Glossary

subspecies

Taxonomic rank below species, written in the form of a trinomen. Often applied to a geographically-separated population within a species that retains the capability to produce fertile offspring with other populations but may exhibit phenotypic differences.

Used in 78 species profiles

Related terms

designation
In icthyology, the nomenclatural act by which the type specimen of a previously or newly-established genus, subgenus, species, or subspecies is fixed via an express statement.
fertile
Capable of reproduction.
holotype
The single specimen designated as the name-bearing type of a nominal species or subspecies.
phylogenetic species concept
Species concept based on the evolutionary relationships among organisms, specifically using common ancestry and shared evolutionary history to define species. Under this concept a species is essentially the smallest group of organisms that share a common ancestor and can be distinguished from other such groups via phylogenetic analyses. Each such grouping constitutes a distinct branch on an evolutionary tree. Subspecies tend not to be recognised and it is generally less restrictive than the biological species concept. Often abbreviated to PSC.
race
Genealogical line or lineage. Sometimes used as an infrasubspecific category, i.e., below the subspecies level, to refer to populations or individuals which are not given taxonomic names.
taxonomic
Of or relating to taxonomy.
trinomen
Combination of generic name, specific, and subspecific names which together form the name of a subspecies.
type series
Series of specimens which either constitutes the name-bearing type of a nominal species or subspecies, or from which the name-bearing type has been or may be designated

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