Figure 10 from: Jochum A, Prozorova L, Sharyi-ool M, Páll-Gergely B (2015) A new member of troglobitic Carychiidae, Koreozospeum nodongense gen. et sp. n. (Gastropoda, Eupulmonata, Ellobioidea) is described from Korea. ZooKeys 517: 39-57. https://doi.org/10.3897/zookeys.517.10154

Figure 10 - SEM-EDX spectroscopic images showing the spectrum of the elemental content in two regions of the inner shell of Koreozospeum nodongense sp. n. paratype (NMBE 534361/2). A surface of shell edge B the inner layer of the shell. Both regions (yellow +) show the presence of calcium (Ca), aluminum (Al), silicon (Si) and carbon (C).