Requested reference
Hahn, C. W. (1833a). Die Arachniden. C. H. Zeh'sche Buchhandlung, Nürnberg, Erster Band, pp. 77-129, pl. 19-36 (f. 57-95); Zweiter Band, pp. 1-16, pl. 37-47 (f. 96-105). [for the correct year of publication see Brignoli, 1985b] doi:10.5962/bhl.title.43744 -- Show included taxa