| Squaretails | |
|---|---|
![]()  | |
| Smalleye squaretail, Tetragonurus cuvieri Drawing by Dr Tony Ayling  | |
| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Scombriformes | 
| Suborder: | Stromateoidei | 
| Family: | Tetragonuridae | 
| Genus: | Tetragonurus Risso, 1810  | 
| Type species | |
| Tetragonurus cuvieri Risso, 1810  | |
| Species | |
| 
 See text.  | |
| Synonyms | |
| 
 Ctenodax Macleay, 1886  | |
The squaretails are a genus, Tetragonurus, of perciform fishes, the only genus in the family Tetragonuridae.
They are found in tropical and subtropical oceans, and feed on jellyfish and ctenophores.
Species
The three species are:
- Bigeye squaretail, T. atlanticus Lowe, 1839
 - Smalleye squaretail, T. cuvieri Risso, 1810
 - Pacific squaretail, T. pacificus Abe, 1953
 
Timeline

References
- Froese, Rainer, and Daniel Pauly, eds. (2006). "Tetragonuridae" in FishBase. February 2006 version.
 - Froese, Rainer and Pauly, Daniel, eds. (2006). Species of Tetragonurus in FishBase. February 2006 version.
 
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