Requested reference
Gertsch, W. J. & Platnick, N. I. (1980). A revision of the American spiders of the family Atypidae (Araneae, Mygalomorphae). American Museum Novitates 2704: 1-39. 
-- Show included taxa
Gertsch, W. J. & Platnick, N. I. (1980). A revision of the American spiders of the family Atypidae (Araneae, Mygalomorphae). American Museum Novitates 2704: 1-39. -- Show included taxa