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  Online Guide to Chek Jawa
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photo © ria tan
Pencil sea urchin
Prionocidaris bispinosa
Family Cidaridae

Like other sea urchins, the Pencil sea urchin's body is divided into five 'slices'. You can see the five joints on the body where the plates of the test (skeleton) meet.

 

a companion website to the chek jawa guidebook
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