Itskovich, V. B., O. V. Kaluzhnaya, E. Veynberg, and D. Erpenbeck. “Endemic Lake Baikal Sponges from Deep Water. 1: Potential Cryptic Speciation and Discovery of Living Species Known Only from Fossils”. Zootaxa, vol. 3990, no. 1, July 2015, pp. 123–137, doi:10.11646/zootaxa.3990.1.7.