| Name: | pectoral fin |
|---|---|
| Synonyms: | forefin, pectoral fins |
| Definition: | Paired fin that is located in the thoracic region of the body. |
| Ontology: | Anatomy Ontology [ZFA:0001161] |
| 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] |