Which sensory equipment allows the ray to detect the faint electrical fields of hidden crustaceans?

Answer

Ampullae of Lorenzini.

The ray possesses Ampullae of Lorenzini, which function similarly to a metal detector by locating the faint electrical signatures emitted by concealed prey.

Which sensory equipment allows the ray to detect the faint electrical fields of hidden crustaceans?
animalRayeaglefish