original description
(of Platyrrhacus stenopterus Brölemann, 1905) Brölemann, H. W. (1905). Myriapodes de Costa-Rica recueillis par M. le professeur P. Biolley. IIe mémoire. <em>Annales de la Société entomologique de France.</em> 74: 337-380. Paris., available online at http://biodiversitylibrary.org/page/32495264
page(s): 343; note: genus name mispelled [details]
additional source
Recuero, E.; Sánchez-Vialas, A. (2018). A new distinctive species of Barydesmus (Diplopoda, Polydesmida, Platyrhacidae) from Ecuador, with an annotated bibliographical checklist of the American Platyrhacidae. <em>Zootaxa.</em> 4482(2): 245-273., available online at https://doi.org/10.11646/zootaxa.4482.2.2
page(s): p. 259 [details] Available for editors 
From editor or global species database