Hoffman, Richard L., Daniela Martinez, and Eduardo Florez D. 2011. “A New Colombian Species in the Milliped Genus Psammodesmus, Symbiotic Host for Bryophytes (Polydesmida: Platyrhacidae)”. Zootaxa 3015 (1). Auckland, New Zealand:52–60. https://doi.org/10.11646/zootaxa.3015.1.5.