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| Kingdom Animalia |
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Arbacia Gray, 1835 -- valid |
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Arbacia punctulata (Lamarck, 1816) -- valid -- purple-spined sea urchin, purple-spined sea urchin |
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Arbaciidae Gray, 1855 -- valid |
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Arbacioida Gregory, 1900 -- valid |
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Aspidodiadematidae Duncan, 1889 -- valid |
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Brissidae Gray, 1855 -- valid |
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Brissopsis L. Agassiz, 1847 -- valid |
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Brissopsis alta Mortensen, 1907 -- valid |
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Brissopsis atlantica Mortensen, 1907 -- valid |
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Cassidulidae L. Agassiz and Desor, 1847 -- valid |
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Cassiduloida Claus, 1880 -- valid |
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Cassidulus caribaearum Lamarck, 1801 -- valid |
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Cidaridae Gray, 1825 -- valid |
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Cidaroida Claus, 1880 -- valid -- pencil urchins, pencil urchins |
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Clypeaster chesheri Serafy, 1970 -- valid |
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Clypeaster cyclopilus H. L. Clark, 1941 -- valid |
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Clypeaster euclastus H. L. Clark, 1941 -- valid |
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Clypeaster prostratus Ravenel, 1848 -- valid |
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Clypeaster ravenelii (A. Agassiz, 1869) -- valid |
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Clypeaster rosaceus (Linnaeus, 1758) -- valid -- sea biscuit, sea biscuit |
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Clypeaster subdepressus (Gray, 1825) -- valid -- sand dollar, sand dollar |
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Clypeasteridae L. Agassiz, 1835 -- valid |
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Clypeasteroida A. Agassiz, 1872 -- valid -- sand dollars, sand dollars |
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Conolampus sigsbei (A. Agassiz, 1878) -- valid |
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Diadema J. E. Gray, 1825 -- valid |
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Diadema antillarum (Philippi, 1845) -- valid -- long-spined sea urchin, long-spined sea urchin |
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Diadematidae Gray, 1855 -- valid |
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Diadematoida Duncan, 1889 -- valid |
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Echinidae Gray, 1825 -- valid |
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Echinodiscus quinquiesperforata Leske, 1778 -- invalid |
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Echinodiscus sexiesperforata Leske, 1778 -- invalid |
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Echinoida Claus, 1876 -- valid |
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Echinolampadidae Gray, 1851 -- valid |
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Encope aberrans Martens, 1867 -- valid |
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Encope michelini L. Agassiz, 1841 -- valid -- notched sand dollar, notched sand dollar |
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Eucidaris tribuloides (Lamarck, 1816) -- valid -- slate pencil urchin, slate pencil urchin |
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Leodia sexiesperforata (Leske, 1778) -- valid -- six holed keyhole urchin, six holed keyhole urchin |
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Lytechinus variegatus (Lamarck, 1816) -- valid -- green sea urchin, green sea urchin |
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Mellita quinquiesperforata (Leske, 1778) -- valid |
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Mellita sexiesperforata (Leske, 1778) -- invalid |
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Mellita testudinata L. Agassiz, 1841 -- invalid |
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Mellitidae Stefanini, 1911 -- valid |
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Moira atropos (Lamarck, 1816) -- valid |
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Schizaster orbignyanus A. Agassiz, 1880 -- valid |
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Spatangus atropus Lamarck, 1816 -- invalid |
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Stylocidaris affinis (Philippi, 1845) -- valid |
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