The megaris is found in some medieval encyclopedias. It is a fish that is inexpensive near where it is caught, but when exported to distant place as salted fish it more highly valued because of its salt content. It is best when served fresh and unsalted. The physical appearance of the megaris is not described.

Megaris, a Greek island, was a center for the production and export of salted fish. The encyclopedias used "megaris" as the name of a fish.