Ceron, K., and D. J. Santana. “The Tadpole of Physalaemus nanus (Boulenger, 1888) (Anura, Leptodactylidae) from Southern Brazil”. Zootaxa, vol. 4277, no. 2, June 2017, pp. 280–284, doi:10.11646/zootaxa.4277.2.9.