synaptic neuropil layer ellipsoid body layer 2009-08-13T02:47:31Z FBbt:00040034 ellipsoid body ring layer of ellipsoid body Nomenclature for the layers is not consistent. Layers have been updated to correspond to Omoto et al. (2018), who claim to have a mostly complete map of R-neuron arborizations and provide mappings to previous terminology - https://orcid.org/0000-0002-1373-1705. fly_anatomy.ontology VFB:FBbt_00040034 ellipsoid body domain A concentric subdivision of the ellipsoid body resulting from the arborization patterns of the ring neurons (FBbt:00003649). ellipsoid body subdivision