Requested reference
Pickard-Cambridge, F. O. (1899a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 41-88, pl. 2-6. [for the exact dates see Lyal, 2011] 
-- Show included taxa
Pickard-Cambridge, F. O. (1899a). Arachnida - Araneida and Opiliones. In: Biologia Centrali-Americana, Zoology. London 2, 41-88, pl. 2-6. [for the exact dates see Lyal, 2011] -- Show included taxa