The posterior connective tissue partition between walls of otic capsule around which the membranous semicircular canals pass.
Comment:
[provenance-note] "This class was sourced from an external ontology (amphibian_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon" xsd:string {source="http://purl.obolibrary.org/obo/aao.owl"}