Hyperolius bicolor Ahl, 1931

Class: Amphibia > Order: Anura > Family: Hyperoliidae > Subfamily: Hyperoliinae > Genus: Hyperolius > Species: Hyperolius bicolor

Hyperolius bicolor  Ahl, 1931, Mitt. Zool. Mus. Berlin, 17: 129. Syntypes: ZMB unnumbered, according to the original publication; lost according to Laurent, 1985, in Frost (ed.), Amph. Species World: 208, and  Tillack, de Ruiter, and Rödel, 2021, Zoosyst. Evol., Berlin, 97: 441, who noted that the description by Ahl, 1931, Das Tierreich, 55: 414,  was not the earlier publication. Type locality: "Farenda Bango, Loanda", Angola. The description in Ahl, 1931, Mitt. Zool. Mus. Berlin, 17: 129, appeared a few weeks later according to unpublished notes by A. Loveridge (fide R. Laurent).

English Names

Two-colored Reed Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 66).


Known only from the type locality (Farenda Bango, Loanda, Angola).

Geographic Occurrence

Natural Resident: Angola

Endemic: Angola


Probably a synonym of Hyperolius marmoratus insignis Bocage, 1867 (Laurent, 1985, in Frost (ed.), Amph. Species World: 208). Junior secondary homonym of Hyperolius bicolor (Gray, 1842) (= Litoria bicolor).Because the only specimen, the holotype, is lost the taxonomic status will be difficult to assess according to Marques, Ceríaco, Blackburn, and Bauer, 2018, Proc. California Acad. Sci., Ser. 4, 65 (Suppl. II): 96, who provided a map for Angola and a brief account. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 396, regarded this nominal taxon as too insufficiently known to treat adequately in their field guide. Not addressed by Portik, Bell, Blackburn, Bauer, Barratt, Branch, Burger, Channing, Colston, Conradie, Dehling, Drewes, Ernst, Greenbaum, Gvoždík, Harvey, Hillers, Hirschfeld, Jongsma, Kielgast, Kouete, Lawson, Leaché, Loader, Lötters, van der Meijden, Menegon, Müller, Nagy, Ofori-Boateng, Ohler, Papenfuss, Rößler, Sinsch, Rödel, Veith, Vindum, Zassi-Boulou, and McGuire, 2019, Syst. Biol., 68: 859–875. 

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