Morphological and molecular identification of <i>Neomoliniella longicorpa</i> gen. et sp. nov. (Digenea: Echinostomatidae) from the Eurasian coot <i>Fulica atra</i> (Aves: Rallidae): a taxonomic evaluation

The purpose of the research is morphological and molecular identification trematodes found in intestines migratory waterfowl with subsequent taxonomic evaluation. Materials methods . Mature specimens were collected from ( Fulica atra Aythya ferina ) shot during ecological-faunistic monitoring southern part Primorsky krai. Preliminary analyze revealed that belong to Echinostomatidae family. whole-mounts worms F. prepared using standard alum carmine. Divergent domains 28S ribosomal RNA gene sequenced used determine systematic position relationships discovered species echinostome by reconstructing Bayesian Maximum likelihood trees. Results discussion Trematodes coots' intestine, should be described as Neomoliniella longicorpa new genus gen. et sp. nov., which reliably confirmed genetics data. Another cryptic echinostomatid sister probably representing separate unknown genus, was demonstrated only on phylogenetic reconstructions large genetic distances. Currently, this taxon indicated more evidence needed for its validation. We also report about first detection Echinostoma paraulum A. south Russian Far East. biology, morphology each life cycle stage newly investigated test not their scientific but medical significance. For time history group, dichotomous keys eight families superfamilyEchinostomatoidea and, date, largest all previously known family chart – 27 Palearctic genera compiled.