Hyperolius quadratomaculatus Ahl, 1931a: 127.

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 quadratomaculatus Ahl, 1931a: 127.

Holotype.

36108, "Mohorro, Deutsch-Ost-Afrika" [Mohoro (Muhoro), Pwanai Region, Tanzania], coll. Karl Grass, 22.II.1901.

Present name.

Hyperolius quadratomaculatus Ahl, 1931.

Remarks.

Depicted in Ahl (1931b: 413, fig. 285). The Imperial District Administrator Graß (sometimes Grass) served his colonial service as forestry assessor: in 1899 at the forest bureau “Usimbe” [Rufiji District, Pwani Region, Tanzania], and from 1900 onwards at the joint forest and district administrative office “Mohorro” ( Graß 1904; Schabel 1990). Until 1901, he sent zoological specimens to ZMB (he was stationed in Africa longer).