(not native) Up to 12”, white/gray oblong shell with irregular, wavy edges; found in the intertidal zone.

Up to 3”, the rounded shell is white to purplish black and may be striped with yellow or brown; the flesh has a metallic flavor. It is currently protected in wild habitats.

Up to 10”, 2.5 – 10 lbs. Gaping white oblong shell with concentric rings; siphon too large to withdraw. Depth: 2-3’, found in mud, sand, gravel in subtidal zone.

Up to 5” with round shell; evenly-spaced radiating ridges fanning from hinge; mottled, light brown color; found at 1-2” in sand, mud in intertidal or subtidal zone.

Up to 5”; shell with concentric rings (no radiating ridge lines); yellow to grey/white; 1-1.5’ in the sand, gravel, or cobble in the lower intertidal or shallow subtidal zone.

(not native) Up to 2.5”, oblong shell; typically grey,brown, or mottled and often with what appears to be handpainted designs; some purple on the inside; found at 2-4” in gravel, mud, sand, above the half-tide level.

Up to 3.5” with rounded shell, concentric rings and radiating ridge lines, cream, brown, or mottled; white inside shell; f 6-10” deep in gravel, mud, mid-tide level.

Blue up to 3”, California up to 6”, Mediterranean (non-native) up to 5”. Oblong shell, blue-black or brown; attaches to hard surfaces in the intertidal zone.