image of hemifusus sea shells a genus of marine gastropod mollusks in the family melongenidae on white background.

animal animalia aquatic beach calcareous calciet calcium closeup collectible collectors conch conchology conchs cone decoration depth echinoderm ecology empty exoskeleton fauna gastropod hemifusus invertebrate isolated life living mantle marine melongenidae membrane mollusk mollusks nature object oceanic offshore organism riverside scallops sea seashell shape shell shellfish shells skeleton snail species spiral wildlife