Phylogenic relationships between the 28S D1 rDNA gene of Plagiorchis muris and other Plagiorchiidae. This parsimonious tree was analyzed by neighbor-joining method using PHYLIP program. G, Glypthelmins; A, Astiotrema; H, Haplometra; L. rastellus, Lecithopyge rastellus; L. nigrovenosus, Leptophallus nigrovenosus; M. longicollis, Macrodera longicollis; N, Neoglyphe; P. cloacicola, Paralepoderma cloacicola; P, Plagiorchis; S, Skrjabinoeces; H. longiplexus, Haematoloechus longiplexus.