Insular species swarm goes underground: two new troglobiont Cylindroiulus millipedes from Madeira (Diplopoda: Julidae) Author Reboleira, Ana Sofia P. S. Author Enghoff, Henrik text Zootaxa 2014 3785 3 481 489 journal article 46039 10.11646/zootaxa.3785.3.9 7e8ffebd-d276-4f40-82fb-55d14269d048 1175-5326 226844 2C82B30E-8FDA-4F7B-AC49-40BD3F8383F8 Cylindroiulus sp. Studied material. Portugal , Madeira , Machico, Cavalum lava tube, H. Pieper leg., 13 September 1988 ♀. According to the vulvae, this is also a member of Cylindroiulus madeira -group, very similar to the other species here described.