Polymorphidae gen. sp.

Actinopterygii

Paralichthys orbignyanus (Valenciennes) ( Pleuronectiformes, Paralichthyidae). SI: unknown. SD: cystacanth. L: Buenos Aires Province: Mar Chiquita Lagoon (37°32’S, 57°19’W). R: Alarcos and Etchegoin (2010).