Helminth Parasites of the Giant Toad, Rhinella horribilis (Wiegmann, 1833) (Anura: Bufonidae) from Central Mexico

Abstract

As part of an ongoing project to inventory the helminth parasites of amphibians from the state of Hidalgo, Central Mexico, specimens of Rhinella horribilis were collected from three municipalities: Eloxochitlán, Huehuetla, and San Felipe Orizatlán. A total of eight taxa of helminths were found: three digeneans (Haematoloechus sp., Langeronia macrocirra, and Mesocoelium danforthi) and five nematodes (Cosmocerca sp., Cruzia morleyi, Ochoterenella chiapensis, Oswaldocruzia subauricularis, and Rhabdias sp.). The highest species richness was recorded in Huehuetla. All reports of these species of helminths represent new locality records for Mexico.