CONTENTS 



Page 



Introduction 1 



The names of genera 3 



Classification of names 3 



I. Names not accepted into our formal nomenclature 4 



A. Unprinted names 4 



B. Nomina nuda 4 



II. Names accepted into nomenclature 4 



C. Names currently accepted 4 



D. Names not currently accepted 7 



III. Name forms not accorded separate status 7 



E. Misapplied names 7 



F. Errors 8 



The principle of genotypy 8 



Genotype determination 9 



Methods of fixation of genotypes 10 



A. Fixation under the Plenary Powers 11 



1. Suspension of the Rules 11 



B. Automatic fixation 11 



2. Monotypy 11 



3. Objective synonymy 15 



4. Subsequent monotypy 15 



C. Original designation 16 



5. By direct statement 16 



6. Typicus or typus 16 



7. Absolute tautonymy 16 



8. N. g., n. sp. rule 16 



9. Combined description rule 17 



D. Subsequent designation 17 



10. Unambiguous designation 17 



11. Acceptance of a supposed prior designation 19 



Summary of principles 20 



Method and arrangement 20 



A. List of generic names 21 



1 . Name and reference 21 



2. Status of name 21 



3. Genotype 23 



4. Fixation 24 



5. Later citations 24 



6. Discussion 24 



7. Synonymic homonyms 24 



8. Homonyms by misidentification 25 



9. Synonyms 25 



10. Emendations 26 



11. Variant spellings 26 



12. Notes 27 



B. Appendix of doubtful genera 27 



C. Systematic list of changes 27 



D. List of new names proposed herein 27 



E. Bibliography 27 



III 



