Yellowfins grow to about six and a half feet [2 m] and sport a yellow stripe, yellow finlets, and exceptionally long, swept - back fins.
Dzeltenspuru tunči izaug aptuveni divus metrus gari un dižojas ar dzeltenu svītru, dzeltenām papildspurām un garām, ieslīpi atpakaļ noliektām spurām.