25737 Aphanotorulus emarginatus (Valenciennes, 1840) Loricariidae Armored catfishes Hypostominae Siluriformes Teleostei South America: upper Orinoco River (except the Rio Apure); the Essequibo River and its tributaries; the lower Amazon River including the Rio Negro, the Rio Tapajos, and the Rio Xingu. AMNH 12597 Hypostomus emarginatus AMNH 12607 Hypostomus emarginatus AMNH 3851 Hypostomus emarginatus AMNH 40047 1964 Hypostomus emarginatus AMNH 40092 1964 Hypostomus emarginatus AMNH 40136 1964 Hypostomus emarginatus AMNH 40167 1964 Hypostomus emarginatus AMNH 40194 1964 Hypostomus emarginatus AMNH 77378 1965 Hypostomus emarginatus