Most observed native Atelostomata
Native to the US, by how plants support them, most observed first.
Other species All
7 native species with no plant ties on record, most observed first.
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Groove Burrowing Urchin
Brissus unicolor
565 observations
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Red Heart Urchin
Meoma ventricosa
232 observations
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Heart Urchin
Lovenia cordiformis
76 observations
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Mud Heart Urchin
Moira atropos
68 observations
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Mud Urchin
Brisaster latifrons
34 observations
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Long-spined Sea Biscuit
Plagiobrissus grandis
20 observations
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Rhynobrissus cuneus
9 observations