Lisitsyna, O.I.
(Вестник зоологии, 2010)
Morphological variability in cystacanths and adults of P. (P.) cylindraceus (Goeze, 1782) Schmidt et Kuntz, 1966, type material of P. (P.) gallinagi Schachtachtinskaja, 1953 and P. (P.) gracilis Petrochenko, 1958 were ...