Figure 18 from: Fehér Z, Szekeres M (2016) Taxonomic revision of the rock-dwelling door snail genus Montenegrina Boettger, 1877 (Mollusca, Gastropoda, Clausiliidae). ZooKeys 599: 1-137. https://doi.org/10.3897/zookeys.599.8168

Figure 18 - Distribution of Montenegrina helvola. Montenegrina helvola carinata (square); Montenegrina helvola helvola (diamond); Montenegrina helvola magna (inverted triangle); Montenegrina helvola ornata (triangle); Montenegrina helvola pageti (circle)