N. Akkari, J. D. Gilgado, V. M. Ortuño, and H. Enghoff, “Out of the dark void: Ommatoiulus longicornis n. sp., a new julid from Spain (Diplopoda, Julida) with notes on some troglobiomorphic traits in millipedes”, Zootaxa, vol. 4420, no. 3, pp. 415–429, May 2018.