Type material of Platyhelminthes (Monogenoidea) housed in the Helminthological Collection of the Oswaldo Cruz Institute / FIOCRUZ (CHIOC), Rio de Janeiro, Brazil, from 1979 to 2016 Lopes, Daniela A. Mainenti, Adriana Sanches, Magda Knoff, Marcelo Gomes, Delir Correa ZooKeys 2016 616 1 75 4M4SG Domingues & Marques, 2011 Domingues & Marques 2011 Monogenea Monocotylidae Potamotrygonocotyle CoL Animalia Potamotrygonocotyle tocantinsense Monocotylidea 57 58 Platyhelminthes species tocantinsense  Taxon classification Animalia Monocotylidea Monocotylidae  Type host.  Potamotrygon cf. scobina  Infection site. Gills.  Type locality. Brazil, Tocantins State, Ipueiras, Tocantins River ( 11°18'36"S, 48°27'36"W).   Paratypes. CHIOC 37405 a-c.  Remarks. Holotype deposited in MZUSP. Other paratypes deposited in INPA, MZUSP and USNPC. Paratypes collected from a different site along the Tocantins River ( 11°15'48.52"S, 48°26'56.79"W).  Reference.  Domingues and Marques (2011).