Requested reference
Pickard-Cambridge, O. (1889d). Arachnida. Araneida. In: Biologia Centrali-Americana, Zoology. London 1, 1-56, pl. 1-8. [for the exact dates see Lyal, 2011] 
-- Show included taxa
Pickard-Cambridge, O. (1889d). Arachnida. Araneida. In: Biologia Centrali-Americana, Zoology. London 1, 1-56, pl. 1-8. [for the exact dates see Lyal, 2011] -- Show included taxa