Scombroidei

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
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Eupercaria
Ordo: Perciformes
Subordo: Scombroidei
Familiae: Gempylidae - Scombridae - Sphyraenidae - Trichiuridae

Vernacular names
Deutsch: Makrelenartige
日本語: サバ亜目
ไทย: อันดับย่อยปลาทูน่า

Scombroidei is a suborder of the order Scombriformes. The suborder includes the barracuda, tuna, and mackerel, as well as the billfish. Regular Scombrids are observed to have large heads, eyes, and mouths. In most cases, the second dorsal fin will develop before the development of the first.
References
Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 2011-05-19.
Nishikawa, Rimmer, Yasuo, David W. (1987). Identification of larval tunas, billfishes and other scombroid fishes (suborder Scombroidei): an illustrated guide. No. 186. p. 2.