Runcina zavodniki Thompson T., 1980
Superdomain | Biota | |
Kingdom | Animalia | |
Phylum | Mollusca | |
Class | Gastropoda | |
Subclass | Heterobranchia | |
Infraclass | Euthyneura | |
Subterclass | Tectipleura | |
Order | Runcinida | |
Superfamily | Runcinoidea | |
Family | Runcinidae | |
Genus | Runcina | |
Species | Runcina zavodniki T. E. Thompson, 1980 | |
Classification according to Bouchet et al. (2017) Taxonomic source: World Register of Marine Species (AphiaID: 141414). |
Description
Very small in size, the maximum reported length is 3.5mm. The body is elongated and streamlined, coloured black, including the foot and the three gills. One individual was found to be pale orange-brown. Three pinnate gills were present, and each one bore regular pinnules on either face. No shell is present.
Biology
Several specimens were found among mixed algae (especially Ulva rigida) but many more were found among the rootlet system of the hydroid Eudendrium in the shallow sublittoral (down to 2 m). They look and behave like triclad turbellarians.
Etymology
- Runcina. From Latin “runcina”, carpenter’s plane, a tool used to smooth the wood’s surface.
- Zavodniki. In honour of Dr. D. Zavodnik, Director of the Rovinj Institute, Rovinj, Croatia.
Distribution
In Croatia it has been found in several localities, however, the species of this genus are poorly studied due to its small size and crypsis on the substrate they live on, so presumably they have a more general distribution.
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Abundance
Western Mediterranean: | ☆☆☆☆☆ |
Eastern Mediterranean: | ★☆☆☆☆ |
Atlantic Ocean: | ☆☆☆☆☆ |
More pictures
Bibliography
Further reading
Cite this article as:
Pontes, Miquel, Manuel Ballesteros, Enric Madrenas (2023) "Runcina zavodniki" in OPK-Opistobranquis. Published: 07/01/2019. Accessed: 26/03/2023. Available at (https://opistobranquis.info/en/3CRPw)