subclass
Caenogastropods
Caenogastropoda
Field notes
Children
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native caenogastropods All
Native to the US, by observations.
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Knobbed Whelk
Busycon carica
6,703 observations
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Striped Dogwinkle
Nucella ostrina
6,342 observations
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Purple Olive Snail
Callianax biplicata
4,109 observations
-
Checkered Periwinkle
Littorina scutulata
3,791 observations
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California Cone
Californiconus californicus
2,921 observations
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Kellet's Whelk
Kelletia kelletii
2,909 observations
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California Horn Snail
Cerithideopsis californica
2,778 observations
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Chestnut Cowry
Neobernaya spadicea
2,546 observations
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Banded Mystery Snail
Callinina georgiana
2,525 observations
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Violet Sea Snail
Janthina janthina
2,499 observations
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Black-and-white Cone Snail
Conus ebraeus
2,340 observations
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Pointed Campeloma
Campeloma decisum
2,327 observations
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Eroded Periwinkle
Littorina keenae
2,296 observations
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Angular Unicorn
Acanthinucella spirata
1,767 observations
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Carinate Dovesnail
Alia carinata
1,684 observations