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Cochranella euknemos (*)

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Classis: Amphibia
Subclassis: Lissamphibia
Ordo: Anura

Familia: Centrolenidae
Subfamilia: Centroleninae
Tribus: Cochranellini
Genus: Cochranella
Species: Cochranella euknemos

Cochranella euknemos (Savage & Starrett, 1967)

Type locality: "Costa Rica: Provincia de San José: Canton de Coronado: 1.5 km S Alto La Palma, 1500 m."

Holotype: LACM 26764.

Centrolenella euknemos Savage & Starrett, 1967
Cochranella euknemos — Ruiz-Carranza & Lynch, 1991


Savage and Starrett, 1967, Copeia, 1967: 604.
Ruiz-Carranza and Lynch, 1991, Lozania, 57: 22.
Frost, D.R. 2021. Amphibian Species of the World: an Online Reference. Version 6.1. Electronic Database accessible at American Museum of Natural History, New York, USA. DOI: 10.5531/db.vz.0001 Cochranella euknemos . Accessed on 19 May 2008.
2007 IUCN Red List of Threatened Species IUCN: Cochranella euknemos (Least Concern) Downloaded on 19 May 2008.

Vernacular names
English: San Jose Cochran Frog

Cochranella euknemos, sometimes known as the San Jose Cochran frog, is a species of frog in the family Centrolenidae. It is found in central Costa Rica and south/eastward to Panama and to the western flank of the Cordillera Occidental in Colombia (Antioquia and Chocó Departments).[2][3][4][5] Some Colombian records might apply to Cochranella mache.[2]


Cochranella euknemos are small frogs, males growing to 25 mm (0.98 in) and females to 32 mm (1.3 in) in snout–vent length. They are dorsally blue-green and a little granular, with many small whitish or yellowish spots. Ventrally they are transparent white, but with more yellow on the undersides of the arms and legs. Iris is grayish ivory. Feet are moderately webbed.[4]

In Costa Rica, males call in May–November. Egg masses are gelatinous and laid on the tips of leaves overhanging streams.[4]
Habitat and conservation

The species' natural habitats are humid lowland, premontane, and montane forests. It occurs in bushes and trees along forest-covered streams.[1] Its altitudinal range is 100–1,940 m (330–6,360 ft) asl in Colombia,[3] somewhat narrower elsewhere.[2]

Cochranella euknemos is generally threatened by deforestation in Panama,[1] and east of the Panama Canal, chytridiomycosis.[4] In Costa Rica it has declined and has not been seen since 1986, despite dedicated survey efforts, but the reasons for this decline are not currently known.[1]

IUCN SSC Amphibian Specialist Group (2020). "Cochranella euknemos". IUCN Red List of Threatened Species. 2020: e.T54960A3021342. doi:10.2305/IUCN.UK.2020-3.RLTS.T54960A3021342.en. Retrieved 17 November 2021.
Frost, Darrel R. (2019). "Cochranella euknemos (Savage and Starrett, 1967)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 6 July 2019.
Acosta Galvis, A. R. (2019). "Cochranella euknemos (Savage & Starrett, 1967)". Lista de los Anfibios de Colombia: Referencia en linea V.09.2019. Retrieved 6 July 2019.
"Cochranella euknemos Savage and Starrett 1967". Amphibians of Panama. Smithsonian Tropical Research Institute. Retrieved 19 June 2015.
Luis Humberto Elizondo C. & Federico Bolaños V. (2012). "Cochranella euknemos". Biodiversidad de Costa Rica. Instituto Nacional de Biodiversidad. Archived from the original on 19 June 2015. Retrieved 19 June 2015.

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