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

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Chapter 7: Formation and treatment of 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

Chapter 11: Authorship


Article 50. Authors of names and nomenclatural acts



50.1. Identity of authors



50.2. Authorship of names in reports of meetings



50.3. Authorship unaffected by changes in rank or combination



50.4. Authorship of justified emendations



50.5. Authorship of unjustified emendations



50.6. Authorship of a name published simultaneously by different authors



50.7. Authorship of names first published as junior synonyms


Article 51. Citation of names of authors



51.1. Optional use of names of authors



51.2. Form of citation of authorship



51.3. Use of parentheses around authors' names (and dates) in changed combinations

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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