(in a trochophore larva) a ring of cilia encircling the body posterior to the apical tuft.
| 单词 | θ31399 |
| 释义 | the world > animals > invertebrates > bodies or parts > [adjective] > relating to mouth and stomach > of pre-oral ridge surrounding body (1) prototroch1890 (in a trochophore larva) a ring of cilia encircling the body posterior to the apical tuft. |
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