"Marburg marburgvirus" (also referred to as "Lake Victoria marburgvirus") is a virological taxon (i.e. a man-made concept) included in the genus "Marburgvirus", family "Filoviridae", order "Mononegavirales". The species has two virus members, Marburg virus (MARV) and Ravn virus (RAVV). The members of the species (i.e. the actual physical entities) are called Marburg marburgviruses. The name "Marburg marburgvirus" is derived from the city of Marburg in Hesse, West Germany (where Marburg virus was first discovered) and the taxonomic suffix "marburgvirus" (which denotes a marburgvirus species).