| Valenciennellus, Stomiiformes, Polyipnus, Maurolicus, Sternoptyx|
Argyripnus is an oceanic ray-finned fish genus which belongs in the family Sternoptychidae. They are commonly known as bristle-mouth fishes, but that may also refer to the related bristlemouth family (Gonostomatidae). A. iridescens is called "pearlside", which usually refers to the closely related genus Maurolicus.
There are currently seven recognized species in this genus: Argyripnus atlanticus Maul, 1952
Argyripnus brocki Struhsaker, 1973 (Brock's Bristle-mouth Fish)
Argyripnus electronus Parin, 1992
Argyripnus ephippiatus C. H. Gilbert & Cramer, 1897 (Gilbert & Cramer's Bristle-mouth Fish)
Argyripnus hulleyi Quéro, Spitz & Vayne, 2009 (Reunion bristle-mouth fish)
Argyripnus iridescens McCulloch, 1926 (Brilliant Pearlside)
Argyripnus pharos Harold & Lancaster, 2003
Fossils of bristle-mouth fishes show that the genus was already distinct in the Late Oligocene, more than 23 million years ago.