| molecular characterization of two opecoelid trematodes from fishes in the gulf of mexico, with a description of a new species of helicometra. | the plagioporine opecoelids helicometra fasciata (rudolphi, 1819) odhner, 1902, and macvicaria crassigula (linton, 1910) bartoli, bray, and gibson, 1989 have been reported from fishes in expansive geographic regions, disjointed from their type localities. new material of m. crassigula was collected from near its type locality as well as specimens resembling helicometra fasciata sensu lato from three triglids in the gulf of mexico. comparisons of the ribosomal dna (rdna) sequences, comprising the ... | 2014 | 25119353 |