46449 Alfaro cultratus (Regan, 1908) Poeciliidae Poeciliids Poeciliinae Cyprinodontiformes Teleostei Knife livebearer Central America: Costa Rica, Panama and Nicaragua. AMNH 10210 Alfaro cultratus AMNH 28593 Alfaro cultratus AMNH 5086 1915 Alfaro amazonum AMNH 221457 1916 Alfaro cultratus GCRL 6674 1959 Alfaro cultratus GCRL 6689 1959 Alfaro cultratus GCRL 6691 1959 Alfaro cultratus GCRL 6599 1960 Alfaro cultratus GCRL 6600 1960 Alfaro cultratus GCRL 6678 1960 Alfaro cultratus AMNH 20589 1962 Alfaro cultratus