The longfin lanternfish (Diogenichthys atlanticus) is a species of oceanodromous lanternfish that is oviparous,[2] and a host of Sarcotretes scopeli.

[3] It is a widespread species that lives in oceans like the Atlantic, Pacific, and Indian Ocean.

[2] It lives from 18 to 1,250 meters below the ocean surface.

[5] It is an abundant species of fish, with a stable population, with no known threats, and occurs in many marine protected areas, so the IUCN Red List considers it a Least Concern species.

[4] Put by the World Register of Marine Species.