Figure 4 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 4 - SEM of paratype (IBSS FEB RAS 7787). A Protoconch and B–C apical whorls showing pitted pattern of microstructure and shallow suture D umbilical notch showing wrinkles behind the peristome. Scale bar increments µm.