''Thalassianthus aster'' is a species of

sea anemone Sea anemones are a group of predation, predatory marine invertebrates of the order (biology), order Actiniaria. Because of their colourful appearance, they are named after the ''Anemone'', a terrestrial flowering plant. Sea anemones are classifi ...

in the family

Thalassianthidae Thalassianthidae is a family of sea anemones that contains the genera ''Actineria'', ''Cryptodendrum,'' ''Heterodactyla'', and ''Thalassianthus''.World Register of Marine Species. (2016). Thalassianthidae Milne Edwards, 1857. http://www.marinesp ...

.World Register of Marine Species. (2013). Thalassianthus aster Rüppell & Leuckart, 1828. http://www.marinespecies.org/aphia.php?p=taxdetails&id=291206 It dwells in a number of habitats, even existing symbiotically on top of other motile invertebrates such as hermit crabs in a relationship similar to the pom pom crab. Its

nematocysts A cnidocyte (also known as a cnidoblast or nematocyte) is an explosive cell containing one large secretory organelle called a cnidocyst (also known as a cnida () or nematocyst) that can deliver a sting to other organisms. The presence of this c ...

contain a Type-II Na+-channel toxin known as δ-TLTX-Ta1a according to the currently developing systematic nomenclature for peptide and protein toxins from sea anemones. File:Calcinus u Thalassianthus.JPG, On a hermit crab File:Thalassianthus_(aster).jpeg, Red color morph File:Thalassianthus_(aster),_tentáculos.jpeg , Stinging nematocysts

References

Animals described in 1828 Thalassianthidae {{Actiniaria-stub