A zone of cilia circling either, or each, end of the preoral (and perianal) segments of a free-swimming polychætous annelid larva.
| 单词 | θ32664 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Polychaeta > member of > zone of cilia (1) telotroch1877 A zone of cilia circling either, or each, end of the preoral (and perianal) segments of a free-swimming polychætous annelid larva. |
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