A new species of Parapharyngodon Chatterji, 1933 (Oxyuroidea: Pharyngodonidae), parasitic in Osteocephalus taurinus (Anura: Hylidae) from Brazil

DOS SANTOS, ANA NUNES; DOS SANTOS, JEANNIE NASCIMENTO; DOS SANTOS, TAP; DE ARGOLO, EGG; OLIVEIRA RODRIGUES, A.R; GONZÁLEZ, CYNTHYA E.; F.T. VASCONCELOS MELO

J. HELMINTHOL.

Cambridge Univ. Press

Lugar: Cambridge; Año: 2019 vol. 93 p. 220 - 225

0022-149X

Parapharyngodon politoedi n. sp. is described here, based on specimens found in the large intestines of Osteocephalus taurinus from the Caxiuanã National Forest, State of Pará, Brazil. The new species is assigned to Parapharyngodon based on the presence of nonembryonated eggs with sub-terminal opercula, when in the ovojector. Parapharyngodon politoedi belongs to a group of species with three pairs of cloacal papillae and differs from its congeners by morphometric aspects, such as the length of the spicule, and the combination of the following morphological characters: ovaries never encircling the oesophagus, tail shape in females, cloacal lips, sharply pointed spicule and presence of genital cone. This is the second species of nematode reported to parasitize O. taurinus and the eleventh species of Parapharyngodon from hylids in the Neotropical region.