Term: yolk syncytial layer integument
Name: yolk syncytial layer
Synonyms: periblast, yolk sac, YSL
Definition: Peripheral layer of the yolk cell including nuclei and non-yolky cytoplasm.
Ontology: Anatomy Ontology [ZFA:0000088]

Name: integument
Synonyms: skin
Definition: The outer protective barrier that separates the animal from its aquatic environment.
Ontology: Anatomy Ontology [ZFA:0000368]