. . "Irrawaddy Dolphin" . . "Orcaella brevirostris (Owen in Gray 1866)" . "Cetacea" . "Orcaella brevirostris" . . . . "Delphinidae" . . . . . . "Orcaella" . . . "(Owen in Gray 1866)" . "Mammalia" . "Chordata" . . . . . "Animalia" .