Requested reference
MacLeay, W. S. (1839). On some new forms of Arachnida. Annals of Natural History 2(7): 1-14, pl. 1-2. 
-- Show included taxa
MacLeay, W. S. (1839). On some new forms of Arachnida. Annals of Natural History 2(7): 1-14, pl. 1-2. -- Show included taxa