The snail is a shellfish, belonging to the family Protogastropoda. The shell is in the shape of a gyroscope, with an enlarged snail layer. The height and width of the shell are not significantly different, and the surface of the shell is smooth or has spiral ribs, spines, or protrusions. The spiral tower is high, the shell top is blunt, and the suture line is shallow. All screw layers are convex, but the body layer is slightly concave near the suture line. The shell is round, and the edge of the outer lip is sharp. The shell surface has rich colors and complex patterns, with many variations.

Most species in the family Ranunculidae are spherical or pear shaped. The height and width of the shell are not significantly different. The surface of shells is either smooth or decorated with intricate details, and some also have ribs, spines, grooves, or protrusions. The inner surface of the shell has a pearl luster. Most species of snail are distributed in tropical, subtropical, and temperate oceans, with tropical waters being the most abundant. They have been found from intertidal zones to depths of 3400 meters, and they prefer to inhabit shallow waters near rocks and coral reefs where algae grow. Common types of snails include cat eyed snails, silver mouthed snails, golden mouthed snails, and night glow snails. Snail meat is edible, and shells can be carved into art pieces.