Term: blood island nucleate erythrocyte
Name: blood island
Synonyms: blood islands, caudal hematopoietic tissue, posterior blood island, posterior ICM
Definition: Nests of developing blood cells arising late in the segmentation period from the intermediate mass, and located in the anterior-ventral tail, just posterior to the yolk extension.
Ontology: Anatomy Ontology [ZFA:0000094]

Name: nucleate erythrocyte
Synonyms: RBC, red blood cell
Definition: An erythrocyte having a nucleus.
Ontology: Anatomy Ontology [ZFA:0009256]