The integument or body wall of an echinoderm, on which the external calcareous skeleton is developed.
| 单词 | θ33358 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > member of > parts of > integument or body-wall (2) perisome1863 The integument or body wall of an echinoderm, on which the external calcareous skeleton is developed. Subcategories:— part surrounding anus (1) |
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