Elachistocleis pearsei (Ruthven, 1914)

Class: Amphibia > Order: Anura > Family: Microhylidae > Subfamily: Gastrophryninae > Genus: Elachistocleis > Species: Elachistocleis pearsei

Hypopachus pearsei Ruthven, 1914, Proc. Biol. Soc. Washington, 27: 77. Holotype: UMMZ 45571, by original designation. Type locality: "vicinity of Fundacion, [Sierra Santa Marta,] Colombia".

Elachistocleis pearseiDunn, 1944, Caldasia, 2: 524; de Sá, Streicher, Sekonyela, Forlani, Loader, Greenbaum, Richards, and Haddad, 2012, BMC Evol. Biol., 12(241): 1–21.

Relictivomer pearseiCarvalho, 1954, Occas. Pap. Mus. Zool. Univ. Michigan, 555: 13.

Engystoma pearsei — Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 216. 

English Names

Colombian Plump Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 92).


Tonosi and Pedasi Districts, Azuero Peninsula, Panama, through the Caribbean drainage of Colombia and into the Maracaibo drainage of northwestern Venezuela.


Barrio-Amorós, 1999 "1998", Acta Biol. Venezuelica, 18: 58, expected this species to be found in the Maracaibo Basin of Venezuela. Infante-Rivero, Rojas-Runjaic, and Barrio-Amorós, 2006, Herpetol. Rev., 37: 102–103, subsequently provided a voucher for the Maracaibo Lake drainage. Köhler, 2011, Amph. Cent. Am.: 289, provided a brief summary of natural history and provided a range map and photograph for this species (as Nelsonophryne aterrima). Flores, Peña, and Rivas, 2017, Herpetol. Rev., 48: 118–119, provided a range extension to Cerro Hoya National Park, Mariato District, Veraguas, Panama, and discussed the range. See Barrio-Amorós, Rojas-Runjaic, and Señaris, 2019, Amph. Rept. Conserv., 13 (1: e180): 103, for comments on range and literature. See Jowers, Othman, Borzée, Rivas-Fuenmayor, Sánchez-Ramírez, Auguste, Downie, Read, and Murphy, 2021, Organisms Divers. Evol., 21: 189–206, for discussion of molecular phylogenetics and identification of this species and a provisional range map. Kovacs and Nordseth, 2021, Herpetol. Rev., 52: 342, provided records from Pedasi and Tonosi Districts, Azuero Peninsula, Panama. 

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