''Combinatio nova'',
abbreviated
An abbreviation (from Latin ''brevis'', meaning ''short'') is a shortened form of a word or phrase, by any method. It may consist of a group of letters or words taken from the full version of the word or phrase; for example, the word ''abbrevia ...
''comb. nov.'' (sometimes ''n. comb.''), is
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
for "new combination". It is used in
taxonomic biology literature when a new name is introduced based on a pre-existing name. The term should not to be confused with ', used for a previously unnamed species.
There are three situations:
* the
taxon
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...
is moved to a different genus
* an infraspecific taxon is moved to a different species
* the rank of the taxon is changed.
Examples
When an earlier named species is assigned to a different genus, the new genus name is combined with of said species, e.g. when ''Calymmatobacterium granulomatis'' was renamed ''
Klebsiella granulomatis
''Klebsiella granulomatis'' is Gram-negative, rod-shaped bacterium of the genus ''Klebsiella'' known to cause the sexually transmitted disease granuloma inguinale (or donovanosis). It was formerly called ''Calymmatobacterium granulomatis''.
It ...
'', it was referred to as ''Klebsiella granulomatis comb. nov.'' to denote it was a new combination.
See also
*
Glossary of scientific naming
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 abbreviat ...
*
Basionym
In the scientific name of organisms, basionym or basyonym means the original name on which a new name is based; the author citation of the new name should include the authors of the basionym in parentheses. The term "basionym" is used in both botan ...
*
List of Latin phrases
__NOTOC__
This is a list of Wikipedia articles of Latin phrases and their translation into English.
''To view all phrases on a single, lengthy document, see: List of Latin phrases (full)''
The list also is divided alphabetically into twenty page ...
*
Nomenclature code
Nomenclature codes or codes of nomenclature are the various rulebooks that govern biological taxonomic nomenclature, each in their own broad field of organisms. To an end-user who only deals with names of species, with some awareness that species ...
References
{{reflist
External links
Basonyms, new combinations- bacterio.cict.fr.
Botanical nomenclature
Zoological nomenclature