Melongena, commonly known as the crown conchs, is a genus of large sea snails which have an operculum. These are marine gastropod mollusks in the family Melongenidae, the crown conchs and busycon whelks. The shells of Melongena species are extremely variable in shape and sculpture.

Aruba (1993) 10 Florin (front) - Crown Conch Melongena

Front : Cook Islands (1987) $20

This beautiful 1987 Cook Islands banknote's reverse is the conch shell, turtle shell and drum.

The interesting part is the front or obverse with the lady riding the shark.

This is the Popular Famous Legend/Myth/Folklore of Ina and the Shark. This is one version.