part of part of otic region membrane bone neurocranium bone intercalar Small membrane bone homologous with a cartilage bone in more basal fishes (Patterson, 1977). Situated between the exoccipital and the pterotic at point of attachment of short ligament that originates on the ventral arm of the posttemporal. UBERON:2000474 opisthotic ZFA:0000474 This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon