Requested reference
Pickard-Cambridge, F. O. (1901a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 193-312. 
-- Show included taxa
Pickard-Cambridge, F. O. (1901a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 193-312. -- Show included taxa