Schmelz, Collado & Roembke 2011. Mata Atlantica enchytraeids (Parana, Brazil): A new genus, Xetadrilus gen. nov., with three new species, and four new species of Guaranidrilus Cernosvitov (Enchytraeidae, Oligochaeta). Zootaxa, 2838, 29 Apr 2011: 1-29