Gomes, S. R., J. B. Picanco, I. L. Mendes, and J. W. Thome. “A New Species of Simrothula (Gastropoda, Soleolifera, Veronicellidae) from Northern Brazil”. Zootaxa, vol. 1329, no. 1, Oct. 2006, pp. 59–68, doi:10.11646/zootaxa.1329.1.4.