28040 Rhamphichthys rostratus (Linnaeus, 1766) Rhamphichthyidae Sand knifefishes Gymnotiformes Teleostei Trompet knifefish South America: coastal rivers of northeastern South America. AMNH 14035 Rhamphichthys rostratus AMNH 220970 Rhamphichthys rostratus AMNH 3892 Rhamphichthys reinhardti FB 2741014 Rhamphichthys schneideri FISH 604812 4 N 52 W Rhamphichthys rostratus FISH 605699 3 N 52 W Rhamphichthys rostratus FISH 605883 3 N 54 W Rhamphichthys rostratus FISH 607189 5 N 53 W Rhamphichthys rostratus AMNH 13679 1936 Rhamphichthys rostratus AMNH 217672 1979 Rhamphichthys rostratus AMNH 72141 1982 Rhamphichthys rostratus