[Distribution of Azygia mirabilis (Trematoda, Azygiidae)]

The occurrence of the species has been analysed on the basis of the authors' own data, collection material of some parasitological laboratories and literary sources. It has been established that Azygia mirabilis is a rare species with a low number of populations. Only in Lakes Kujto (northern Karelia) and Pechozero (the Kola peninsular) the species is abundant.