4793 Pterygoplichthys multiradiatus (Hancock, 1828) Loricariidae Armored catfishes Hypostominae Siluriformes Teleostei Orinoco sailfin catfish South America: Orinoco River basin. Reported from Argentina (Ref. 9086). Introduced and have established in Taiwan, mainland USA and Hawaii (Refs. 5723, 44091, 58503). AMNH 77415 1965 Pterygoplichthys multiradiatus AMNH 77474 1965 Pterygoplichthys multiradiatus AMNH 223028 1977 Pterygoplichthys multiradiatus AMNH 77802 1983 Pterygoplichthys multiradiatus