Scatterplot of shell size (SH + SW) and spire size (SH-AH/WBW) for specimens from five samples of C. greggi and two samples of the Columbia duskysnail (Table 3).

 
 
  Part of: Liu H-P, Hershler R, Rossel CS (2015) Taxonomic status of the Columbia duskysnail (Truncatelloidea, Amnicolidae, Colligyrus). ZooKeys 514: 1-13. https://doi.org/10.3897/zookeys.514.9919