. "Bufo nelsoni" . "Amphibia" . "Animalia" . . . . . . . "Amargosa Toad" . "Chordata" . . . "Bufo nelsoni (Stejneger 1893)" . . "Anura" . "Bufonidae" . . "Bufo" . . "(Stejneger 1893)" . . . .