Most observed native periwinkle snails
Native to the US, by how plants support them, most observed first.
Plant eaters All
5 native animals that feed on plants, most observed first.
Other species All
17 native species with no plant ties on record, most observed first.
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Marsh Periwinkle
Littoraria irrorata
4,603 observations
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Checkered Periwinkle
Littorina scutulata
3,791 observations
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Eroded Periwinkle
Littorina keenae
2,296 observations
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Sitka Periwinkle
Littorina sitkana
2,249 observations
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Beaded Periwinkle
Cenchritis muricatus
2,177 observations
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Dotted Periwinkle
Littoraria pintado
1,258 observations
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Zebra Periwinkle
Echinolittorina ziczac
1,013 observations
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Quiet Periwinkle
Echinolittorina placida
666 observations