| Name: | extension |
|---|---|
| Synonyms: | yolk extension |
| Definition: | The posterior elongated region of the yolk cell that forms during the segmentation period. |
| Ontology: | Anatomy Ontology [ZFA:0000106] |
| Name: | integument |
|---|---|
| Synonyms: | skin |
| Definition: | The outer protective barrier that separates the animal from its aquatic environment. |
| Ontology: | Anatomy Ontology [ZFA:0000368] |