Requested reference
Emerton, J. H. (1920). Catalogue of the spiders of Canada known to the year 1919. Transactions of the Royal Canadian Institute, Toronto 12: 309-338. 
-- Show included taxa
Emerton, J. H. (1920). Catalogue of the spiders of Canada known to the year 1919. Transactions of the Royal Canadian Institute, Toronto 12: 309-338. -- Show included taxa