aquatic beach Busycon carica coast dextral gastropod gastropod shell knobbed whelk marine marine gastropod molluscs migratory mollusk mollusks ocean sand sea Sea snail sea snails sea-snail seasnail shell Shell on the beach shore splash water wave welk whelk accident barren industrial oil oil spill oil tanker pollute pollution spill spillage animal aquatic life blue conch corals decorative exoskeleton Hermit Crab India krayker mantle mollusc Mollusc shell Mollusca Molluscs mother of pearl nature ornamental pointed pointy sands sea life sea shells seashell sky snail spiral shell undersea closeup macro coiled design Incredible India ornament protective sharp spike batlic Poland decoration keepsake pattern souvenir spiral texture Crustacean swirl