Iniesta, L. F. M.; Ferreira, R. L.

Two New Species of Pseudonannolene Silvestri, 1895 from Razilian Limestone Caves (Spirostreptida: seudonannolenidae): Synotopy of a Troglophilic and a Troglobiotic species

. Zootaxa 2013, 3702, 357–369.