A taxonomic review of hymenolepidids (Eucestoda, Hymenolepididae) from dormice (Rodentia, Gliridae), with descriptions of two new species.

In present study the systematic and taxonomic position of hymenolepidids parasitizing rodents of the family Gliridae from Europe and Central Asia is discussed. Hymenolepis myoxi is redescribed on the basis of the type material from the fat dormouse Glis glis deposited in the collection of the Museum für Naturkunde, Berlin, Germany. Significant corrections of morphologically distinctive characters attributable to H. myoxi include: (1) recognition of a rudimentary rostellar apparatus; (2) absence of rostellar hooks and spination on the suckers; and (3) tissues of the scolex and neck filled with numerous "firm elements". Hymenolepis sulcata was recognised as a synonym of H. myoxi (sensu stricto). The generic allocation of true H. myoxi and validity of the genus Armadolepis is clarified. Specimens from Eliomys quercinus originally designated as H. myoxi by Baer (1932) are described as a new species, Armadolepis jeanbaeri n. sp. The taxonomy has potentially been confused as Spassky (1954) designated misidentified specimens of H. myoxi sensu Baer (1932) as the type species of the genus Armadolepis. In the current article, this error is corrected and A. jeanbaeri n. sp. is fixed as the type of the genus Armadolepis. An additional new species of Armadolepis, A. tenorai n. sp., is described from Dryomys nitedula from Almaty Province, Kazakhstan. The generic diagnosis of Armadolepis is amended. Armadolepis (sensu stricto) is subdivided into two subgenera; the nominotypical subgenus includes species having well developed rostellar apparatus armed by rostellar hooks and A. (Bremserilepis) n. subgen. includes species with rudimentary and unarmed rostellar apparatus.