Thalassianthus aster is a species of sea anemone in the family Thalassianthidae.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 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.
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