Title pages

Explanatory Note on the Code

Preface to the Fourth Edition

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Chapter 1: Zoological nomenclature

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Chapter 2: The number of words in the scientific names of animals

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Chapter 3: Criteria of publication

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Chapter 4: Criteria of availability

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Chapter 5: Date of publication

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Chapter 6: Validity of names and nomenclatural acts

Chapter 7: Formation and treatment of names


Article 25. Formation and treatment of names


Article 26. Assumption of Greek or Latin in scientific names


Article 27. Diacritic and other marks


Article 28. Initial letters


Article 29. Family-group names



29.1. Formation of family-group names



29.2. Suffixes for family-group names



29.3. Determination of stem in names of type genera



29.4. Acceptance of originally formed stem



29.5. Maintenance of current spellings



29.6. Avoidance of homonymy in family-group names


Article 30. Gender of genus-group names



30.1. Gender of names formed from Latin or Greek words



30.2. Gender of names formed from words that are neither Latin nor Greek


Article 31. Species-group names



31.1. Species-group names formed from personal names



31.2. Agreement in gender


Article 32. Original spellings



32.1. Definition



32.2. Correct original spelling



32.3. Preservation of correct original spelling



32.4. Status of incorrect original spellings



32.5. Spellings that must be corrected (incorrect original spellings)


Article 33. Subsequent spellings



33.1. Kinds of subsequent spellings



33.2. Emendations



33.3. Incorrect subsequent spellings



33.4. Use of -i for -ii and vice versa, and other alternative spellings, in subsequent spellings of species-group names



33.5. Cases of doubt


Article 34. Mandatory changes in spelling consequent upon changes in rank or combination



34.1. Family-group names



34.2. Species-group names

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Chapter 8: Family-group nominal taxa and their names

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Chapter 9: Genus-group nominal taxa and their names

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Chapter 10: Species-group nominal taxa and their names

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Chapter 11: Authorship

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Chapter 12: Homonymy

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Chapter 13: The type concept in nomenclature

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Chapter 14: Types in the family group

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Chapter 15: Types in the genus group

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Chapter 16: Types in the species group

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Chapter 17: The International Commission on Zoological Nomenclature

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Chapter 18: Regulations governing this code




Appendix A: Code of Ethics

Appendix B: General Recommendations

Constitution of the ICZN