| Name: | median fin fold |
|---|---|
| Synonyms: | median fin |
| Definition: | Surface structure that will develop into one of the median fins. Extends from dorsal surface of fish, caudal to the 8th somite, to the ventral surface ending at the caudal side of the vent. |
| Ontology: | Anatomy Ontology [ZFA:0000040] |
| Name: | periderm |
|---|---|
| Synonyms: | EVL |
| Definition: | The outermost epidermal layer covering the fish at embryonic stages; derived from the EVL and thought to eventually be replaced by the superficial stratum of the epidermis. Sometimes used synonymously with EVL. |
| Ontology: | Anatomy Ontology [ZFA:0001185] |