Figure 18 from: Khalik MZ, Hendriks KP, Vermeulen JJ, Schilthuizen M (2019) Conchological and molecular analysis of the "non-scaly" Bornean Georissa with descriptions of three new species (Gastropoda, Neritimorpha, Hydrocenidae). ZooKeys 840: 35-86. https://doi.org/10.3897/zookeys.840.33326

Figure 18 Georissanephrostoma Vermeulen et al., 2015. A–KMZU/MOL 17.29 A, D shell apertural view B shell side view C shell rear view E, F shell cross-section from 3D model G, H operculum frontal and ventral view from 3D model I shell top view J protoconch side view K close up of protoconch from top at 1000 × magnification. Scale bars: 500 µm (A–I); 200 µm (J); 10 µm (K). Shell image of the apertural view (Fig. 18D) is the same as shown in Khalik et al. (2018: fig. 1K).