Cardiidae:Bivalvia-Bivalves or Two shelled mollusks- Examples are Cardium, Trachycardium, Acanthocardia,Americardia. Common name: "Cockle Shells".
Cardiidae

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Laevicardium serratum(3) 1 5/8”, 1 ¼” & 1 1/8”-colors Lot#15019
Three pairs of Laevicardium serratum(3) 1 5/8”, 1 ¼” & 1 1/8”. Linne, 1758 Collected in 8-10’ of water on sand on July,1987 Tarpum Bay,...
$10.00 Sale: $8.50

Max: 1

Trachycardium egmontianum 1 ¾” or 42.06mm."Albino"#17494
A Near-Gem Trachycardium egmontianum 1 ¾” or 42.06mm. Shuttleworth, 1856.-“Albino” Collected at low tide at night on sand...
$10.00 Sale: $8.50

Max: 1