Hahn, C. W. (1831a). Die Arachniden. C. H. Zeh'sche Buchhandlung, Nürnberg, Erster Band, pp. 1-24, pl. 1-6 (f. 1-21). [for the correct year of publication see Brignoli, 1985b] doi:10.5962/bhl.title.43744 -- Show included taxa