Sierwald, P., & Mauriès, J.-P. (2017).

Importance: nomenclatural action to restrict the submission of superfluous generic names 

Tomogonopus (Diplopoda, Spirostreptida, Spirostreptidae) a replacement name for Umbraticus Özdikmen, 2009 (Spirostreptida, Spirostreptidae)

. Zootaxa, 4299(1), 135–136. https://doi.org/10.11646/zootaxa.4299.1.9