Caramaschi, U., de Pádua Almeida, A. and Gasparini, J. L. (2009) “Description of two new species of Sphaenorhynchus (Anura, Hylidae) from the State of Espírito Santo, Southeastern Brazil”, Zootaxa. Auckland, New Zealand, 2115(1), pp. 34–46. doi: 10.11646/zootaxa.2115.1.3.