In zoological nomenclature, the valid name of a taxon is the sole correct scientific name. The valid name should be used for that taxon, instead of any other name that may currently be being used, or may previously have been used. A name name is valid when, and only when, it is in harmony with all the relevant rules listed in the International Code of Zoological Nomenclature (ICZN).A valid name is the correct zoological name of a taxon.
In contrast, a name which violates the rules of the ICZN is known as an invalid name. An invalid name is not considered to be the correct scientific name for a taxon.
There are numerous different kinds of invalid names.
Subjectively invalid names are names that have been rendered invalid by individual scientific judgement or opinion. Taxonomists may differ in their opinion, and names considered invalid by one researcher may be considered valid by another; thus these are still potentially valid names.
Objectively invalid names are names that have been rendered invalid for factual reasons. These names are universally accepted as invalid, and are not merely a matter of individual opinion, as is the case with subjectively invalid names.
Under the International Code of Nomenclature for algae, fungi, and plants, the term validly published name has a different meaning that corresponds to zoology's available name.The botanical equivalent of zoology's term "valid name" is correct name.
A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the International Commission on Zoological Nomenclature. The rules principally regulate:
In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon.
Montifringilla is a genus of passerine birds in the sparrow family Passeridae. It is one of three genera containing the snowfinches. As the English and scientific names suggest, these are high-altitude species, found in the mountain ranges of southern Eurasia, from the Pyrenees east to the Himalayas, Tibet and western China.
A conserved name or nomen conservandum is a scientific name that has specific nomenclatural protection. That is, the name is retained, even though it violates one or more rules which would otherwise prevent it from being legitimate. Nomen conservandum is a Latin term, meaning "a name to be conserved". The terms are often used interchangeably, such as by the International Code of Nomenclature for Algae, Fungi, and Plants (ICN), while the International Code of Zoological Nomenclature favours the term "conserved name".
A nomen oblitum is a technical term, used in zoological nomenclature, for a particular kind of disused scientific name.
In scientific nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name, although the term is used somewhat differently in the zoological code of nomenclature. For example, Linnaeus was the first to give a scientific name to the Norway spruce, which he called Pinus abies. This name is no longer in use: it is now a synonym of the current scientific name, Picea abies.
This is a list of terms and symbols used in scientific names for organisms, and in describing the names. For proper parts of the names themselves, see List of Latin and Greek words commonly used in systematic names. Note that many of the abbreviations are used with or without a stop.