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Nudibranchs are a group of soft-bodied, marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown," "marigold," "splendid," "dancer," "dragon," or "sea rabbit." Currently, about 3,000 valid species of nudibranchs are known.
Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are actually gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.
Onchidoridoidea is a taxonomic superfamily of sea slugs, dorid nudibranchs, marine gastropod molluscs.
The Tritoniidae are a taxonomic family of dendronotid nudibranchs, shell-less marine gastropod molluscs. This family includes some of the largest known nudibranchs, with the NE Atlantic species Tritonia hombergii reaching 20 cm in length.
Flabellina is a genus of sea slugs, specifically aeolid nudibranchs. These animals are marine gastropod molluscs in the family Flabellinidae.
Amanda armata, the night sky nudibranch, is a species of sea slug, specifically an aeolid nudibranch. It is a marine gastropod mollusc in the family Facelinidae.
Diaulula is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Discodorididae.
Paracoryphella is a genus of sea slugs, specifically aeolid nudibranchs, marine gastropod molluscs in the family Paracoryphellidae.
Phestilla melanobrachia is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Trinchesiidae.
Phestilla is a genus of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the family Trinchesiidae. Its members are unusual in feeding on hard corals, unlike other members of the family Trinchesiidae which feed on hydroids. Adult Phestilla have no cnidosacs. This genus has been investigated using DNA phylogeny and undescribed species exist.
Flabellina dana is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Tergipes tergipes is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Tergipedidae.
Tenellia futairo is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Fionidae.
Jorunna parva, popularly known as "sea bunny", is a species of dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae. It is found along the coasts of Korea, Japan, Palau, Philippines, Indonesia, Papua New Guinea, Australia, South Africa, Seychelles, and Tanzania. The species was first described by Kikutaro Baba. The resemblance of Jorunna parva's rhinophores to a rabbit's ears and its other features facilitated a surge in popularity on Twitter throughout Japan in 2015. The rhinophores are classified as sensory organs for the act of chemoreception. The rhinophores indeed enhances detection efficiency and allows Jorunna parva to sense its surrounding environment. The receptors allow these species to locate their mates and forage for food resources as well. Sea bunnies, like many other nudibranchs, eat sponges, which contain toxins. Those toxins are used for cancer treatments. A chemical compound called "jorumycin" has been found in a related species, Jorunna funebris. This compound is a tetrahydroisoquinoline, meaning it contains the same basic chemical backbone as an antitumor drug called PM00104, or Zalypsis, which is meant to be injected intravenously. Sea bunnies are considered to be one of 16 species in the family Discodorididae. The fur is called caryophyllidia, which is composed of fleshy protuberances called papillae, as well as spicules, which are used for sensory functions.
Jorunna pardus is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.
Dirona picta, common name colorful dirona, is a species of sea slug, an Eastern Pacific Ocean nudibranch, a marine, opisthobranch gastropod mollusk in the family Dironidae.
"The name Diaulula sandiegensis applies to the southern species and Diaulula odonoghuei Steinberg, 1963 to the northern speciesDiaulula boreopacifica'''
Phestilla sibogae is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Trinchesiidae. The species feeds on the hard coral genus Porites.
Phestilla minor is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Trinchesiidae. The species feeds on the hard coral genus Porites and has been found to represent a species complex.
References
- ↑ Hadfield, M. G. 1963. Coryphella parva n. sp., a new nudibranch mollusc from the Øresund. Videnskabelige Meddelelser fra Danske Naturhistorisk Forening 125:371-376, pl. 12.
- ↑ Gofas, S. (2015). Flabellina parva (Hadfield, 1963). In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-11-02