Auxis brachydorax
Auxis brachydorax is a species of tuna in the family Scombridae. It is a pelagic marine species native to the eastern Central Pacific, where it has been reported from mainland Ecuador, the Galápagos, Mexico, Panama, Peru, and the United States. The species reaches 40 cm (15.7 inches) in fork length. References 

Fish described in 1996
brachydorax