Requested reference
Chamberlin, R. V. (1947). A summary of the known North American Amaurobiidae. Bulletin of the University of Utah 38(8): 1-31. 
-- Show included taxa
Chamberlin, R. V. (1947). A summary of the known North American Amaurobiidae. Bulletin of the University of Utah 38(8): 1-31. -- Show included taxa