Laevicardium

Laevicardium
A whole preserved specimen of Laevicardium oblongum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Cardiida
Family: Cardiidae
Genus: Laevicardium
Swainson, 1840

Laevicardium, common named egg cockles, is a genus of saltwater clams or cockles, marine bivalve molluscs in the family Cardiidae, the cockles. They are unusual among the cockles in that they have smooth, rounded, egg-shaped valves.