Webster’s Revised Unabridged Dictionary · 1913
Yellowtail
Yel′low·tail′ (·tāl′), n. (Zoöl.) (a) Any one of several species of marine carangoid fishes of the genus Seriola; especially, the large California species (S. dorsalis) which sometimes weighs thirty or forty pounds, and is highly esteemed as a food fish; — called also cavasina, and white salmon. (b) The mademoiselle, or silver perch. (c) The menhaden. (d) The runner, 12. (e) A California rockfish (Sebastodes flavidus). (f) The sailor's choice (Diplodus rhomboides).
☞ Several other fishes are also locally called yellowtail.