CERATOBRANCHIAL
ceratobranchial: translation
a long, deep, endochondral bone in the middle portion of the gill arches between the epibranchials and the hypobranchials. There are usually 5 pairs of ceratobranchials, absent in some Anguillidae, Polypterus and Calamoichthys. The fifth pair of ceratobranchialas are modified in Cypriniformes and Siluriformes into a strong, tooth-bearing bone called the inferior pharyngobranchial bone