Reference
Daniel F. Marchan, Thibaud Decaens, Dario J. Diaz Cosin, Mickael Hedde, Emmanuel Lapied, Jorge Dominguez (2020): French Mediterranean islands as a refuge of relic earthworm species: Cataladrilus porquerollensis sp. nov. and Scherotheca portcrosana sp. nov. (Crassiclitellata, Lumbricidae) – European Journal of Taxonomy – 0701: 1 - 22.