title: Typification of the genus Dileptus Dujardin, 1841 (Ciliophora, Rhynchostomatia).
abstract: In their monograph of the dileptids, Vďačný and Foissner (2012) could not clarify the type species of the genus DileptusDujardin, 1841. Thus, they suggested that the problem be referred to the International Commission on Zoological Nomenclature. However, recently we discovered that Dujardin (1841) has originally typified Dileptus with Amphileptus anser sensu Ehrenberg (1838) which is in fact a misidentified Amphileptus margaritiferEhrenberg, 1833, a common species also originally classified in Dileptus. Under Article 70.3.2 of the Code, Dileptus margaritifer (Ehrenberg, 1833) Dujardin, 1841, thoroughly redescribed by Foissner et al. (1995), is now the type of Dileptus. This has the great advantages of historical continuity and that new combinations (names) are not required.
authors.affiliation: Consulting Engineering Office for Ecology, Radetzkystrasse 10, 5020 Salzburg, Austria; University of Salzburg, FB Organismische Biologie, Hellbrunnerstrasse 34, 5020 Salzburg, Austria. Electronic address: berger.helmut@protozoology.com.
authors.forename: Helmut
authors.initials: H
authors.lastname: Berger
authors.affiliation: University of Salzburg, FB Organismische Biologie, Hellbrunnerstrasse 34, 5020 Salzburg, Austria.
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Foissner
mesh_terms: D016798:Ciliophora / Q000145:classification* / Q000166:cytology; D002965:Classification; D013045:Species Specificity
keywords: Dileptus anser; Dileptus margaritifer; Nomenclature; Pritchard (1852); Pseudomonilicaryon