Requested reference
Pickard-Cambridge, F. O. (1899a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 41-88. 
-- Show included taxa
Pickard-Cambridge, F. O. (1899a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 41-88. -- Show included taxa