arcus hyoideus — (plural arcus hyoidei)) hyoid arch (the arch lying between the gill arches and jaws, with which it is believed homologous and which helps support the floor of the mouth cavity. Composed in teleostomes of the following paired endoskeleton elements … Dictionary of ichthyology
ceratohyal — the endochondral bone articulating dorsally with the interhyal, anteriorly supporting some branchiostegal rays and ventrally joining one or two hypohyals. The ceratohyal and the epihyal are two ossification centres of the same bone and should… … Dictionary of ichthyology
dorsal cerathyal — epihyal (the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some fishes, e.g. Gadidae. May… … Dictionary of ichthyology
epihyal — the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some fishes, e.g. Gadidae. May bear a… … Dictionary of ichthyology
hyoid arch — the arch lying between the gill arches and jaws, with which it is believed homologous and which helps support the floor of the mouth cavity. Composed in teleostomes of the following paired endoskeleton elements: hyomandibula, symplectic,… … Dictionary of ichthyology
os epihyale — (plural ossa epihyalia)) epihyal (the deep, endochondral bone at the upper end of the hyoid arch below the interhyal. It joins the hyomandibular and the symplectic through the interhyal, and articulates with the ceratohyal by a suture in some… … Dictionary of ichthyology