Abstract
The external morphology and internal oral features of Physalaemus fuscomaculatus (Steindachner, 1864) tadpoles are described and compared with other species in the Physalalemus biligonigerus group (Lynch, 1970). Tadpoles of P. fuscomaculatus have a morphology similar to other species within this group and closely resemble those of P. santafecinus Barrio, 1965 and P. biligonigerus (Cope, 1861). The tadpole of P. fuscomaculatus differs from those of the biligonigerus group by the following characters: i) proportionally shorter tail compared to total length, ii) presence of two narrow ventral gaps on marginal papillae of the oral disc; iii) upper jaw sheath Mshaped; iv) presence of two lingual papillae; v) two to three prepocket papillae, and vi) three to five pustulations anterior to each buccal pocket. This is the first record of Physalaemus fuscomaculatus in southeastern Brazil.References
Altig, R. & Jonhston, G.F. (1986) Major characteristics of free-living anuran tadpoles. Smithsonian Herpetological Information Service, 67, 1–75.
Altig, R. & Johnston, G.F. (1989) Guilds of anuran larvae: relationships among developmental modes, morphologies, and habitats. Herpetological Monographs, 3, 81–109.
Altig, R. & McDiarmid, R.W. (1999a) Diversity: Familial and Generic Characterizations. In: McDiarmid, R.W. & Altig, R. (Eds.) Tadpoles. The Biology of Anuran Larvae. University of Chicago Press, Chicago and London, pp. 295–337.
Altig, R. & McDiarmid, R.W. (1999b) Body Plan: Development and Morphology. In: McDiarmid, R.W. & Altig, R. (Eds.) Tadpoles. The biology of anuran larvae. University of Chicago Press, Chicago and London, pp. 24–51.
Azevedo-Ramos, C., Van Sluys, M., Hero, J.M. & Magnusson, W.E. (1992) Influence of tadpole movement on predation by odonate naiads. Journal of Herpetology, 26(3), 335–338.
Buskirk, J.V. (1988) Interactive effects of dragonfly predation in experimental ponds communities. Ecology, 69(3), 857–867.
Fernandez, K. & Fernandez, M. (1921) Algunos Batracios Argentinos. I. Cystignathidae. Imprenta y Casa Editora “Cony”, Buenos Aires, 46 pp.
Frost, D.R. (2002) Amphibians Species of the World: an Online Reference. American Museum of Natural History, New York, New York. Available from http://research.amnh.org/herpetology/amphibia (accessed 1 August 2003)
Gosner, K.L. (1960) A simplified table for staging anuran embryos and larvae with notes on identification. Herpetologica, 16, 183–190.
Heyer, W.R., McDiarmid, R.W. & Weigmann, D.L. (1975) Tadpoles, predation and pond habitats in the tropics. Biotropica, 7(2), 100–111.
Hoff, K. vS, Blaustein, A.R., McDiarmid, R.W. & Altig, R. (1999) Behavior: Interactions and their consequence. In: McDiarmid, R.W. & Altig, R. (Eds.) Tadpoles. The Biology of Anuran Larvae. University of Chicago Press, Chicago and London, pp. 215–239.
Jeppson, L.R., Keifer, H.H. & Baker, E.W. (1975) Mites Injurious to Economic Plants. University of California Press, Berkeley, 641pp.
Johnston, G.F. & Altig, R. (1986) Identification characteristics of anuran tadpoles. Herpetological Review, 17, 36–37.
Lynch, J.D. (1970) Systematics status of the american Leptodactylid frog genera Engystomops, Eupemphix and Physalaemus. Copeia, 1970, 488–496.
McDiarmid, R.W. & Altig, R. (1999) Tadpoles. The Biology of Anuran Larvae. The University of Chicago Press, Chicago and Londres, 444 pp.
Pearman, P.B. (1995) Effects of pond size and consequent predator density on two species of tadpoles. Oecologia, 102, 1–8.
Perotti, M.G. & Céspedez, J.A. (1999) The tadpole of Physalaemus santafecinus, with comments on the buccopharyngeal morphology. Journal of Herpetology, 33(2), 312–315.
Rossa-Feres, D.C. (1997) Ecologia de uma Comunidade de Anfíbios Anuros da Região Noroeste do Estado de São Paulo: Microhábitat, Sazonalidade, Dieta e Nicho Multidimensional. Instituto de Biociências da Universidade Estadual Paulista, Rio Claro, 178pp.
Spirandeli-Cruz, E.F. (1991) Estudo Comparativo da Morfologia Oral Interna de Larvas de Anfíbios Anuros que Ocorrem na Região de Botucatu, São Paulo (Amphibia, Anura). Instituto de Biociências da Universidade de São Paulo, São Paulo, 237pp.
Wassersug, R.J. (1976) Oral morphology of anuran larvae: terminology and general description. Occasional Papers of the Museum of Natural History University of Kansas, 48, 1–23.
Wassersug, R.J. & Heyer, W.R. (1988) A survey of internal oral features of leptodactyloid larvae (Amphibia: Anura). Smithsonian Contributions to Zoology, 457, 1–99.
Vizotto, L.D. (1967) Desenvolvimento de Anuros da Região Norte-Ocidental do Estado de São Paulo. Tipografia Rio Preto, São José do Rio Preto, Brazil, 161 pp.