Iniesta, L.F.M. and Ferreira, R.L. 2014. New species of Pseudonannolene Silvestri, 1895 from Brazilian limestone caves with comments on the potential distribution of the genus in South America (Spirostreptida: Pseudonannolenidae). Zootaxa. 3846, 3 (Aug. 2014), 361–397. DOI:https://doi.org/10.11646/zootaxa.3846.3.3.