Ischnocnema gualteri

Ischnocnema gualteri is a species of frog in the family Brachycephalidae. It is endemic to the state of Rio de Janeiro, Brazil, and is only known from the Serra dos Órgãos ("Organ Mountains").[1][2] Common name Organ Mountains robber frog has been coined for this species.[2]

Ischnocnema gualteri
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Brachycephalidae
Genus: Ischnocnema
Species:
I. gualteri
Binomial name
Ischnocnema gualteri
(B. Lutz, 1974)
Synonyms[2]

Eleutherodactylus gualteri Lutz, 1974[3]

Etymology

The specific name gualteri honors Gualter Adolpho Lutz,[3] brother of Bertha Lutz[4] who described the species. Lutz thanks him for collecting many of the specimens as well as color photographs.[3]

Description

Adult males measure 40–44 mm (1.6–1.7 in) and females 44–51 mm (1.7–2.0 in) in snout–vent length. It is a robustly built frog with massive head, as wide as long. The tympanum is partly visible. The hind limbs are long. The digits are narrow and fringed, with the outer ones ending with a large disc. Toes have rudiments of webbing. Skin is mostly smooth but there are a few warts, particularly on the head and the upper eyelids. Dorsal coloration is brown with variable patterning. The iris is strikingly copper colored.[3]

Habitat and conservation

Its natural habitats are primary and good quality rainforests[1] at elevations of 800–1,200 m (2,600–3,900 ft) above sea level. It lives on the forest floor.[1][3]

There are no threats to this species at present.[1] It occurs in the Serra dos Órgãos National Park.[3]

Ischnocnema gualteri is only known from the Serra dos Órgãos range in Brazil

References
  1. Potsch de Carvalho-e-Silva, S.; Telles, A.M.; Gonçalves da Cruz, C.A. (2004). "Ischnocnema gualteri". IUCN Red List of Threatened Species. 2004: e.T56635A11511212. doi:10.2305/IUCN.UK.2004.RLTS.T56635A11511212.en.
  2. Frost, Darrel R. (2017). "Ischnocnema gualteri (Lutz, 1974)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 April 2017.
  3. Lutz, Bertha (1974). "Eleutherodactylus gualteri, a new species from the Organ Mountains of Brazil". Journal of Herpetology. 8 (4): 293–295. doi:10.2307/1562897. JSTOR 1562897.
  4. Benchimol, Jaime L.; Sá, Magali Romero; Andrade, Márcio Magalhães de; Gomes, Victor Leandro Chaves (2003). "Bertha Lutz e a construção da memória de Adolpho Lutz" [Bertha Lutz and the memory of Adolpho Lutz]. História, Ciências, Saúde-Manguinhos (in Portuguese). 10 (1): 203–250. doi:10.1590/S0104-59702003000100007. PMID 12901387.
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