174 Polyodon spathula (Walbaum, 1792) Polyodontidae Paddlefishes Acipenseriformes Chondrostei Mississippi paddlefish North America: Mississippi River basin from southwestern New York to Montana and south to Louisiana; Gulf Slope drainagaes from Mobile Bay in Alabama, to Galveston Bay in Texas, USA. Formerly in Great Lakes basin, probably extirpated. At least one country reports adverse ecological impact after introduction. UBC 110616 Polyodon spathula UBC 110428 Polyodon spathula UBC 550322 30 N 89 W Polyodon spathula AMNH 1061 Polyodon spathula AMNH 18742 Polyodon spathula AMNH 226104 Polyodon spathula AMNH 2842 Polyodon spathula AMNH 2843 Polyodon spathula AMNH 2844 Polyodon spathula AMNH 2845 Polyodon spathula AMNH 2846 Polyodon spathula AMNH 2847 Polyodon spathula AMNH 3078 Polyodon spathula AMNH 3666 Polyodon spathula AMNH 3673 Polyodon spathula AMNH 36983 Polyodon spathula AMNH 58300 Polyodon spathula AMNH 58355 Polyodon spathula AMNH 8779 Polyodon spathula AMNH 97656 Polyodon spathula AMNH 9914 Polyodon spathula IGFA 39 N 95 W Polyodon spatula AMNH 1256 1875 Polyodon spathula AMNH 1788 1909 Polyodon spathula AMNH 4212 1913 Polyodon spathula AMNH 98186 1954 Polyodon spathula AMNH 98174 1960 Polyodon spathula AMNH 80371 1973 Polyodon spathula AMNH 44710 1974 Polyodon spathula AMNH 35380 1976 Polyodon spathula AMNH 57111 1977 Polyodon spathula GCRL 16092 1978 Polyodon spathula AMNH 39150 1979 Polyodon spathula ISH 38-1982 1980 Polyodon spathula AMNH 88849 1986 Polyodon spathula AMNH 222892 1989 Polyodon spathula AMNH 225211 1989 Polyodon spathula AMNH 222893 1991 Polyodon spathula AMNH 97530 1994 Polyodon spathula