Requested reference
Pickard-Cambridge, F. O. (1903a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 425-464. 
-- Show included taxa
Pickard-Cambridge, F. O. (1903a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 425-464. -- Show included taxa