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Wales Beach Guide

Sand Gaper (Mya arenaria)

Helical Shells
Large Necklace ShellCommon Whelk
Red WhelkCommon Spindle Shell
Common WinkleFlat Periwinkle
Dog WhelkNetted Dog Whelk
Sting WinkleGrey Top Shell
Painted Top ShellPurple Top Shell
Thick Top ShellTower Shell
Needle ShellCommon Wendletrap
Acteon ShellPelican's Foot Shell
Bivalves
CockleDog Cockle
Prickly CockleNorwegian Cockle
Pullet Carpet ShellCross-cut Carpet Shell
Banded Carpet ShellSmooth Clam
Iceland CyprinaCommon Mussel
Otter Shell
Sand Gaper
Blunt GaperCommon Piddock
American PiddockWhite Piddock
Blunt TellinRayed Artemis
Smooth ArtemisWarty Venus
Peppery Furrow ShellEdible Oyster
Portuguese OysterSaddle Oyster
King ScallopQueen Scallop
Variegated ScallopHunchback Scallop
Tiger ScallopStriped Venus
Thick Trough ShellCut Trough Shell
Rayed Trough ShellBanded Wedge Shell
Faroe Sunset ShellThin Tellin
Baltic TellinBean Tellin
Pod RazorRazor
Bean RazorCurved Razor
Everything Else
Bonnet ShellCommon Limpet
Black Footed LimpetChina Limpet
Slipper LimpetCommon Tusk Shell
Cowrie ShellEuropean Cowrie
Sand Gaper

Shell is roughly egg-shaped, up to 5 inches long. Easily distinguished from the Otter shell by its more irregular shape, and 'gape' to one side when both valves of the shell are put together. Shell can be white, but usually dirty orange, brown or black. The left valve has a large projection near the hinge (top, left).


Found at : Moreton Beach, Wirral