881
Clade: Euopisthobranchia Jörger et al., 2010
Clade: Runcinacea Burn, 1963
Superfamily: Runcinoidea H. Adams & A. Adams, 1854
Family: Runcinidae J.E. Gray, 1857
Genus: Runcina Forbes Hanley, 1851
Species: Runcina ferruginea Kress, 1977
- Runcina zavodniki Thompson T., 1980
This is a species whose specimens rarely exceed 4 mm. The body is narrow and elongated, limaciforme, with homogeneous reddish-brown coloration that honors the specific name. The center of the back can be somewhat darker due to the viscera. In some specimens the color can be blackish or orange, so it can be confused with small turbellarians (triclades). None of the specimens shows dark or light spots. The head region has light side lobes. The eyes are located near the front of the cephalic area. The foot is colored slightly lighter than the body, with long rounded tail. Beneath the rear of the notum there are 3 small semitransparent unipinnate gills.
No details are known of its biology. Like other species of Runcina it is believed to have herbivore eating habits.
- Runcina. From Latin “runcina”, carpenter’s plane.
- Ferruginea. From Latin, feminine singular of “ferrūgineus”, meaning “rust colored”.
The specific name clearly identifies the reddish coloration of this species. It has Atlantic and Mediterranean distribution. In the Iberian Peninsula it is known from the Cantabrian coast, Galicia, coast of Portugal, Gibraltar Strait, and south eastern coast. In Catalonia it is cited based on a single specimen collected in Es Caials (north Costa Brava).
| : OBIS|
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
| : OPK|
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions
References for the species: Runcina ferruginea
- Cantabria: Ortea and Moro (1999).
Galicia: Ortea and Urgorri (1981b), Fernández-Ovies (1983).
Portugal: García-Gómez et al. (1991), Calado et al. (1999), Ortea and Moro (1999).
Gibraltar: García-Gómez et al. (1989), Cervera, García-Gómez and García (1991), Sánchez-Moyano et al. (2000).
Levante: Marín and Ros (1987).
Catalunya: Ballesteros (datos no publicados) [Blanes].
Sources: Cervera et al., 2004, Ballesteros, 2007 & 2016, McDonald, 2006 and other sources.
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