Requested reference
Platnick, N. I. & Shadab, M. U. (1979a). A revision of the Neotropical spider genus Echemoides, with notes on other echemines (Araneae, Gnaphosidae). American Museum Novitates 2669: 1-22. 
-- Show included taxa
Platnick, N. I. & Shadab, M. U. (1979a). A revision of the Neotropical spider genus Echemoides, with notes on other echemines (Araneae, Gnaphosidae). American Museum Novitates 2669: 1-22. -- Show included taxa