In zoology, a subspecific name is the third part of a trinomen. In zoology there is only one rank below that of species, namely "subspecies". The International Code of Zoological Nomenclature (ICZN) is a set of rules in zoology that have one fundamental aim: to provide the maximum universality and continuity in classifying all animals according to taxonomic judgment. ... In zoology, a taxon is usually assigned to a rank in a hierarchy. ...
The name of a subspecies is a trinomen, a trinominal name, i.e. a name that consists of three names: generic name, specific name and subspecific name. The subspecific name is written like the specific name: without capitalisation but typeset in italics. In biological nomenclature, a generic name or the name of a genus (sometimes genus name) is the name of a genus. ... In zoological nomenclature, a specific name is the second part (second name) in the name of a species (a binomen). ... In zoological nomenclature, a specific name is the second part (second name) in the name of a species (a binomen). ...