Diaphus ostenfeldi

Diaphus ostenfeldi, also known as Ostenfeld's lanternfish, is a species of lanternfish found worldwide.

Description
This species reaches a length of 12.0 cm.

Etymology
The fish is named in honor of the late Carl Hansen Ostenfeld (1873–1931), a Danish botanist and the chairman of the committee that edited the oceanographic reports of the Dana expeditions.