Term: extension vH ionocyte
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: vH ionocyte
Synonyms: HR cell, VH-MRC
Definition: Integument ionocyte rich in vacuolar-type H+ ATPase and carbonic anhydrase.
Ontology: Anatomy Ontology [ZFA:0005327]