In this work, two species of monogeneas parasites of gills of Tetraptunls audax ("marlin rayado") Captured in Mazatlán, Sinaloa, Mexico, are described. Both species are recorded for the first time in Mexico.

A new speciesofthe genusProbursata Bravo, 1984 (Monogenea: Heteraxinidae) is described, comparing it with the two previously known: P. veraecrucis Bravo, 1984, collected in the Gulf of Mexico and P. brasiliensis Takeoto, ...