| Cadlina laevis | |
|---|---|
 | |
| Fedafjord, Norway. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Nudibranchia |
| Suborder: | Doridina |
| Superfamily: | Doridoidea |
| Family: | Cadlinidae |
| Genus: | Cadlina |
| Species: | C. laevis |
| Binomial name | |
| Cadlina laevis Linnaeus, 1767 | |
Cadlina laevis, common name the white Atlantic cadlina, is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Cadlinidae.
The white Atlantic cadlina is found, dispersed in widely separated populations, on rocky bottoms from the low tide zone to depths of 800 m, ranging from the Arctic to the North Atlantic (Canadian Arctic Archipelago, Spitsbergen, Iceland, Greenland). Along the North American coast its range reaches as far south as Massachusetts. It also occurs along the European coast from Norway to northern Spain. The reporting of a Cadlina with yellow markings near the Portuguese west coast could be an unnamed species of Cadlina. [1]
Cadlina laevis has a flattened, white, semitransparent, oval mantle. There appear to be two color varieties: one showing bright yellow spots near the thin, yellow margin on the back, the other is milky white and lacks spots. [2] There is also an intermediate form with milky yellow spots. [3] These forms do not seem to occur together: the yellow-spotted form lives in deeper water, whereas the other form lives intertidally.
The short, cephalic tentacles are comblike, and the short, tripinnate gills at the back are cryptobranchiate, i.e. they can retract at the same time in a common branchial pit.
The observed length of these sea slugs varies between 25 mm [4] and 32 mm.[ citation needed ]
The maximum recorded length is 17 mm. [5]
Minimum recorded depth is 0 m. [5] Maximum recorded depth is 250 m. [5]
This nudibranch preys on encrusting slime sponges, such as Halisarca dujardini or, in deeper waters, the sponge Dysidea fragilis . They are reported to breed at the end of winter. The penis of the male is encrusted with tiny chitinous hooks. They reproduce by direct development. When the eggs hatch after ca. fifty days, they give small slugs, forgoing the planktonic larval stage. The veliger phase occurs within the eggs.
Chromodorididae, or chromodorids, are a taxonomic family of colourful, sea slugs; dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. “Chromodorid nudibranchs are among the most gorgeously coloured of all animals.” The over 360 described species are primarily found in tropical and subtropical waters, as members of coral reef communities, specifically associated with their sponge prey. The chromodorids are the most speciose family of opisthobranchs. They range in size from <10mm to over 30 cm, although most species are approximately 15–30 mm in size.
Diaulula sandiegensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.
Cadlina luteomarginata, common name the yellow-edged cadlina, is a species of colorful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Cadlinidae.
Peltodoris nobilis, commonly called the sea lemon, false sea lemon, or the noble dorid, is a species of colorful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.
Doriprismatica sedna is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Hypselodoris infucata is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Cadlina is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks historically classified in the family Chromodorididae. Recent research by R.F. Johnson in 2011 has shown that Cadlina does not belong to the family Chromodorididae. She has therefore brought back the name Cadlinidae from synonymy with Chromodorididae. The family Cadlinidae also includes the genus AldisaBergh, 1878.
Cadlina flavomaculata, common name the yellow-spot cadlina, is a species of colourful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Cadlinidae.
Doris verrucosa is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Dorididae.
Goniobranchus vibratus, common name trembling nudibranch, is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Felimare bayeri is a species of colorful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae. It was described by Eveline and Ernst Marcus in 1967.
Felimare cantabrica is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Ziminella salmonacea, common name the salmon aeolis, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Paracoryphellidae.
Tyrinna evelinae is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Cadlina japonica is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.
Cadlina rumia is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae.
Trapania maculata is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.
Trapania tartanella is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.
Felimare marci is a species of sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae. Placement of this species in Felimare is based on molecular (DNA) evidence.
Dendronotus robustus is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.
