Fig. 5 a in Outdated but established?! Conchologically driven species delineations in microgastropods (Carychiidae, Carychium)

Fig. 5 a Range of conchological variability for the parameters shell height (x-axis) and the ratio shell height/width (y-axis). The eight most characteristic specimens per morphospecies are indicated by a circle (Carychium mariae), square (C. minimum) and triangle (C. tridentatum), respectively. Dark grey, more typical C. tridentatum specimens; light grey, more typical C. mariae specimens; typical C. minimum individuals are in between those two extremes. b Neighbor-joining