original description
(of Siphonophora progressor Chamberlin, 1922) Chamberlin, R. V. (1922). The millipeds of Central America. Proceedings of the United States National Museum, 60(2403): 1-75. Washington D.C., available online at https://doi.org/10.5479/si.00963801.60-2403.1
page(s): 9, pI. 3 fig. 5 - 7, pI. 4 fig. Progreso (1). 1 - 2 [details]
new combination reference
Read, H. J.; Enghoff, H. (2018). Siphonophoridae from Brazilian Amazonia Part 1 – The genus Columbianum Verhoeff, 1941 (Diplopoda, Siphonophorida). <em>European Journal of Taxonomy.</em> 477: 1-23., available online at https://doi.org/10.5852/ejt.2018.477
page(s): 7; note: Columbianum progressor (Chamberlin, 1922) comb. nov. [details]
From editor or global species database