Classification
Biota [regio]Animalia [regnum]
Chordata [phylum]
Reptilia [classis]
Squamata [ordo]
Serpentes [subordo]
Subordo Serpentes contains the following taxa:
Boidae [familia]
Colubridae [familia]
Elapidae [familia]
Natricidae [familia]
Pythonidae [familia]
Viperidae [familia]