 The maximum reported length is for males and for females.The most important prey of the brown lanternshark are bony fishes (mainly lanternfishes), followed by cephalopods (mainly the squid "Watasenia scintillans"), and finally crustaceans (mainly prawns such as "Acanthephyra").A known parasite of this shark is a species of copepod in the genus "Lerneopoda".