Taxonomic Hierarchy 
      
        
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 |   | Kingdom | Animalia 
 – Animal, animaux, animals | 
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|   |    Subkingdom | Bilateria 
 – triploblasts | 
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|   |       Infrakingdom | Deuterostomia 
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|   |          Phylum | Chordata 
 – cordés, cordado, chordates | 
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|   |             Subphylum | Vertebrata 
 – vertebrado, vertébrés, vertebrates | 
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|   |                Infraphylum | Gnathostomata 
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|   |                   Superclass | Tetrapoda 
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|   |                      Class | Reptilia Laurenti, 1768
 – répteis, reptiles, Reptiles | 
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|   |                         Order | Squamata Oppel, 1811
 – Amphisbaenians, Lizards, Snakes, amphisbènes, lézards, serpents | 
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|   |                            Suborder | Serpentes Linnaeus, 1758
 – Snakes, cobra, serpente, serpents | 
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|   |                               Infraorder | Alethinophidia Nopcsa, 1923
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|   |                                  Family | Colubridae Oppel, 1811
 – Colubrids, Typical Snakes | 
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|   |                                     Subfamily | Colubrinae Oppel, 1811
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|   |                                        Genus | Drymarchon Fitzinger, 1843
 – Indigo Snakes | 
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|   |                                           Species | Drymarchon melanurus (A. M. C. Duméril, Bibron and A. H. A. Duméril, 1854)
 – Middle American Indigo Snake, Blacktail Cribo, Central American Indigo Snake | 
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|   |                                              Subspecies | Drymarchon melanurus unicolor H. M. Smith, 1941 | 
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