Diplophidae

Diplophidae
Diplophos rebainsi
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Stomiiformes
Family:	Diplophidae Fowler, 1925
Genera
Diplophos Günther, 1873 Manducus Goode & T. H. Bean, 1896

The Diplophidae or portholefishes are a family of mesopelagic marine stomiiform fish found in deep waters worldwide. ^[1]

The following two genera are placed in this family: ^[2]

• Diplophos Günther, 1873
• Manducus Goode & T. H. Bean, 1896

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. ^[3]

References

1. Fricke, R.; Eschmeyer, W. N.; Van der Laan, R. (2025). "ESCHMEYER'S CATALOG OF FISHES: CLASSIFICATION". California Academy of Sciences . Retrieved 2025-08-14.
2. 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.
3. 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.