class
Gastropods
Gastropoda
Field notes
Children
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native gastropods All
Native to the US, by observations.
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White-lipped Snail
Cepaea hortensis
23,247 observations
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Monterey Dorid
Doris montereyensis
17,809 observations
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Button's Banana Slug
Ariolimax buttoni
17,044 observations
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Pacific Sideband
Monadenia fidelis
13,902 observations
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Meadow Slug
Deroceras laeve
13,467 observations
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Acute Bladder Snail
Physella acuta
12,641 observations
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Black Tegula
Tegula funebralis
12,433 observations
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Spotted Dorid
Triopha maculata
12,059 observations
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Changeable Mantleslug
Megapallifera mutabilis
11,412 observations
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Hopkins' Rose Nudibranch
Ceratodoris rosacea
11,031 observations
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White-lip Globe Snail
Mesodon thyroidus
10,527 observations
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California Seahare
Aplysia californica
10,106 observations
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Red Sponge Dorid
Rostanga pulchra
8,510 observations
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Marsh Ramshorn
Planorbella trivolvis
8,381 observations
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Globular Drop Snail
Helicina orbiculata
8,203 observations