STATUS OF ENTRIES ON OFFICIAL LISTS AND INDEXES 



The status of works, names and nomenclatural acts on the Official Lists or Indexes is described in the Code (Article 78) as 

 follows: 



OFFICIAL LISTS: 



Status of works, names and nomenclatural acts 



A name entered in an Official List is an available name. 



A name may be placed in an Official List without any additional qualification. 



A name entered in an Official List is deemed to have an authorship, date, publication, name-bearing type and additional 

 qualifications (such as precedence) attributed to it in the relevant Opinion or Direction. 



If a name entered in an Official List is thought to be a synonym of another available name (whether in an Official List or 

 not), the Principle of Priority is to apply unless the Commission rules otherwise or has given precedence to one over the 

 other in the relevant Opinion or Direction. 



A name or nomenclatural act occurring in a work entered in the Official List of Works Approved as Available for Zoological 

 Nomenclature is subject to the provisions of the Code and to any limitation imposed by the Commission on the use of that 

 work in zoological nomenclature. 



In the introductory note to the 1958 instalment of the Official Lists it was stated that, as a result of a Paris (1948) Congress 

 decision, no name in an Official List was to be rejected in favour of some other name. This decision was not ratified by the 

 London (1958) Congress. Accordingly, it was not incorporated into the Code and lapsed from the date of publication of the 

 Code (1st Edition, 1961). 



OFFICIAL INDEXES: 



Status of names 

 A name entered in an Official Index has the status attributed to it in the relevant Opinion or Direction. 



OFFICIAL INDEX OF REJECTED AND INVALID WORKS 

 IN ZOOLOGICAL NOMENCLATURE: 



Status of names and nomenclatural acts occurring in works 



A name or nomenclatural act (but not information relevant to zoological nomenclature) occurring in a work entered in the 

 Official Index of Rejected and Invalid Works in Zoological Nomenclature has no availability or validity in zoological 

 nomenclature unless the Commission has ruled otherwise. 



