scallop sea shell, sketch style. realistic hand drawing of saltwater shell, clam, conch.

seashell shell scallop ocean shellfish clam conch vector sea dot seafood sketch marine engraving exotic drawing hand tropical mollusks line summer graphic isolated aquatic animal cockleshell travel underwater aquarium white beach nautical drawn seashore wildlife oceanic food seaside engraved symbol saltwater fauna souvenir ecology black coast vacation etching illustration vintage realistic diving tattoo resort texture grunge art water summertime tourism icon stamp natural nature holiday shape retro sink etched sign old ornate artwork life element single decoration object decorative