| Name: | ventral fin fold |
|---|---|
| Synonyms: | anal fin fold, tail fin fold, ventral fin |
| Definition: | Region of the median fin fold that develops into the anal and caudal fin. |
| Ontology: | Anatomy Ontology [ZFA:0001069] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |