phylum
Echinoderms
Echinodermata
Field notes
Children
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native echinoderms All
Native to the US, by observations.
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Ochre Sea Star
Pisaster ochraceus
84,024 observations
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Bat Star
Patiria miniata
22,764 observations
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Pacific Purple Sea Urchin
Strongylocentrotus purpuratus
20,153 observations
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Leather Star
Dermasterias imbricata
17,460 observations
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Eccentric Sand Dollar
Dendraster excentricus
11,832 observations
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Orange Sea Cucumber
Cucumaria miniata
10,148 observations
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Indo-Pacific Rock-boring Urchin
Echinometra mathaei
6,637 observations
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Red Sea Urchin
Mesocentrotus franciscanus
5,677 observations
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Sunflower Sea Star
Pycnopodia helianthoides
4,991 observations
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Lollyfish Sea Cucumber
Holothuria atra
4,768 observations
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Western Spiny Brittle Star
Ophiothrix spiculata
4,457 observations
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Collector Urchin
Tripneustes gratilla
3,914 observations
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Atlantic Long-spined Sea Urchin
Diadema antillarum
3,304 observations
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Dwarf Brittle Star
Amphipholis squamata
3,057 observations
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Banded Brittle Star
Ophionereis annulata
3,042 observations