Acanthochondria triangularis sp.nov. [Copepoda, Poecilostomatoida, Chondracanthidae] parasitic on Urophycis brasiliensis and U.mystaceus [Osteichthyes, Phycidae] from the Southern Brazilian coastal zone

A new species of Acanthochondria (Copepoda, Poecilostomatoida, Chondracanthidae) parasitic on Brazilian codling Urophycis brasiliensis (Kaup, 1858) and the gulf hake U. mystaceus Ribeiro, 1903 from the Brazilian coastal zone, is described and illustrated. The new species of Acanthochondria differs from the other species of genus by a combination of characters that include shape of the head, shape of the trunk and size of the trunk posterior processes. This is the first record of Acanthochondria species from the South American Atlantic Ocean.