H. inflatocoelium Oshmarin, 1963

Type host. Common ringed plover, Charadrius hiaticula Linnaeus (Charadriiformes: Charadriidae). Type locality. Primorskii Krai, Russian Federation.

Remarks. This species has an unusual distribution of the vitelline fields, which terminate posteriorly about two thirds of the distance down the body. This distribution may not be typical of the species. Rudimentary oral sucker present—Oshmarin (1963).