Arcuatula arcuatula, the arcuate mussel, is a species of bivalve in the family Mytilidae.https://www.sealifebase.se/summary/Arcuatula-arcuatula.html The scientific name of the species was first validly published in 1844 by Hanley.https://marinespecies.org/aphia.php?p=taxdetails&id=505953
References