barreleye fish from deep sea in total darkness

sea Even in a deep-sea world full of
adaptations for seeing in near-total darkness,
the barreleye fish (Macropinna microstoma)
stands out as one of the most bizarre. Two
small indentations where eyes might normally
appear on a fish are actually the barreleye's
olfactory organs, and its eyes are two glowing
green orbs behind its face that gaze up
towards the top of its head.