Trichobatrachus robustus Boulenger, 1900, Proc. Zool. Soc. London, 1900: 443. Syntypes: BMNH (2 specimens), by original designation. Type locality: "Benito River", elsewhere in the original publication suggested to be "Benito River, north of the Gaboon River between 20 and 30 miles inland from the coast, Gaboon", Equatorial Guinea.
Astylosternus robustus — Noble, 1924, Bull. Am. Mus. Nat. Hist., 49: 319. Cochran, 1961, Living Amph. World: 159.
Hairy Frog (Cochran, 1961, Living Amph. World: 159; Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 130; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 38).
Osomba Hills (southeastern Nigeria) to Mayombe Hills (Dem. Rep. Congo) and Gabon through western and southwestern Cameroon and Equatorial Guinea; presumably in Rep. Congo and Cabinda enclave, Angola.
See brief account in Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 381-382. Gabon record by Lötters, Gossmann, Obame, and Böhme, 2001, Herpetofauna, Weinstadt, 23: 22. Lasso, Rial, Castroviejo, and De la Riva, 2002, Graellsia, 58: 21-34, provided notes on ecological distribution in Equatorial Guinea. Schiøtz, 1963, Vidensk. Medd. Dansk Naturhist. Foren., 125: 48-49, provided records for Nigeria.
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