Most observed native Neognathostomata
Native to the US, by how plants support them, most observed first.
Other species All
8 native species with no plant ties on record, most observed first.
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Eccentric Sand Dollar
Dendraster excentricus
11,832 observations
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Five-slotted Sand Dollar
Mellita quinquiesperforata
3,546 observations
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Common Sand Dollar
Echinarachnius parma
1,986 observations
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Isometric Sand Dollar
Mellita isometra
1,112 observations
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Keyhole Sand Dollar
Mellita tenuis
602 observations
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Fat Sea Biscuit
Clypeaster rosaceus
442 observations
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Six-keyhole Sand Dollar
Leodia sexiesperforata
244 observations
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Michelin's Sand Dollar
Encope michelini
28 observations