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Family: Brissidae |
Order: Spatangoida |
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Locality: Philippines, Olango Island, 50-75 m, by tangle nets 2009 |
Dimensions: 155 x 135 x 80 mm |
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| Compared with my former, probably more juvenile specimen, this one shows the posterior petals more fused, a conical cross-section in the upper part, the vertex just in front of the apical system, sloping down to the steep rear end, and a sunken area below the anal opening. | |
