title: [Aspidogasters--the parasites of unionids in the Zhitomir Polesye].
abstract: The paper provides the data on the invasion of unionids in the Zhitomir Polesye by parasitic worms Aspidogaster conchicola. The aspidogasters have been found in 9 species of molluscs (Unio--5, Colletopterum--1, Pseudonodonta--1, Batavusiana--2). An extensity and intensity of invasion of unionids by A. conchicola are unequal in different host species. The highest values of them were recorded for Unio conus borysthenicus (87% and 12 specimens), U. tumidus falcatulus (75%; 5 specimens), and Batavusiana nana (59.8%; 20 specimens). The invasion of molluscs by aspidogastrids from the stagnant waters are higher, than from the fluvial waters. The aspidogasters were found in the pericardium and kidneys of unionids. More often the parasites were met in the pericardium exclusively, rarely in the pericardium and kidneys simultaneously, and most rarely in the kidneys only. Within the pericardium, A. conchicola prefer the furthest sites of the contractile ventricle of the molluscan heart.
authors.forename: M E
authors.initials: ME
authors.lastname: Miniuk
mesh_terms: D000818:Animals; D005618:Fresh Water / Q000469:parasitology*; D007668:Kidney / Q000469:parasitology; D008974:Mollusca / Q000469:parasitology*; D010496:Pericardium / Q000469:parasitology; D013045:Species Specificity; D014200:Trematoda / Q000302:isolation & purification*; D014455:Ukraine