Requested reference
Pickard-Cambridge, F. O. (1897a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 1-40. 
-- Show included taxa
Pickard-Cambridge, F. O. (1897a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 1-40. -- Show included taxa