(ofHexaglena cryptocephalus McNeill, 1887)McNeill, J. (1887). Description of twelve new species of Myriopoda chiefly from Indiana. Proceedings of the United States National Museum, 10: 328-334 page(s): 328 [details]
original description(ofPolyzonium divaricatum Loomis, 1971)Loomis, H. F. (1971). The diplopod genus Polyzonium in North America. Florida Entomologist, 54: 151-163 page(s): 157 [details]
original description(ofHexaglena cryptocephalus McNeill, 1887)McNeill, J. (1887). Description of twelve new species of Myriopoda chiefly from Indiana. Proceedings of the United States National Museum, 10: 328-334 page(s): 328 [details]
Present Inaccurate Introduced: alien Containing type locality