Figure 32 in Etudes on iurids, II. Revision of genus Calchas Birula, 1899, with the description of two new species (Scorpiones: Iuridae)

Figure 32: Relative position of chelal trichobothrium dst in Calchas with respect to trichobothria dt and db. Trichobothrium dst mean position indicated by open circle based on 30 samples (other fixed finger trichobothria not shown). Method of measurement: dt|dst = distance between dt and dst, dst|db = distance between dst and db. Histogram of morphometric ratio shows mean (vertical bar), minimum, maximum, and standard error (black rectangle) ranges. We see two significant dst positional differences in these species: In C. birulai, trichobothrium dst is approximately at midpoint between dt and db whereas in C. nordmanni and C. gruberi, dst is considerably distal of midpoint, most exaggerated in C. gruberi.