Hyperolius decoratus Ahl, 1931a: 78.

Tillack, Frank, Ruiter, Ronald de & Roedel, Mark-Oliver, 2021, 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, Zoosystematics and Evolution 97 (2), pp. 407-450 : 407

Hyperolius decoratus Ahl, 1931a: 78.

Lectotype.

ZMB 36112, “Longa” [Longa River, Angola], coll. Ludwig J. Brühl or Otto Gleim.

Paralectotypes.

ZMB 31905-31906, “Angola”, coll. Brühl; ZMB 38255 and ZMB 77797 (formerly part of ZMB 38255), "Longa, Angola", coll. Brühl or Gleim; ZMB 77752, “Angola” coll. Gleim.

Present name.

Hyperolius angolensis Steindachner, 1867 (fide Marques et al. 2018).

Remarks.

Lectotype designation by Perret (1962). Another paralectotype MCZ A-17632 from “Longa”, coll. Brühl and Gleim, was sent in exchange from ZMB in 1932 ( Barbour and Loveridge 1946: 127). Drawing in Ahl (1931b: 352, fig. 227). Ahl (1931a: 80) stated that seven specimens were collected by “Brühl and Gleim". However, these two people were not active in Angola at the same time (see below). It is possible that specimens of both collectors were stored together. Thus, it is no longer possible to assign the specimens to one collector.

Gleim was Deputy Governor of the German Colony of Togo from 1896 to 1898. From 1899, he was sent to São Paolo de Loanda by the "Kolonialabteilung des Auswärtigen Amtes", where he served as the first professional consul for Angola and French Congo. From 1910 to 1911 he was Governor of Cameroon ( Schnee 1920a). On his return from Angola to Germany in 1901, he donated various collections of vertebrates and invertebrates to ZMB. In 1928 Prof. Dr. Brühl, at that time custodian at the Institut für Meereskunde Berlin, donated the insects and vertebrates he collected in Mossamedes (Angola) from 1922 to 1923 to ZMB.