A tautonym is a taxonomic designation, like "Gorilla gorilla", in which these 2 classifications are the same
a taxonomic designation that is identical to another one of the same 
rank, but... [DOC] [TLE] International Code of Nomenclature for Algae, Fungi, and ... - Revolvy [PAR] The lower-case for "algae, fungi, and plants" indicates that these terms are not ...