48936 Hypostomus nematopterus Isbrücker & Nijssen, 1984 Loricariidae Armored catfishes Hypostominae Siluriformes Teleostei South America: Oyapock River basin. FISH 605312 2 N 52 W Hypostomus nematopterus FISH 605313 3 N 52 W Hypostomus nematopterus