bleached cluster coiled shells colored coloured exoskeleton faded gastropods land snails metal fence post Molluscs slimy small snail snails spirally coiled shells terrestrial snails white chitin India krayker limpets macro malacology mantle mantle cavity Marine organism mollusc Mollusca mollusk mother of pearl plates shell shells spicules spiral Spirally-coiled shells calcium carbonate coiled crawling eye stalks eyes friction garden snail gastropoda helix aspersa herbivorous locomotion logarithmic spiral movement mucus muscular foot olfactory organs ommatophores radula retractable retracting ripple rippling skin Slime spirally tentacles textured surface unsegmented rock sea shells sharp shells on the rock spike spine aquatic beach coast corals design marine nature ornament ornamental protective sand shore strombidae sun and sea animal aquatic life blue conch decorative Hermit Crab Incredible India pointed pointy sands sea sea life Sea snail sky spiral shell undersea abstract aged ammonite ancient antique Archeology background biology circle closeup coil colorful concept creation detail fill fossil graphic hi-res illustration image isolated life lines New old original pattern prehistoric render science style swirl texture unique vector water hi res