See text Donax is a genus of small, edible saltwater clams, marine bivalve molluscs with highly variable color patterns.

The genus is sometimes known as bean clams or wedge shells; however, Donax species have different common names in different parts of the world.

Species of Donax live in the swash zone, sometimes in high concentrations, vertically aligned in the sand on exposed beaches, on tropical and temperate coasts worldwide.

[2] These coquina clams are found extensively on the east coast beaches of Trinidad (Mayaro) and widely available in Venezuela.

These clams can use the action of waves to move themselves up and down the beach, quickly burrowing into a new location before they can be swept away (the so-called "dance of the coquina").