Requested reference
Koch, L. (1866). Die Arachniden-Familie der Drassiden. Nürnberg, Hefte 1-6, pp. 1-304. 
-- Show included taxa
Koch, L. (1866). Die Arachniden-Familie der Drassiden. Nürnberg, Hefte 1-6, pp. 1-304. -- Show included taxa