Acropoma leobergi

The Tropical lanternbelly, Acropoma leobergi is a species of the genus Acropoma described as having a luminous behind the anus that resembles a "U" in shape. The species is native to the Arafura Sea.

Etymology
The fish is named in honor of Lev (or Leo) Semyonovich Berg (1876-1950), a Russian ichthyologist, after who the fishing vessel Academician Berg was also named, and from which the type specimens was collected in 1967.