Figure 2 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 2 Visual definitions of morphological characters and measurements used in the study A shell morphological characters B informative measurements assessed for our own specimens C radular terminology and morphological characters. Abbreviations: SW: Shell Width, SL: Truncated Shell Length, GL: Maximum Granule Length, AL: Aperture Length, AW: Aperture Width.