A New Species of Mathevotaenia (Cestoda: Anoplocephalidae) from Ctenomys Opimus (Rodentia: Ctenomyidae) in Bolivia.

A new species of Mathevotaenia Akumyan, 1946 (Cestoda: Anoplocephalidae) is described from a specimen of Ctenomys opimus collected in the Altiplano region of Bolivia in 1984. This species represents the second Anoplocephalid parasite described from Ctenomys, and is represented by only a single specimen. This tapeworm has more testes per segment than other described species of Mathevotaenia from the same region. The description of a new species from a decades-old specimen highlights the need for continuous examination of museum material as well as the need for collection of new specimens from rapidly disappearing biomes around the world