J. L. M. Leme, “ Anatomy and Systematics of the Neotropical Strophocheiloidea (Gastropoda, Pulmonata) with the description of a new family ”, Arq. Zool., vol. 23, no. 5, pp. 295–337, May 1973, doi: 10.11606/issn.2176-7793.v23i5p295-337.