Acanthephyra purpurea, sometimes called the fire-breathing shrimp, is a species of bioluminescent deep sea shrimp first described in 1881. The species is known for 'vomiting' bioluminescent fluid when distressed, although the fluid likely originates from the hepatopancreas and not the stomach.

A. purpurea expels large quantities of luminous fluid when distressed. When it is discharged into the water, luciferin