Requested reference
Platnick, N. I. & Murphy, J. A. (1984). A revision of the spider genera Trachyzelotes and Urozelotes (Araneae, Gnaphosidae). American Museum Novitates 2792: 1-30. 
-- Show included taxa
Platnick, N. I. & Murphy, J. A. (1984). A revision of the spider genera Trachyzelotes and Urozelotes (Araneae, Gnaphosidae). American Museum Novitates 2792: 1-30. -- Show included taxa