The northern lampfish (Stenobrachius leucopsarus), also known as smallfin lanternfish, is a small oceanic fish in the family Myctophidae. First described by husband and wife ichthyologists Carl H. and Rosa Smith Eigenmann in 1890, it is named for the numerous small round photophores that line the ventral surface of its head and body. Like most fish, it is oviparous; It feeds on plankton, and is eaten by numerous predators, including fish such as salmon and tuna and birds such as the red-legged kittiwake.