paper nautilus eggcase line . argonaut shell in in black and white. marine ocean animal seashell

paper nautilus argonaut shell seashell eggcase illustration ocean nature sea natural marine white animal beautiful beach octopus mollusk striped underwater spiral cephalopod unusual monochrome nautical exotic subtropical rare nautili realistic simple wildlife vector black outline sketch drawing graphic line ink engraving etching retro vintage etch doodle coloring contour