Cardioglossa gracilis Boulenger, 1900

Class: Amphibia > Order: Anura > Family: Arthroleptidae > Subfamily: Arthroleptinae > Genus: Cardioglossa > Species: Cardioglossa gracilis

Cardioglossa gracilis Boulenger, 1900, Proc. Zool. Soc. London, 1900: 446. Syntypes: BMNH 1947.2.30.39–43 (formerly 1900.2.17.77–81), IRSNB 1.717 (formerly BMNH 1947.2.17.82), according to Amiet, 1985, in Frost (ed.), Amph. Species World: 16, and Lang, 1990, Doc. Trav., Inst. R. Sci. Nat. Belg., 59: 6. Type locality: "Benito River", elsewhere in the original publication noted as "Benito River, north of the Gaboon River between 20 and 30 miles inland from the coast, Gaboon" (actually in Equatorial Guinea).

Astylosternus gracilis — Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 222, by implication. See comment under Cardioglossa

English Names

Rio Benito Long-fingered Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 37).

Gracile Long-fingered Frog (Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 240).


Southeastern Nigeria to northwestern Dem. Rep. Congo (and in adjacent southwestern Central African Republic) through southern Cameroon, Equatorial Guinea, and Gabon, in forested areas under 1200 m elevation; reported from Uigé Province of northwestern Angola; presumably to be found in intervening Rep. Congo


Frétey and Blanc, 2002 "2001", Bull. Soc. Zool. France, 126: 381, reported this species from Gabon. 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: 32–33, provided records for Nigeria. Jongsma, Tobi, Dixon-MacCallum, Bamba-Kaya, Yoga, Mbega, Mve Beh, Emrich, and Blackburn, 2017, Amph. Rept. Conserv., 11 (1: e144): 6, provided a record for southeastern Gabon and briefly discussed habitat and range.  Larson and Zimkus, 2018, Herpetol. Conserv. Biol., 13: 246, reported a specimen from Birougou, Gabon. Dewynter, Chirio, Melki, Cordier, and Frétey, 2017, Cah. Fondation Biotope, 11: 10, provided a brief account and photographs of this species from the Mount Koumouna-Bouali area of Gabon. Dewynter, Frétey, Jongsma, Bamba-Kaya, and Pauwels, 2018, Cah. Fondation Biotope, 18: 23, provided a brief account and photographs from the Monts Birougou area of Gabon. Dewynter and Frétey, 2019, Cah. Fondation Biotope, 27: 9, summarized the literature for Gabon and provided a photograph. Channing and Rödel, 2019, Field Guide Frogs & Other Amph. Afr.: 240–241, provided a brief account, photograph, and range map. See brief account, range map, and photographs for Equatorial Guinea in Sánchez-Vialas, Calvo-Revuelta, Castroviejo-Fisher, and De la Riva, 2020, Proc. California Acad. Sci., Ser. 4, 66: 137–230. Ernst, Lautenschläger, Branquima, and Hölting, 2020, Zoosyst. Evol., 96: 249, noted the species to occur in Uigé Province of northwestern Angola.

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