Biota (Life)
    
        Eukaryote (Eukarya)
    
        Podiata
    
        Unikont (Unikonta)
    
        Opisthokont (Opisthokonta)
    
        Holozoa
    
        Filozoa
    
        Apoikozoa (Choanozoa)
    
        Animal (Animalia)
    
        Metazoa
    
        Epitheliozoa
    
        Eumetazoa
    
        Bilateria
    
        Deuterostome (Deuterostomia)
    
        Chordata (Chordates)
    
        Olfactores
    
        Craniata (Craniata (chordata))
    
        Vertebrata (Animals with backbone)
    
        Gnathostomata (Gnathostome)
    
        Eugnathostomata
    
        Teleostomi
    
        Osteichthyes (Bony fish)
    
        Actinopterygii (Ray-finned fishes)
    
        Actinopteri
    
        Synbranchiformes (Swamp eels)
    
        Synbranchoidei
    
        Swamp eel (Swamp eels)
    
    
    
    
    
        
        Children (3 direct children, 3 direct and indirect children):
        
        
        
            
                Apterigia immaculata
                
                
                
            
                Apterigia nigromaculata
                
                
                
            
                Apterigia saccogularis