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Definition of " Petalosticha " in English Dictionary
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| Petalosticha | An order of Echini, including the irregular sea urchins, as the spatangoids. See Spatangoid. | n. pl. |
| English » English |
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| Petalosticha | An order of Echini, including the irregular sea urchins, as the spatangoids. See Spatangoid. | n. pl. |