Frederiksen, S. B. and Enghoff, H. (2012) “East African odontopygid millipedes 1: Five new species of Xystopyge (Attems, 1909) and a proposal for a new gonopod terminology (Diplopoda; Spirostreptida; Odontopygidae)”, Zootaxa. Auckland, New Zealand, 3485(1), pp. 69–82. doi: 10.11646/zootaxa.3485.1.5.