63774 Rhinodoras armbrusteri Sabaj Pérez, 2008 Doradidae Thorny catfishes Doradinae Siluriformes Teleostei South America: Takutu River (including its tributary, Ireng) that drains into the upper Rio Branco (Amazonas basin), Guyana and Brazil, and the Rupununi River (Essequibo basin) in Guyana. UG/CSBD 11046 3 n 59 w 2003 Rhinodoras armbrusteri