tarpum

from The Century Dictionary.

• noun Same as tarpon.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A very large marine fish (Megapolis Atlanticus) of the Southern United States and the West Indies. It often becomes six or more feet in length, and has large silvery scales. The scales are a staple article of trade, and are used in fancywork. Called also tarpon, sabalo, savanilla, silverfish, and jewfish.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A large marine fish (Megapolis atlanticus) of the southern United States and the West Indies, with large silvery scales.