Venus nux is a species of saltwater clam.

They are marine bivalve molluscs in the family Veneridae, sometimes known as the venus clams.

[1][2][3] Venus nux can reach a size of 30–45 mm (1.2–1.8 in).

The shells are globular, with dense, concentric ribs on the surface.

[1][4] Right and left valve of the same specimen: Fossil (Pliocene) The species is widespread in the Mediterranean Sea and the Atlantic littorals of Portugal and Spain.