|Family||Scientific Name||Author||Year||Common Name|
|Tetragonuridae||Tetragonurus atlanticus||Lowe||1839||Bigeye Squaretail|
Unique Characters: Elongate body, rounded in cross-section. Caudal peduncle long and thick, square in cross-section, with modified scales forming 2 low keels on each side. Mouth box-like, with lower jaw fitting completely within upper jaw when closed. Teeth in upper jaw small and recurved, those in lower jaw large, laterally flattened, knife-like, and close-set; strong recurved teeth present on vomer and palatines. Scales moderate in size, with heavy longitudinal keels, firmly attached, rows forming a pronounced geodesic pattern around body.
Similar Species: None.