World Spider Catalog

Esyunin, S. L. & T. K. Tuneva, 2002. A review of the family Gnaphosidae in the fauna of the Urals (Aranei), 1. Genera Drassodes Westring, 1851 and Sidydrassus gen.n. Arthropoda Selecta 10: 169-180. (PDF not available.)