A. Nappo, X. Rey, D. Pellegrini, G. Bonomolo, and F. Crocetta, “Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)”, Zootaxa, vol. 4392, no. 3, pp. 567–587, Mar. 2018.