any of various sand dollars having one or more elongated perforations in the test and belonging to the family Mellitidae or related families; esp.…
单词 | θ33469 |
释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > subphylum Eleutherozoa > class Echinoidea > order Clypeastroidea > member of > member of genus Mellita (1) keyhole urchin1868 any of various sand dollars having one or more elongated perforations in the test and belonging to the family Mellitidae or related families; esp.… |
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