A paper with a description of a new Thaumastus species from southern Brazil has just been published (Colley, 2012).
It describes a new species from Paran??, S??o Jos?? dos Pinhais e Guaratuba, Hydro-electric Powerplant Guaricana, Thaumastus straubei n.sp., for which also the anatomy (mandibula, radula and genitalia) is described. The holotype is in the Rio de Janeiro museum (MNRJ 11890).
Colley, E., 2012. Nova esp??cie de Thaumastus da Floresta Atl??ntica do Paran??, Brasil (Mollusca, Gastropoda, Pulmonata, Bulimuloidea). – Iheringia 102: 43-47.