Christoffersen, M. L. “Diversity and Distribution of Aptodrilus, Glossodrilus, Onoreodrilus and Righiodrilus (Annelida, Clitellata, Lumbricina, Glossoscolecidae) in South America”. Gaia Scientia, vol. 2, nº 2, outubro de 2008, https://periodicos.ufpb.br/ojs2/index.php/gaia/article/view/2544.