title: [Taxonomic analysis of Pegosomum asperum and P. saginatum (Trematoda: Echinostomatidae)].
abstract: Morphology, ecology and chromosomes of P. asperum and P. saginatum were investigated. The both species have a diploid set consisting-of 20 chromosomes with similar morphology and size of bivalents. Their karyotypes are supposed to be identical. According to their morphology and ecology the both species are clearly differentiated. A conclusion is drawn on the distinct status of these trematodes having originated as a result of simpatric speciation.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000648:ultrastructure; D004463:Ecology; D014644:Genetic Variation; D007621:Karyotyping; D014200:Trematoda / Q000145:classification* / Q000235:genetics
vernacular_title: Taksonomicheskiĭ analiz Pegosomum asperum i P. saginatum (Trematoda: Echinostomatidae).