The Internal Cranial Elements and Foramina of Dapedius granulatus , from a Specimen recently found in the Lias at Charmouth

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Abstract
T he exterior of the skull of Dapedius has been described by Dr. A. S. Woodward in his paper entitled. ‘The Cranial Osteology of the Zoological Society in June 1893; but, owing to the scarcity of material available, the interior bones of the orbit and their foramina, and some other points regarding the exterior, have not yet been touched upon. In consequence of my discovery of a very complete skull in the Lias at Chartmouth, I have attempted to described some of the points until now undetermined. The skull was embedded in an ovoid nodule of light-coloured indurated Liassic marl, and has not been subjected to distortion by pressure, as is often the case in this formation. The nodule was lying on the foreshore between Charmouth and Lyme Regis, and had probably been washed out of the ledge known as the ‘fish-bed’ in the semicostatus zone, where I have found other remains of Ganoids. Close to this is the ‘saurian bed,’ where I got at about the same time an Ichthyosaurus tenuirostris , which in life was probably some 7 feet long, the body of which was enclosed in a large ovoid nodule of formation similar to the smaller one containing the head of the Dapedius . As we know, from the undigested scales found in the coprolites of the saurians which occur here, that the Ganoid fishes formed the bulk of their food, the juxtaposition of the two is what might be expected. Being highly pyritized, the delicate international septum of the

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