Cadlina laevis (Linnaeus, 1767)
Cadlina laevis (Linnaeus, 1767)
|Classification according to Bouchet et al. (2017)|
Taxonomic source: World Register of Marine Species (AphiaID: 139134).
- Cadlina boscai Tejedo, 1994
- Cadlina repanda (Alder & Hancock, 1842)
- Doris laevis Linnaeus, 1767 (original)
- Doris marginata Montagu, 1804
- Doris obvelata Müller O.F., 1776
- Doris planulata Stimpson, 1853
- Doris repanda Alder & Hancock, 1842
This species of doridacean can reach about 30 mm in length. The body is oval, very flat and completely white except the mantle margin that in some specimens can be yellow due to the presence of numerous spots of the same color. All the dorsum is covered with small rounded tubercles of two different sizes. Occasionally, larger tubercles form a sort of circle near the dorsum margins. The rhinophores are short and white, semitransparent in the alaminar base and more opaque or slightly dark in the laminar zone. The laminar area of the rhinophores has 13-15 white lamellae and has a club shaped apex. The rhinophoric sheath is not very high and also has rounded tubercles on its upper edge. The gill leaves are also white. The mouth has a pair of short white palps. The white foot is wide and in its posterior side turns into a triangular tail protruding below the rear side of the mantle. The dorsal region of the tail also has rounded tubercles and the margin can be yellowish.
This species can live on rocky substrates from the intertidal zone to several hundred meters deep. It has been cited on different sponges and indicated that feeds on Dysidea fragilis, Hemimycale columella and fouling demosponge Halisarca dujardini. As a very interesting detail of its biology, it has been observed mating at the end of winter, where individuals, after copulation, produce ovigerous coiled ribbons of 2.5 mm in height. The eggs are pale cream coloured and very large, up to 370 microns, included in spherical capsules of about 600 microns; development is direct because the stage veliger larva occurs within the capsule, and hatching, which occurs about 50 days after the spawn, renders crawling juveniles about 800 microns long (Thompson, 1967).
- Laevis. From Latin “laevis” or “levis”, smooth, flat, even.
This species is distributed throughout the North Atlantic, the Arctic, Iceland, Greenland, the coast of North America to Massachusetts and European coasts, from Norway to the Iberian Peninsula and the western Mediterranean. In the Iberian Peninsula it has been cited in Galicia, Portugal, the Strait of Gibraltar, the Levantine region, Catalonia and the Balearic Islands. In the Catalan coast is a really uncommon species that has been observed in Cadaqués and the Medes islands.
| : OBIS|
: GROC 2010-2011
: Enric Madrenas
: João Pedro Silva
: Bernard Picton
| : OPK|
: Manuel Ballesteros.
: M@re Nostrum
: Altres fonts
: Marine Regions
- "Estran 22" Faune et flore de la zone de balancement des marées en Côtes d'Armor
- Biodiversity Heritage Library
- Encyclopedia of Marine Life of Britain and Ireland
- Flickr pictures
- Interim Register of Marine and Nonmarine Genera
- NCBI GenBank
- OBIS - Search by Taxon
- Scottish Nudibranchs
- World Register of Marine Species
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