| Name: | caudal fin |
|---|---|
| Synonyms: | tail, tail fin |
| Definition: | Fin that is the most posterior median fin. It is composed of a complex of three modified centra and modified neural and hemal arches and spines. |
| Ontology: | Anatomy Ontology [ZFA:0001058] |
| Name: | epidermal superficial stratum |
|---|---|
| Synonyms: | |
| Definition: | The outer layer of the epidermis. The living cells form single cell layer, the outer surface of which is ornamented with microridges. These outer epidermal cells are not renewed periodically, but are individually replaced when dead. |
| Ontology: | Anatomy Ontology [ZFA:0001179] |