Anthaster

{{Short description|Genus of starfishes}}

{{Speciesbox

| image = Anthaster valvulatus P1192613.JPG

| image_caption =

| genus = Anthaster

| parent_authority = Döderlein, 1915 {{ cite web |url=http://www.marinespecies.org/asteroidea/aphia.php?p=taxdetails&id=292763 |author=C.L. Mah |title=Asteroidea taxon details for Anthaster Döderlein, 1915 |year=2010 |work=World Asteroidea Database |accessdate=June 29, 2011}}

| species = valvulatus

| authority = (Müller & Troschel, 1843)

}}

Anthaster valvulatus is a species of sea stars in the family Oreasteridae. It is the sole species in the genus Anthaster. While its common name is the brick red seastar,{{Cite web|url=https://www.sa.gov.au/__data/assets/pdf_file/0015/20184/EIS_Appendices_A_to_L.pdf|title=GUIDELINES For the preparation of an ENVIRONMENTAL IMPACT STATEMENT For the PORT BONYTHON BULK EXPORT PORT FACILITY|date=2012-08-01}} individuals also occur in purple, orange and multicoloured combinations of these colours.{{Cite web|url=http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:57e9ab8f-b0cb-4996-a273-c4659981ff7a|title=Anthaster valvulatus {{!}} Atlas of Living Australia|website=bie.ala.org.au|language=en-AU|access-date=2017-06-15}}