4753 Cnesterodon decemmaculatus (Jenyns, 1842) Poeciliidae Poeciliids Poeciliinae Cyprinodontiformes Teleostei Ten spotted live-bearer South America: lower Uruguay, Laguna dos Patos, Negro, and Salado River basins; western drainages of Argentina and small coastal drainages of Uruguay and Argentina. AMNH 12295 Cnesterodon decemmaculatus AMNH 12350 Cnesterodon decemmaculatus AMNH 50601 1963 Cnesterodon decemmaculatus AMNH 58793 1963 Cnesterodon decemmaculatus AMNH 216098 1979 Cnesterodon decemmaculatus AMNH 39128 1979 Cnesterodon decemmaculatus AMNH 39129 1979 Cnesterodon decemmaculatus AMNH 91091 1989 Cnesterodon decemmaculatus AMNH 99900 1989 Cnesterodon decemmaculatus AMNH 99911 1989 Cnesterodon decemmaculatus