. . . . . "Chordata" . . "Thomas 1923" . "Didelphimorphia" . . "Animalia" . "Monodelphis" . . "Monodelphis maraxina Thomas 1923" . "Marajo Short-tailed Opossum" . "Monodelphis maraxina" . . "Didelphidae" . . . . . . . "Mammalia" .