Figure 3 from: Betters MJ, Cordes EE (2024) New records of Provanna (Gastropoda, Provannidae) from the Costa Rica Margin and an identification key for the genus. ZooKeys 1189: 1-32. https://doi.org/10.3897/zookeys.1189.109734

Figure 3 . Examples of Provanna shell morphological variety AP. kuroshimensis, no sculpturing, growth lines present, flattened suture B–F constricted suture: BP. cooki, spiral sculpture only, no sculptural elements CP. chevalieri, axial sculpture only, no sculptural elements D–F both axial and spiral sculpturing: DP. fenestrata, sculptures about equal in strength, no sculptural elements EP. clathrata, axial sculpture stronger than spiral, blunt, sloping nodules FP. reticulata, spiral sculpture stronger than axial, minor spines.