| Mollusca | Gastropoda | Vetigastropoda | Trochida |
| Calliostomatidae | Calliostoma | zizyphinum |
| Genus | Species |
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1
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Chioggia, Upper Adriatic Sea
45.2191° N
12.2787° E
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Kent D. Trego
dry
dry
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Originally no coordinates provided. Approximate coordinates georeferenced by volunteer Annie Shen, 2021.