Figure 8 from: K. Klishko O, Lopes-Lima M, Froufe E, Bogan A (2014) Are Cristaria herculea (Middendorff, 1847) and Cristaria plicata (Leach, 1815) (Bivalvia, Unionidae) separate species? ZooKeys 438: 1-15. https://doi.org/10.3897/zookeys.438.7493 - K. Klishko, Olga (2014)