. Chordate morphology. Morphology (Animals); Chordata. Midway along its length it angled downward and was per- forated by the hyomandibular foramen. Just below the angle, along the posterior outer margin, was the articular area for the opercle. There was no opercular process. Distal to the hyomandibula and lying between the outer and inner condyles of the quadrate area was a rectangular symplectic, which took part in the articulation of the lower jaw. Attached to the medial aspect of the symplectic, at its syn- chondrosis with the hyomandibular, was the ceratohyal posterior. The ceratohyal seg
. Chordate morphology. Morphology (Animals); Chordata. Midway along its length it angled downward and was per- forated by the hyomandibular foramen. Just below the angle, along the posterior outer margin, was the articular area for the opercle. There was no opercular process. Distal to the hyomandibula and lying between the outer and inner condyles of the quadrate area was a rectangular symplectic, which took part in the articulation of the lower jaw. Attached to the medial aspect of the symplectic, at its syn- chondrosis with the hyomandibular, was the ceratohyal posterior. The ceratohyal segment of the hyoid arch was long, slim, and curved and it subdivided about midway into anterior and posterior ossifications. The anterior end of the cerato- hyal segment articulated with a medially directed hypohyal, -ethmosphenoid diviston- -otrcoccipital division- nasal capsule superficial ophthalmic VII t V, prespiracular process otic branches of VII. suspensorial crest carotid canal pituitary vein foramen bosipterygoid process palatine branch VII fossa Bridget cartilage suprabranchial I articulation occipitospinal nerve X foramina IX lateral commissure canal articulations of pharyngobranchials I, I estibular fontonelle nasal capsule otic shelf. fossa Bridget. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jollie, Malcolm. New York, Reinhold
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