original descriptionDemange, J.-M. (1970). Myriapodes Diplopodes de Madère et des Açores. Boletim do Museu Municipal do Funchal, 25: 5-43 page(s): 23 [details]
additional sourceRead, H. J. (2007). The millipede genus Cylindroiulus Verhoeff, 1894 in north-west Spain and northern Portugal: recent records and descriptions of four new species (Diplopoda, Julida, Julidae). Graellsia, 63(2): 279-294 page(s): 290 [details]
additional sourceKime, R. D.; Enghoff, H. (2017). Atlas of European millipedes 2: Order Julida (Class Diplopoda). <em>European Journal of Taxonomy.</em> 346: 1–299., available online athttps://doi.org/10.5852/ejt.2017.346 page(s): 57; note: This species was described from São Miguel and originally supposed to be endemic in the Azores but
has been found more recently in nine locations in Galicia, most of which are given in Read (2007). ...
This species was described from São Miguel and originally supposed to be endemic in the Azores but
has been found more recently in nine locations in Galicia, most of which are given in Read (2007). It
will most probably occur in Portugal.