1) Fish 2) Scombroid 3) Scombroid fish 
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. The three species are: ==Timeline== ImageSize = width:1000px height:auto barincrement:15px PlotArea = left:10px bottom:50px top:10px right:10px Period...
[n] - sluggish square-tailed fish armored with tough bony scales
noun sluggish square-tailed fish armored with tough bony scales; of deep warm waters