Sea urchin
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Wikispecies has information related to:
[edit] Sea urchins
 Paracentrotus lividus |
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 Skeleton |
 Skeleton |
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 Sea urchin eggs |
 Sea urchin eggs |
 Fossil Lovenia woodsi |
 Pluteus |
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.jpg) note the tentacles (Galicia, Spain) |
 Sea urchin in croatia |
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 From "On the Genesis of Species" |
 Pedicellariae enlarged. |
 Purple sea urchin |
