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 Author Lopes, Daniela A. Author Mainenti, Adriana Author Sanches, Magda Author Knoff, Marcelo Author Gomes, Delir Correa text ZooKeys 2016 616 1 75 http://dx.doi.org/10.3897/zookeys.616.8481 journal article http://dx.doi.org/10.3897/zookeys.616.8481 1313-2970-616-1 5A8C55011C4A458091CA41FFE5879A56 Taxon classification Animalia Monocotylidea Monocotylidae Potamotrygonocotyle rionegrense Domingues, Pancera & Marques, 2007 Type host. Potamotrygon sp. Infection site. Gills. Type locality. Brazil, Amazonas State, Barcelos, Negro River ( 0°58'11"S , 62°55'13"W ). Paratypes. CHIOC 36885 a-d . Remarks. Holotype deposited in MZUSP. Other paratypes deposited in INPA, MZUSP, IPCR, HWML and USNPC. Reference. Domingues et al. (2007) .