The ray 's eyes are located topside , but are believed to be less important for finding food than electrical sensory organs surrounding the mouth . These organs , called ampullae of lorenzini , pick up the electrical charges naturally emitted by prey .

刺鳐的眼睛分居顶部两侧，在寻找食物的时候，眼睛用处不大，它们主要依靠嘴周围的电感受器，这种器官现在被称为洛伦氏壶腹（ampullaeoflorenzini），通过它可以探测猎物身上发出的电荷。