1. Pontifícia Universidade Católica do Rio Grande do Sul, Department of Morphophysiological Sciences, Conservation Physiology Laboratory. Avenida Ipiranga, 6681 Pd. 12, Bloco C, Sala 250 CP. 1429, Porto Alegre, RS, 90619-900, Brazil.
2. Universidade Federal do Rio Grande do Sul, Department of Zoology, Herpetology Laboratory. Campus do Vale Agronomia, Pd. 43435.1, Sala 107, Porto Alegre, RS, 91501-90, Brazil.