 Fringefin lanternsharks likely use the species-specific bioluminescent patterns on their ventral side to find mates.Although Fringefin lanternshark reproduction has not been directly studied, due to their close association with other lanternshark species, Fringefin lanternsharks are presumably ovoviviparous.Ovoviviparity is a method of reproduction in which there is internal fertilization and the developing young feed on the egg yolk.