Term: ball pigment cell
Name: ball
Synonyms: yolk ball
Definition: The anterior round region of the yolk cell present after the yolk extension forms during the segmentation period.
Ontology: Anatomy Ontology [ZFA:0000006]

Name: pigment cell
Synonyms: chromatocyte, chromatophore
Definition:
Ontology: Anatomy Ontology [ZFA:0009090]