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Dorsal views of penes of the Columbia duskysnail (A USNM 1256484) and C. greggi (B USNM 883531, reproduced from Hershler 1999, Fig. 2C). Scale bars: 250 µm. Pl penial lobe. |
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| 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 |