Figure 5 from: Alonso A, Prieto CE, Quiñonero-Salgado S, Rolán E (2018) A morphological gap for Iberian Zospeum filled: Zospeum percostulatum sp. n. (Gastropoda, Eupulmonata, Carychiidae) a new species from Asturias (Spain). Subterranean Biology 25: 35-48. https://doi.org/10.3897/subtbiol.25.23364

Figure 5 Tridimensional plot of main conchological parameters (SH, SW and BWH) of Zospeum vasconicum, Z. zaldivarae and Z. percostulatum sp. n. (data in Excel files of C. Prieto). Note the holotype (violet dot) and the smaller shells from Cueva Collubina (orange). Note also that a large shell of Z. zaldivarae (described in Prieto and Gómez 1985) and a slender, teratological shell of Z. vasconicum lie outside their circumscribing ellipses.