Sea Urchin
(Arbacia punctulata)

Kingdom: Animalia

     Phylum: Echinodermata

          Class: Echinoidea

               Order: Arbacioda

                    Family: Arbaciidae

                         Genus: Arbacia

                              Species: punctulata
Click thumbnail images below to view full-size images.


oral view
(close up)

aboral view
(close up)

aristotle's lantern

aboral view

oral view


aboral view
(spines removed)

oral view
(spines removed)

oral tube feet

internal

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Last updated: 11/15/99 caf/cac