International Commission on Zoological Nomenclature
 INTERNATIONAL CODE OF ZOOLOGICAL NOMENCLATURE online

Contents

Title pages

Explanatory Note on the Code

Preface to the Fourth Edition

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Introduction

Preamble

show Chapter 1 sections

Chapter 1: Zoological nomenclature

show Chapter 2 sections

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

show Chapter 3 sections

Chapter 3: Criteria of publication

show Chapter 4 sections

Chapter 4: Criteria of availability

show Chapter 5 sections

Chapter 5: Date of publication

Chapter 6: Validity of names and nomenclatural acts

  

Article 23. Principle of priority

  

  

23.1. Statement of the principle of priority

  

  

23.2. Purpose

  

  

23.3. Application to synonymy

  

  

23.4. Application to homonymy

  

  

23.5. Application to spellings

  

  

23.6. Application to nomenclatural acts

  

  

23.7. Application to collective groups and ichotaxa

  

  

23.8. Application to species-group names established on hybrids

  

  

23.9. Reversal of precedence

  

  

23.10. Erroneous reversal of precedence

  

  

23.11. Application of strict priority desired

  

  

23.12. Names rejected under former article 23b

  

Article 24. Precedence between simultaneously published names, spellings or acts

  

  

24.1. Automatic determination of precedence of names

  

  

24.2. Determination by the First Reviser

show Chapter 7 sections

Chapter 7: Formation and treatment of names

show Chapter 8 sections

Chapter 8: Family-group nominal taxa and their names

show Chapter 9 sections

Chapter 9: Genus-group nominal taxa and their names

show Chapter 10 sections

Chapter 10: Species-group nominal taxa and their names

show Chapter 11 sections

Chapter 11: Authorship

show Chapter 12 sections

Chapter 12: Homonymy

show Chapter 13 sections

Chapter 13: The type concept in nomenclature

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Chapter 14: Types in the family group

show Chapter 15 sections

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

show Chapter 18 sections

Chapter 18: Regulations governing this code

Glossary

Summary

Appendices

Appendix A: Code of Ethics

Appendix B: General Recommendations

Constitution of the ICZN

Index

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