Gonostoma

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Superordo: Stenopterygii
Ordo: Stomiiformes
Subordo: Gonostomatoidei

Familia: Gonostomatidae
Genera: Gonostoma
Species: G. atlanticum – G. bathyphilum – G. denudatum – G. elongatum
Vernacular names

Gonostoma is a genus of bristlemouths.
Species

There are three extant species recognized in this genus:[1]

Gonostoma atlanticum Norman, 1930 (Atlantic fangjaw)
Gonostoma denudatum Rafinesque, 1810
Gonostoma elongatum Günther, 1878 (Elongated bristlemouth fish)

Moreover, there is the fossil species

Gonostoma dracula Grădianu et al., 2017

G. dracula lived in the Oligocene, in what is today Romania, at the time when the country was part of the Paratethys sea.[2]
References

Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Gonostoma in FishBase. February 2012 version.
Ionuţ Grădianu; Tomáš Přikryl; Růžena Gregorová; Antony S. Harold (2017). "†Gonostoma dracula sp. nov. (Teleostei, Gonostomatidae) from the Oligocene deposits of the Central Paratethys (Romania): earliest occurrence of the modern bristlemouths". Bulletin of Geosciences. 92 (3): 323–336. doi:10.3140/bull.geosci.1683.