Species:
Pygmaepterys circinatus >
Genus:
Pygmaepterys >
Subfamily:
Muricopsinae >
Family:
Muricidae >
Superfamily:
Muricoidea >
Order:
Neogastropoda >
Subclass:
Caenogastropoda >
Class:
Gastropoda >
Phylum:
Mollusca >
Kingdom:
Animalia >
Unranked:
Biota >