Heterophyid trematodes (Digenea) from penguins: A new species of Ascocotyle Looss, 1899, first description of metacercaria of Ascocotyle (A.) patagoniensis Hernández-Orts et al. (2012), and first molecular data - Hernández-Orts, J. S.; Georgieva, S.; Landete, D. N.; Scholz, T. (International Journal for Parasitology: Parasites and Wildlife, 2019)