Requested reference
Kraus, O. (1978). Liphistius and the evolution of spider genitalia. Symposia of the Zoological Society of London 42: 235-254. 
-- Show included taxa
Kraus, O. (1978). Liphistius and the evolution of spider genitalia. Symposia of the Zoological Society of London 42: 235-254. -- Show included taxa