Figure 19 from: Pieńkowska JR, Manganelli G, Giusti F, Hallgass A, Lesicki A (2018) Exploring Monacha cantiana (Montagu, 1803) phylogeography: cryptic lineages and new insights into the origin of the English populations (Eupulmonata, Stylommatophora, Hygromiidae). ZooKeys 765: 1-41. https://doi.org/10.3897/zookeys.765.24386

Figure 19 Box plots for shell characters of the five Monacha clades investigated. The lower and upper limits of the rectangular boxes indicate the 25th to 75th percentile range, and the horizontal line within the boxes is the median (50th percentile).