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Gulella menkeana (Pfeiffer, 1853) is the type species of the highly diverse genus Gulella Pfeiffer, 1856 and study of its morphology and DNA is critical to our ability to define the genus sensu stricto in relation to research on the systematics of this complex genus. However, we have established that current use of the name is inconsistent with both the original description and first figure of the species. The name-bearing type is lost, and purported paratypes in the Museum für Naturkunde der Humboldt-Universität, Berlin, on which Connolly's widely-followed redescription was based, are not authentic. They have no type status and are instead specimens of Gulella albersi (Pfeiffer, 1855). Recently collected specimens conforming to Pfeiffer's description and figure of G. menkeana have been identified and a neotype is designated. This material also corresponds with the current broad interpretation of G. adamsiana (Pfeiffer, 1859), which, with its several established synonyms, we include in the synonymy of G. menkeana. There is also considerable resemblance to G. wahlbergi (Krauss, 1848), a name based on composite material and for which the lectotype is lost. We also designate a neotype for this species so as to preserve current application of the name. The possible synonymy of G. menkeana and G. wahlbergi, an older name, is of nomenclatural concern, but is not critical to the issue of defining Gulella s.s.

african invertebrates

<i>Pupa menkeana</i>Pfeiffer, 1853, Type Species of the Speciose Land Snail Genus<i>Gulella</i>Pfeiffer, 1856: Correction of Longstanding Misidentification and Designation of Neotype (Mollusca: Eupulmonata: Streptaxidae)

Pupa menkeanaPfeiffer, 1853, Type Species of the Speciose Land Snail GenusGulellaPfeiffer, 1856: Correction of Longstanding Misidentification and Designation of Neotype (Mollusca: Eupulmonata: Streptaxidae)