Chamberlin, R. V. (1943). On some genera and species of American millipeds. Bulletin of the University of Utah, Biological series, 8(2): 1-20 page(s): 10 [details]
original descriptionChamberlin, R. V. (1943). On some genera and species of American millipeds. Bulletin of the University of Utah, Biological series, 8(2): 1-20 page(s): 10 [details]
additional sourceShelley, R. M.; Smith, J. M. (2016). Parajulid milliped studies XII: Initial assessment of <em>Ptyoiulus</em> Cook 1895 and neotype designations for <em>Julus impressus</em> Say 1821 and <em>J. montanus</em> Cope 1869 (Diplopoda: Julida). <em>Insecta Mundi.</em> (0522): 1-21., available online athttps://digitalcommons.unl.edu/insectamundi/1027/ page(s): 15 [details] Available for editors
additional sourceHoffman, R. L. (1999). Checklist of the millipedes of North and Middle America. <em>Virginia Museum of Natural History, special publication.</em> 8: 1-584. page(s): 162 [details]
Present Inaccurate Introduced: alien Containing type locality