OCR Text |
Show 68 MR. R. LYDEKKER ON A N E W [Feb. 19, of the cranium, showing the boundary of the nares, the whole of premaxilla (of which the upper extremity is fractured and bent), and the anterior portion of the maxilla. The true molars are unfortunately wanting, but, with the exception of the third incisor, all the other teeth are preserved, although the summits of the crowns of the two remaiuing incisors are broken off. The position of the third incisor is indicated by its alveolus, and the suture between the maxilla and premaxilla clearly shown, both in the lateral and palatal aspects. 717/n Hyracodontotherium-filholi; from the Phosphorites of Central Franco. Palatal aud lateral aspects of the anterior portion of the cranium, nat. size. pmx., premaxilla; rnx., maxilla. On comparison with the figure of H. primeevum very striking differences are exhibited by the present specimen, which indicates a larger animal. Thus, whereas the canine is nearly similar in the two specimens, the first incisor of the latter is very much larger, and the narial aperture is likewise of much greater extent; but whereas |