collection of various shells of mollusks cutout

background bivalve buccinidae burgundy cardiidae cerith cerithiid clam cockle collage collection conch cone conidae coninae conus cut cutout edible empty gastropod gastropoda helix isolated lot many mollusc mollusk murex muricidae natural out quahog rapana rock roman scallop sea seashell set shell shellfish slug snail sorbeoconcha tower turritella various whelk white