This superfamily includes the murex snails, the chank snails, the true whelks, the dove snails, the crown conchs and busycon whelks, the spindle and tulip snails, the volutes and olives, the harp snails, the margin snails, the miters, and others.
Shell description
It is hard to generalize about such a diverse group, but the shell of these snails has an oval aperture, and a noticeable siphonal canal.
Bouchet, Philippe & Jean-Pierre Rocroi 2005. Classification and Nomenclator of Gastropod Families. Malacologia 47(1-2): 1-397.
Ponder, WF & DR Lindberg 1997. Towards a phylogeny of gastropod molluscs: an analysis using morphological characters. Zool. J. Linn. Soc. 119(2): 83-265.