Fissurella radiosa

Fissurella radiosa is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

Two subspecies :
 * Fissurella radiosa radiosa Lesson, 1831 (represented as Fissurella radiosa Lesson, 1831 )
 * Fissurella radiosa tixierae Métivier, 1969

Description
The size of an adult shell varies between 18 mm and 55 mm.

Distribution
This species occurs in the Atlantic Ocean off the Falkland Islands and the Straits of Magellan of Argentina and Tierra del Fuego.