Requested reference
Tucker, R. W. E. (1923). The Drassidae of South Africa. Annals of the South African Museum 19(2): 251-437, pl. 8-11. 
-- Show included taxa
Tucker, R. W. E. (1923). The Drassidae of South Africa. Annals of the South African Museum 19(2): 251-437, pl. 8-11. -- Show included taxa