Requested reference
Kaston, B. J. (1963a). Deformities of external genitalia in spiders. Journal of the New York Entomological Society 71(1): 30-39. 
-- Show included taxa
Kaston, B. J. (1963a). Deformities of external genitalia in spiders. Journal of the New York Entomological Society 71(1): 30-39. -- Show included taxa