biostudies-literatureUnknown19Simoes MBDespite the recent advances raised in the molecular era to the taxonomic knowledge of species of the family Clinostomidae, especially those belonging to the specious genus <i>Clinostomum</i>, some groups of these vertebrate parasites remain poorly studied. This is the case of species of the enigmatic genus <i>Ithyoclinostomum</i> Witenberg, 1926, until recently monotypic and restricted to South America, but with its occurrence expanded to North America after the description of <i>I</i>. <i>yamagutii</i> Rosser et al., 2020. Nevertheless, molecular data for the type species of the genus, <i>Ithyoclinostomum dimorphum</i> (Diesing, 1850), is lacking so far. In the present study, large clinostomid metacercariae morphologically indistinguishable from <i>I. dimorphum</i> were obtained from two International journal for parasitology. Parasites and wildlife84-88https://www.ebi.ac.uk/biostudies/studies/S-EPMC9449640biostudies-literatureSize does not matter: molecular phylogeny reveals one of the largest trematodes from vertebrates, the enigmatic <i>Ithyoclinostomum dimorphum</i>, as a species of <i>Clinostomum</i> (Trematoda: Clinostomidae).PMC9449640Alves PVMoreira NIBCouto EALopez-Hernandez DPinto HASimoes MBfalseSize does not matter: molecular phylogeny reveals one of the largest trematodes from vertebrates, the enigmatic <i>Ithyoclinostomum dimorphum</i>, as a species of <i>Clinostomum</i> (Trematoda: Clinostomidae).Despite the recent advances raised in the molecular era to the taxonomic knowledge of species of the family Clinostomidae, especially those belonging to the specious genus <i>Clinostomum</i>, some groups of these vertebrate parasites remain poorly studied. This is the case of species of the enigmatic genus <i>Ithyoclinostomum</i> Witenberg, 1926, until recently monotypic and restricted to South America, but with its occurrence expanded to North America after the description of <i>I</i>. <i>yamagutii</i> Rosser et al., 2020. Nevertheless, molecular data for the type species of the genus, <i>Ithyoclinostomum dimorphum</i> (Diesing, 1850), is lacking so far. In the present study, large clinostomid metacercariae morphologically indistinguishable from <i>I. dimorphum</i> were obtained from two 2022-01-01T00:00:00Z2022 Dec2026-05-27T11:14:48.553Z2024-12-04T07:49:33.862ZS-EPMC94496403609066710.1016/j.ijppaw.2022.08.002