Reproduction of C. L. Koch’s 1839 B. halius figure 382 (plate CLXIII). Right pedipalp che-lae detail from three Buthus species published in the same work: A B. paris (as Androctonus clytoneus), fig. 384 (same plate) B B. halius with an arrow pinpointing the basal lobe C B. paris, fig. 352 (pl. CLI). All images were taken as provided by the pdf copy available in the BHL, which was made available by the Ernst Mayr Library of the Museum of Comparative Zoology, Harvard University.