A tautonym is a taxonomic designation, like "Gorilla gorilla", in which these 2 classifications are the same
[DOC] [TLE] Tautonyms - definition of tautonyms by The Free Dictionary [PAR] A taxonomic designation, such as Gorilla gorilla, in which the genus and species 
... a botanical or zoological name in which the two terms, the generic name and 
the specific, are the same (a practice no longer ... See also: Classification ... find 
what he called NAUTONYMS, "sounded but not spelled tautonyms like RETREAT
".