Edalorhina nasuta can be distinguished from its sister taxon E. perezi by the shape and characters of the head. Edalorhina nasuta has a long, pointed, fleshy snout and weakly pronounced eyelid tubercles, while E. perezi has a short, rounded snout and very prominent tubercles on the upper eyelid (Duellman and Morales 1990). Edalorhina nasuta also has a different patterning on its back, with the warts forming an “X” pattern as opposed to parallel lines (if warts are present) in E. perezi (Dunn 1949).
Distribution and Habitat
Edalorhina nasuta is found in central Peru, in Huancabamba, Pasco Department, and Huánuco Department. Its elevational range is 220 - 1000 meters above sea level (Angulo et al. 2004).
Life History, Abundance, Activity, and Special Behaviors
Edalorhina nasuta is terrestrial, inhabiting the leaf litter of lowland rainforests. The species is rarely seen by humans, so little is known about its life history. Based on its close relation to E. perezi, it is likely that E. nasuta deposits its eggs in foam nests alongside the edges of ponds (Angulo et al. 2004).
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
The species authority for E. nasuta is George Albert Boulenger, 1912 (Boulenger 1912; Angulo et al. 2004).
The species epithet, “nasuta,” is Latin for "long-nosed".
Edalorhina nasuta is the sister taxon to E. perezi, the only other member of Edalorhina. The closest relatives of the genus, Edalorhina, are the genera Physalaemus and Pleurodema (Lourenço et al. 2000).
The two specimens use to describe E. nasuta in Duellman and Morales (1990) were collected in 1922.
Angulo, A., Salas, A., and Icochea, J. (2004). Edalorhina nasuta. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. www.iucnredlist.org. Downloaded on 04 March 2013.
Boulenger, G. A. (1912). ''Descriptions of new Batrachians from the Andes of South America, preserved in the British Museum.'' The Annals and Magazine of Natural History, Series 8, 10(56), 185-191.
Duellman, W. E., and Morales, V. R. (1990). ''Variation, distribution, and life history of Edalorhina perezi (Amphibia, Anura, Leptodactylidae).'' Studies on Neotropical Fauna and Environment, 25(1), 19-30.
Dunn, E. R. (1949). ''Notes on the South American Frog Genus Edalorhina.'' American Museum Novitates, (1416).
Lourenço, L. B., Cardoso, A. J., Recco-Pimentel, S. M. (2000). ''Cytogenetics of Edalorhina perezi (Anura, Leptodactylidae).'' Cytologia, 65, 359-363.
Written by John Cavagnaro (john.cavagnaro AT gmail.com, m.hero AT mailbox.gu.edu.au), Museum of Vertebrate Zoology, UC Berkeley
First submitted 2013-03-04
Edited by Ann T. Chang & Rudolf von May (2013-03-29)
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