from The Century Dictionary and Cyclopedia
- n. A fish of the family Regalecidæ, Regalecus glesne. Also called king of the herrings. See Regalecidæ.
Sorry, no etymologies found.
One of the most singular things I saw was a specimen (said to be the only one in existence) of a fish called the "herring-king," about twelve feet in length by one in thickness, and with something of the serpent in its appearance.