Requested reference
Chamberlin, R. V. (1949). On some American spiders of the family Erigonidae. Annals of the Entomological Society of America 41(4, 1948): 483-562. doi:10.1093/aesa/41.4.483 
-- Show included taxa
Chamberlin, R. V. (1949). On some American spiders of the family Erigonidae. Annals of the Entomological Society of America 41(4, 1948): 483-562. doi:10.1093/aesa/41.4.483 -- Show included taxa