Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Gruiformes Bonaparte, 1854
         Family Rallidae Vigors, 1825 - rails, waterhens, coots
           Genus Rallus Linnaeus, 1758
             Rallus elegans Audubon, 1834 - king rail
               1 Rallus elegans elegans Audubon, 1834
               2 Rallus elegans tenuirostris Ridgway, 1874
               3 Rallus elegans ramsdeni Riley, 1913