| Genus Callistochiton | |
| [[Click on the images for a larger view]] | |
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| Callistochiton crassicostatus Pilsbry, 1893 | Callistochiton palmulatus Dall, 1879 |
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| Genus Callistochiton | |
| [[Click on the images for a larger view]] | |
|
|
|
| Callistochiton crassicostatus Pilsbry, 1893 | Callistochiton palmulatus Dall, 1879 |
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