. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Prof. H. G. Seeley on Euskelesaurus Brownii. 319 the termination of the maxillary behind, and the extremity of the ascending facial process above. The specimen has been much decomposed by weathering, so that the palatal plate is lost, as is almost all the internal bone defining the alveoli; Fi°r. 1. Maxillary. ^~**~Ii^Al j| i ;},( J \j\ SKM^J^ y.'^r^ Premaxillary. Left maxilla of Euskelesaurus Brownii, showing successioual teeth in three alveoli. T>0 nat. size. so
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Prof. H. G. Seeley on Euskelesaurus Brownii. 319 the termination of the maxillary behind, and the extremity of the ascending facial process above. The specimen has been much decomposed by weathering, so that the palatal plate is lost, as is almost all the internal bone defining the alveoli; Fi°r. 1. Maxillary. ^~**~Ii^Al j| i ;},( J \j\ SKM^J^ y.'^r^ Premaxillary. Left maxilla of Euskelesaurus Brownii, showing successioual teeth in three alveoli. T>0 nat. size. so that they are mostly exposed as parallel oblong grooves, in some of which the successional teeth are preserved. As pre- served the jaw is 17| inches long and 8 inches deep below the facial process. The inferior alveolar border is gently convex in length, especially beneath the facial process. Its margin appears to be entire in front. The premaxillary suture is shown ascend- ing in a straight line, at right angles to the alveolar margin and oblique to the alveoli. It is within about 2^ inches of the anterior extremity, as indicated by the impression, from which the bone is broken away below the nasal vacuity. There are no indications of teeth in the premaxillary bone exposed, and if the teeth were of the same size as in the maxillary, there could not have been more than two alveoli within its limits. In the maxillary bone eleven sockets are easily traced, and there appear to have been twelve. The jaw is formed much on the type of Megalosaurus from the Stonesfield slate, except that there is no indication of a simi- larly extended posterior attenuation of the maxillary bone, and the nasal vacuity has a lower lateral position at the side of the snout, indicating relatively small depth anteriorly for the tooth-sockets. The measurement below the narial margin is 2§ inches, so that the premaxillary teeth may have been smaller than the maxillary teeth. The nasal vacuity is longi- tu
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