Figure 1 from: Foon JK, Liew T-S (2017) A review of the land snail genus Alycaeus (Gastropoda, Alycaeidae) in Peninsular Malaysia. ZooKeys 692: 1-81. https://doi.org/10.3897/zookeys.692.14706

Figure 1 - An illustrated synopsis of the framework for species description based on 39 shell and operculum features (excluding shell colour and living animal colour). Number codes ascribed to each character are linked to descriptions and measurement methods outlined in Table 1.