Requested reference
Koch, C. L. (1837a). Die Arachniden. C. H. Zeh'sche Buchhandlung, Nürnberg, Dritter Band, pp. 105-119, pl. 106-118 (f. 246-252); Vierter Band, pp. 1-108, pl. 119-138 (f. 253-318). [for the correct year of publication see Brignoli, 1985b] doi:10.5962/bhl.title.43744 -- Show included taxa