This is a female Whipnose Anglerfish, Gigantactis gargantuai. Female deep sea anglerfishes are predatory, luring their prey with a bioluminescent bulb (an esca) at the end of a long rod (an illicium), which is a modified fin ray. Impressive teeth are used to impale and hold any prey item that moves in to investigate the glowing lure. The lure is filled with bioluminescent bacteria, which live in a symbiosis with the female anglerfish. This individual was captured in a trawl between 1,500 and 1,200 meters depth in the Gulf of Mexico, 2016. Image courtesy of the DEEPEND project.