A new species of Trachycephalus from the Brazilian Amazon Rain Forest, morphologically similar to T. hadroceps (Duellman and Hoogmoed), is described. This new species is characterized by having the skin not co-ossified with the skull; skin on dorsum bearing many low and medium round tubercles; a vocal sac not externally visible; well-developed paratoid gland; snout rounded in profile; third finger disc almost the same size of the eye; absence of tarsal fold; iris pinkish-beige with a horizontal dark gray bar; dorsal color pattern in life light brownish-orange with scattered brown dots. Trachycephalus hadroceps is restricted to the left margin (north) of the Amazon River, in the Guiana Shield, and possibly in the adjacent Brazilian Amazon Rain Forest, and the new species occurs on the right margin (south) of the Amazon River. It is a canopy treefrog, which probably uses treeholes filled with water as breeding sites.
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Systematic Biology|
December 30 2013
A Second Species of Trachycephalus Tschudi (Anura: Hylidae) with a Single Vocal Sac from the Brazilian Amazon
Ivan Nunes;
Ivan Nunes
1 Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, 20940-040 Rio de Janeiro, RJ, Brazil; E-mail: (IN) ivan.nunes@yahoo.com.br; and (JPPJ) pombal@acd.ufrj.br. Send reprint requests to IN.
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Pablo Suárez;
Pablo Suárez
2 Universidade Federal do Pará, Centro de Ciências Biológicas, 66075-110 Belém, PA, Brazil; E-mail: psuarez@ufpa.br.
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Marcelo Gordo;
Marcelo Gordo
3 Universidade Federal do Amazonas, Instituto de Ciências Biológicas, 69077-000 Manaus, AM, Brazil; E-mail: projetosauim@gmail.com.
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José P. Pombal, Jr.
José P. Pombal, Jr.
1 Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, 20940-040 Rio de Janeiro, RJ, Brazil; E-mail: (IN) ivan.nunes@yahoo.com.br; and (JPPJ) pombal@acd.ufrj.br. Send reprint requests to IN.
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Copeia (2013) 2013 (4): 634–640.
Citation
Ivan Nunes, Pablo Suárez, Marcelo Gordo, José P. Pombal; A Second Species of Trachycephalus Tschudi (Anura: Hylidae) with a Single Vocal Sac from the Brazilian Amazon. Copeia 1 December 2013; 2013 (4): 634–640. doi: https://doi.org/10.1643/CH-12-102
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