Echinoderm is the common name for an animal in the phylum
Echinodermata . The word "echinoderm" means "spiny skin." This
phylum includes animals such as sea stars, sea urchins, sea cucumbers, and brittle stars.
All of these are marine animals with radial symmetry in their body shapes.
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Brittle Stars
Red Ophiocoma, Wendt's Brittle Star (Ophiocoma
wendtii )
Spawning
[Photo credit: Sarah Davies]
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Ruby Brittle Star (Ophioderma rubicundum )
Resting on a bed of algae (Dictyota and Lobophora spp.)
[Photo credit: G.P. Schmahl/ FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
Sprawled across Boulder Star Coral (Orbicella franksi )
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
On a coral ready to spawn
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
Grabbing coral spawn
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
Grabbing coral spawn
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Stars (Ophioderma rubicundum )
Gathered to spawn
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Stars (Ophioderma rubicundum )
Gathered to spawn
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Stars (Ophioderma rubicundum )
Males spawning (cloudy substance)
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Stars (Ophioderma rubicundum )
Males spawning (cloudy substance)
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
Female spawning (tiny red dots)
[Photo credit: G.P. Schmahl/FGBNMS]
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Ruby Brittle Star (Ophioderma rubicundum )
Female spawning (tiny red dots)
[Photo credit: G.P. Schmahl/FGBNMS]
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Suenson's Brittle Star, Sponge Brittle Star (Ophiothrix
suensonii )
[Photo credit: Marissa Nuttall/FGBNMS]
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Sea Cucumbers
Beaded Sea Cucumber (Euapta lappa )
Extended with feeding tentacles visible.
[Photo credit: G.P. Schmahl/FGBNMS]
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Beaded Sea Cucumber (Euapta lappa )
Contracted with feeding tentacles visible.
[Photo credit: G.P. Schmahl/FGBNMS]
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Beaded Sea Cucumber (Euapta lappa )
Extended with feeding tentacles splayed out
[Photo credit: G.P. Schmahl/FGBNMS]
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Beaded Sea Cucumber (Euapta lappa )
Extended across the reef
[Photo credit: G.P. Schmahl/FGBNMS]
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Beaded Sea Cucumbers (Euapta lappa )
Three cucumbers extended across the reef
[Photo credit: G.P. Schmahl/FGBNMS]
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Five-toothed Sea Cucumber (Actinopyga agassizii )
[Photo credit: G.P. Schmahl/FGBNMS]
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Five-toothed Sea Cucumbers (Actinopyga agassizii )
Spawning posture
[Photo credit: G.P. Schmahl/FGBNMS]
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Five-toothed Sea Cucumber (Actinopyga agassizii )
Spawning posture amid urchins
[Photo credit: G.P. Schmahl/FGBNMS]
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Three-rowed Sea Cucumber (Isostichopus badionotus )
[Photo credit: Emma Hickerson/FGBNMS]
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Three-rowed Sea Cucumber (Isostichopus badionotus )
[Photo credit: G.P. Schmahl/FGBNMS]
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Three-rowed Sea Cucumber (Isostichopus badionotus )
[Photo credit: G.P. Schmahl/FGBNMS]
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Three-rowed Sea Cucumber (Isostichopus badionotus )
[Photo credit: G.P. Schmahl/FGBNMS]
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Three-rowed Sea Cucumber (Isostichopus badionotus )
[Photo credit: John Embesi/FGBNMS]
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Sea Stars
Nail Sea Star (Mithrodia clavigera )
Wedged in a crevice of the reef
[Photo credit: Steve & Brandi Miller]
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Sea Urchins
Purple-spined Sea Urchins, Purple Urchins (Arbacia
punctulata )
[Photo credit: Emma Hickerson/FGBNMS]
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Purple-spined Sea Urchin, Purple Urchin (Arbacia
punctulata )
[Photo credit: G.P. Schmahl/FGBNMS]
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Slate Pencil Urchin (Eucidaris tribuloide )
[Photo credit: G.P. Schmahl/FGBNMS]
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Slate Pencil Urchin (Eucidaris tribuloide )
Wedged in a reef crevice
[Photo credit: G.P. Schmahl/FGBNMS]
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Slate Pencil Urchins (Eucidaris tribuloide )
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Providing protection for small fish
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
With Red Night Shrimp (Cinetorhynchus manningi )
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Mixed spine colors
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Mixed spine colors
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Mixed spine colors
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Juvenile (black-banded spines)
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Mixed spine colors
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
A cluster at Stetson Bank
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
Contrasting spine colors
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Juvenile on brain coral
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
Between ridges at Steston Bank
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
Spawning (cloudy substance)
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
Spawning (cloudy substance)
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Five-point radial symmetry visible in star pattern on top of test
[Photo credit: Emma Hickersonl/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchins (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
[Photo credit: G.P. Schmahl/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Next to Banded Coral Shrimp (Stenopus hispidus )
[Photo credit: Emma Hickerson/FGBNMS]
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Long-spined Urchin (Diadema antillarum )
Next to Banded Coral Shrimp (Stenopus hispidus )
[Photo credit: Emma Hickerson/FGBNMS]
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