| Term Name: | caudal fin principal ray 18 |
|---|---|
| Synonyms: | caudal principal lepidotrichium 18, caudal principal ray 18 |
| Definition: | Caudal principal ray that is ventrally adjacent to caudal principal ray 17. |
| Appears at: | Unknown |
| Evident until: | Adult (90d-730d, breeding adult) |
| Ontology: | Anatomy Ontology [ZFA:0005528] |
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