（Click link to view detail data）
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| Hydatinidae | Hydatina albocincta | (van der Hoeven, 1811) | 
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| Hydatinidae | Hydatina amplustre | (Linnaeus, 1758) | |
| Hydatinidae | Hydatina physis | (Linnaeus, 1758) | 
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| Hydatinidae | Hydatina zonata | (Lightfoot, 1786) | |
| Hydatinidae | Micromelo guamensis | (Quoy et Gaimard, 1824) | |
| Hydatinidae | Micromelo undatus | (Bruguière, 1792) |
