Euprotomus bulla, common name : the Bubble Conch, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs.

The shell of the snail is almost elliptical, with a rough dorsal surface, and tubercles on its shoulders.

Outside, the shell is a "glossy cream" color, with fawn mottings and spiral bands of gray appearing in mature specimens.

The inside of the shell is aperture bright pink or orange.

[2] This species is distributed in the Pacific Ocean along Indonesia, the Ryukyus (Japan) and Samoa.