A type catalogue of the reed frogs (Amphibia, Anura, Hyperoliidae) in the collection of the Museum fuer Naturkunde Berlin (ZMB) with comments on historical collectors and expeditions Author Tillack, Frank Museum fuer Naturkunde Berlin, Leibniz-Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany Author Ruiter, Ronald de Nederlands Openluchtmuseum, Hoeferlaan 4, 6816 SG Arnhem, The Netherlands Author Roedel, Mark-Oliver https://orcid.org/0000-0002-1666-195X Museum fuer Naturkunde Berlin, Leibniz-Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany mo.roedel@mfn-berlin.de text Zoosystematics and Evolution 2021 2021-08-10 97 2 407 450 http://dx.doi.org/10.3897/zse.97.68000 journal article http://dx.doi.org/10.3897/zse.97.68000 1860-0743-2-407 DC2EBA6293A141938ADC2A79F7D658B9 9446F0CE40A752B4897F7B7B71BBFD29 Hyperolius ademetzi Ahl, 1931a: 37. Lectotype. ZMB 20794, "Bamenda" [Mezam Department, Northwest Region, Cameroon], coll. First Lieutenant Karl Moritz Ernst Gustav Wilhelm Adametz, VI/1909. Paralectotypes. ZMB 77729-77733 and ZMB 77749, same collecting data as for the lectotype. Present name. Hyperolius ademetzi Ahl, 1931a. Remarks. Drawing in Ahl (1931b : 296, fig. 171). Originally eight specimens according to the original publication. Lectotype designation by Perret (1962 : 244, fig. 2) who provided a photograph of the lectotype. Another paralectotype MCZ A-17626 was sent in exchange from ZMB in 1932 ( Barbour and Loveridge 1946 : 126). Adametz was a first lieutenant in the German 'Schutztruppe' for Cameroon and head of the colonial station in Bamenda. He was involved in surveying the Hinterland of the Kamerun-Nordbahn in the Bamenda region. In summer 1912, he also took part in an operation against the Baminge (Bamije-Expedition) at the eastern frontier of the present day Manyu Division, Southwest Region, Cameroon ( Nkwi 1989 ; Hoffmann 2007 ; Hafeneder 2008 ).