pharyngeal arch cartilage mediopharyngobranchial Pharyngeal arch cartilage, elongate and usually bifurcated posteriorly, located anteriorly on the upper branchial arches, attached to the anterior tips of the first infrapharyngobranchials. It supports rows of gill rakers on each side and is not homologous to other structures in the teleost gill-arch skeleton. One or two mediopharyngobranchials may be present. Recorded in several Clupeoidei (Nelson, 1967). Submitted by Mario de Pinna. TAO:0001695 teleost_anatomy