title: Re-establishment of the genus Monostichodus Vaillant 1886 (Characiformes, Distichodontidae).
abstract: Pellegrin rejected the validity of Monostichodus elongatus, described by Vaillant and type species of the genus Monostichodus, based on the lack of a proper species description, and redescribed Vaillant's specimens as Hemistichodus vaillanti. After review of the relevant articles in the International Code of Zoological Nomenclature, however, no arguments were found to consider M. elongatus as a nomen nudum. This implies that Hemistichodus should be considered as a junior synonym of the genus Monostichodus, which includes three valid species: M. elongatus (with Hemistichodus vaillanti as a junior synonym), M. mesmaekersi and M. lootensi.
authors.affiliation: Royal Museum for Central Africa, Biology Department, Ichthyology, Leuvensesteenweg 13, B-3080, Tervuren, Belgium.
authors.forename: T
authors.initials: T
authors.lastname: Musschoot
authors.affiliation: Royal Museum for Central Africa, Biology Department, Ichthyology, Leuvensesteenweg 13, B-3080, Tervuren, Belgium.|University of Leuven, Laboratory of Biodiversity and Evolutionary Genomics, Charles Deberiotstraat 32, B-3000 Leuven, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Snoeks
mesh_terms: D000818:Animals; D060125:Characiformes / Q000145:classification*; D002965:Classification; D013045:Species Specificity
keywords: Hemistichodus; nomen nudum; revalidation