Requested reference
Gertsch, W. J. & Platnick, N. I. (1975). A revision of the trapdoor spider genus Cyclocosmia (Araneae, Ctenizidae). American Museum Novitates 2580: 1-20. 
-- Show included taxa
Gertsch, W. J. & Platnick, N. I. (1975). A revision of the trapdoor spider genus Cyclocosmia (Araneae, Ctenizidae). American Museum Novitates 2580: 1-20. -- Show included taxa