| The Harpa mollusc shares much in common with volutes and olives. All three families make up the Volutacea superfamily, all of which are active, carnivorous sand burrowers. |
| There seems to have been no distinction in the direction of the volutes, they turning indifferently to the right or to the left. |
| On the other hand, volutes and other genera of univalve shells, usually met with only in tertiary strata, occur. |
| It is not uncommon for both Recent and fossil volutes from southern South America to have a protoconch that is corroded to various degrees by cold acidic waters. |
| It appears in Polynesian tattooing, this love of spirals and volutes. |
| At most they were etched with designs of men and women, as in the example from Olympia, or have two volutes. |
