Envenomation caused by Rhopalurus amazonicus Lourenço, 1986 (Scorpiones, Buthidae) in Pará State, Brazil by Deyanira Fuentes-Silva, Alfredo P Santos Jr, Joacir Stolarz Oliveira

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Thermoregulation mode, substrate temperature and camouflage efficiency affecting defensive behavior of lizards in Amazonia by Erika SOUZA, Ana COELHO, Alfredo P. SANTOS-JR, Ricardo Alexandre KAWASHITA-RIBEIRO, Rafael de FRAGA

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Notes on the poorly known caecilian Nectocaecilia petersii (Gymnophiona: Typhlonectidae) of the Brazilian Amazon by Rafael de Fraga, Alfredo P. Santos-Jr., Erika Souza, Ricardo A. Kawashita-Ribeiro, Síria Ribeiro, Adriano O. Maciel

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Distribution extension of Phimophis guerini (Serpentes: Dipsadidae: Xenodontinae) in the Brazilian Amazon by Alfredo P. Santos-Jr, Danilo A. Almeida-Santos, Síria Ribeiro, Isla C.M. Carmargo, Ana Lúcia da Costa Prudente

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Sexual dimorphism in the South American water snake Helicops polylepis (Serpentes: Dipsadidae) by Isla Carol Marialva Camargo, Jackeline Cristina Palma Veras, Síria Ribeiro, Ricardo A. Kawashita-Ribeiro, Rafael de Fraga, Alfredo P. Santos Junior

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Increasing taxon sampling suggests a complete taxonomic rearrangement in Echinantherini (Serpentes: Dipsadidae) by Arthur D. Abegg, Arthur D. Abegg, Alfredo P. Santos, Henrique C. Costa, Jaqueline Battilana, Roberta Graboski, Fernanda S. L. Vianna, Weverton S. Azevedo, Weverton S. Azevedo, Nelson J. R. Fagundes, Nelson J. R. Fagundes, Clément M. Castille, Pedro C. Prado, Sandro L. Bonatto, Hussam Zaher, Felipe G. Grazziotin

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