Helminths of Pholidobolus montium (Sauria: Gymnophthalmidae) from Ecuador with description of a new species of Skrjabinodon (Nematoda: Oxyuroidea: Pharyngodonidae).

Skrjabinodon aspercaudus n. sp. from the large intestine of Pholidobolus montium (Gymnophthalmidae) from Ecuador is described and illustrated. Skrjabinodon aspercaudus represents the 29th species assigned to the genus and the 6th species from the neotropical region. The new species differs from all other species assigned to Skrjabinodon by the presence of small bosses on the surface of the tail filament of both males and females. In addition to the new species, P. montium harbored the cestode, Cairaella henrii, and third-stage larvae of a species of Physaloptera.