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The exact systematics of nudibranchs are a topic of recent revision. Traditionally, nudibranchs have been treated as the order Nudibranchia, located in the gastropod mollusc subclass Opisthobranchia (the marine slugs: which consisted of nudibranchs, sidegill slugs, bubble snails, algae sap-sucking sea slugs, and sea hares). [44]
The name "sea slug" is also often applied to the sacoglossans (clade Sacoglossa), the so-called sap-sucking or solar-powered sea slugs which are frequently a shade of green. Another group of main gastropods that are often labeled as "sea slugs" are the various families of headshield slugs and bubble snails within the clade Cephalaspidea.
Costasiella kuroshimae (also known as a leaf slug, sea sheep, or leaf sheep) is a species of sacoglossan sea slug. Costasiella kuroshimae are shell-less marine opisthobranch gastropod mollusks in the family Costasiellidae. [1] Despite being animals, they indirectly perform photosynthesis, via kleptoplasty. [2]
Sea clown triopha Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Order: Nudibranchia Superfamily: Polyceroidea Family: Polyceridae Genus: Triopha Species: T. catalinae Binomial name Triopha catalinae (Cooper, 1863) Triopha catalinae, commonly known as the sea clown triopha or sea clown, is a species of colorful sea slug called a nudibranch. Sea ...
In one large group of sea slugs, the gills are arranged as a rosette of feathery plumes on their backs, which gives rise to their other name, nudibranchs. Some nudibranchs have smooth or warty backs with no visible gill mechanism, such that respiration may likely take place directly through the skin.
Melibe is a genus of sea slugs, nudibranchs, marine gastropod mollusks in the family Tethydidae. [2]Most nudibranchs are carnivores, but their prey is usually sessile or slow-moving animals such as sponges or bryozoans.
Flabellina is a genus of sea slugs, specifically aeolid nudibranchs. These animals are marine gastropod molluscs in the family Flabellinidae. [3] Taxonomic history
Cryptobranch dorid nudibranchs (previously known as the taxon Cryptobranchia), are nudibranch sea slugs within the clade Doridacea. These slugs are called "cryptobranch," meaning "hidden gill", because they are able to retract their gills into a gill pocket, in contrast to nudibranchs in the traditional group phanerobranchs (or Phanerobranchia), which taxon is probably paraphyletic (in other ...