Photo of Greek Terracotta fish-plate - Public domain dedication

A fish plate is a Greek pottery vessel used by western, Hellenistic Greeks during the fourth century BC. Although invented in fifth-century BC Athens, most of the corpus of surviving painted fish plates originate in Southern Italy, where fourth-century BC Greek settlers, called "Italiotes," manufactured them. The name "fish plate" comes from their usual decoration of seafood items which includes various fish and other marine creatures. Fishes depicted include bream, perch, torpedo fish, tuna, flying fish, puffer fish, scorpion fish, squid, cuttlefish, octopus, scallop, clam, dentalia, murex, sea snail, shrimp, crab, dolphin, hippocamp, etc.