Diplophidae
Family of fishes
The Diplophidae or portholefishes are a family of mesopelagic marine stomiiform fish found in deep waters worldwide.
The following two genera are placed in this family:
Previously, both genera were placed in the family Gonostomatidae . However, a 2025 phylogenetic study found this family to be paraphyletic as previously described, and found these genera to form a distinct early-diverging clade within the Stomiiformes, for which the old family name Diplophidae was revived.
References
↑ Fricke, R.; Eschmeyer, W. N.; Van der Laan, R. (2025). "ESCHMEYER'S CATALOG OF FISHES: CLASSIFICATION" . California Academy of Sciences . Retrieved 2025-08-14 .
↑ Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Diplophidae" . Catalog of Fishes . California Academy of Sciences . Retrieved 20 December 2025 .
↑ Chang, Solomon; Heiple, Zach; Hays, Delson; Melendez-Vazquez, Fernando; Lee, Casey; Frable, Benjamin W.; Pogonoski, John; Martinez, Christopher M.; Betancur-R, Ricardo; Arcila, Dahiana (2025-10-21). "Genome-wide phylogeny reshapes our understanding of the evolution of deep-sea dragonfishes, bristlemouths, viperfishes, and allies (Stomiiformes)" . BMC Ecology and Evolution . 25 (1): 111. Bibcode :2025BMCEE..25..111C . doi :10.1186/s12862-025-02453-0 . ISSN 2730-7182 . PMC 12542184 . PMID 41120872 .