The Trachichthyiformes /træˈkɪkθi.ɪfɔːrmiːz/ are an order of ray-finned fishes in the superorder Acanthopterygii.
Phylogeny
A recent phylogeny based on the work of Betancur-Rodriguez et al. 2017 shows Trachichthyiformes as a sister group of Beryciformes in the clade Berycimorpha.[2]
Acanthopterygii Berycimorpha
Beryciformes Berycoidei
Melamphaidae
Berycidae
Stephanoberycoidei
Cetomimidae
Rondeletiidae
Barbourisiidae
Stephanoberycidae
Trachichthyiformes Diretmidae
Trachichthyoidea
Monocentridae
Anomalopidae
Trachichthyidae 
Holocentrimorpha
Holocentriformes Holocentridae
Percomorpha (many orders and families)
References
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^ The phylogeny and evolution of the Trachichthyiformes (Teleostei: Percomorpha), with comments on the intrarelationships of the Acanthomorpha. JA Moore, 1993
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^ Betancur-Rodriguez, R.; Wiley, E.O.; Arratia, Gloria; Acero, A.; Bailly, N.; Miya, M.; Lecointre, G.; Ortí, G. (2017). "Phylogenetic Classification of Bony Fishes – Version 4". BMC Evolutionary Biology. BioMed Central. 17 (162). doi:10.1186/s12862-017-0958-3. PMC 5501477. PMID 28683774.
- Hgulichthys, nouveau genre de Lissoberycinae (Trachichthyiformes, Trachichthyoidea) du Cénomanien inférieur marin de Hgula (Liban). Implications ... O Otero, Y Dutour, M Gayet, Geobios, 1995
