New species in genus Azygia Looss, 1899 (Trematoda, Azygiidae)

A new species Azygia inopinata is described from Esox lucius The species was found in two lakes of southern Karelia. Marita is characterized by the equality of suckers and globular pharynx; the average size of eggs is 0.061 x 0.033 mm. The intermediate host(in the experiment) is Galba plaustris. The larva is Cercaria mirabilis Braun.