| Roboastra gracilis | |
|---|---|
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| Roboastra gracilis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Nudibranchia |
| Suborder: | Doridina |
| Superfamily: | Polyceroidea |
| Family: | Polyceridae |
| Genus: | Roboastra |
| Species: | R. gracilis |
| Binomial name | |
| Roboastra gracilis | |
Roboastra gracilis is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae. [2]
This sea slug is found in the tropical western Pacific Ocean.
Robastra gracilis is a relatively small nudibranch reaching only 20–25 mm (2-2.5 cm) in length.
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.
Nembrotha is a genus of sea slugs, nudibranchs, marine gastropod molluscs in the family Polyceridae.
Melibe viridis is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Tethydidae.
Nembrotha kubaryana, also known as the variable neon slug or the dusky nembrotha, is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Polyceridae.
Embletoniidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Nudipleura. There are no subfamilies in the Embletoniidae.
Tyrannodoris europaea, is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Tyrannodoris luteolineata is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Roboastra is a genus of sea slugs, polycerid nudibranchs, marine gastropod molluscs in the family Polyceridae. They are carnivorous, feeding on other species of nudibranch.
Tyrannodoris leonis is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Roboastra arika is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Tyrannodoris tigris is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusk in the family Polyceridae.
Microchlamylla gracilis, sometimes known by the common name slender eolis, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
Thuridilla gracilis is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.
Tyrannodoris is a genus of sea slugs, polycerid nudibranchs, marine gastropod molluscs in the family Polyceridae. Most of these species were formerly considered to belong to the genus Roboastra. They are carnivorous, feeding on other species of nudibranch, especially similar looking species of Tambja.
Tyrannodoris caboverdensis is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Tyrannodoris ricei is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Roboastra rubropapulosa is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
Roboastra tentaculata is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.
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