Chapter 12: Homonymy

Article 52: Principle of Homonomy

Article 53: Definitions of homonymy in the family group, genus group and species group

Article 54: Names that do not enter into homonymy

Article 55: Family-group names

Article 56: Genus-group names

Article 57: Species-group names

Article 58: Variant spellings of species-group names deemed to be identical

Article 59: Validity of secondary homonyms

Article 60: Replacement of junior homonyms