262 TEETIAET VEETEBEATA OF THE EATtM. 



The posterior portion behind the middle of the orbits is wanting, but the remainder 

 is complete and itndistorted, though nearly all the teeth are missing. In the general 

 form of its head this Crocodile must have been very similar to the recent species 

 C. catajihractus and C. intermedius, the snout being long and slender, its length being 

 about 2J times as great as its vs^idth at the level of the front of the orbits, as in the 

 species mentioned. The upper surface of the preorbital region is somewhat flattened 

 and is bent sharply downwards at the sides to the alveolar border, at least posteriorly : 

 as a whole, the snout is bent somewhat upwards, so that in profile it is slightly 

 concave above ; it narrows gradually towards its anterior extremity, there being 

 scarcely any expansion of the premaxillary region, the posterior boundary of which 

 is, however, marked by a slight notch behind the fifth tooth, where the maxillo- 

 premaxillary suture passes on to the palate. The facial processes of the premaxillse 

 extend back to the level of the alveolus of the third maxillary tooth, while the 

 palatine processes reach only to the level of the interval between the first and second 

 teeth ; there is a small triangular anterior palatine vacuity. The nasal opening is 

 large and an elongate oval in outline ; the nasals extend into the opening, but the 

 premaxillse seem to have just met one another in its posterior border. The anterior 

 angle of the palatine bones is opposite the eighth maxillary tooth, and the anterior angle 

 of the posterior palatine vacuities is opposite the ninth. The sculpture of the facial 

 surface of the bones is much more strongly marked in the neighbourhood of the orbits 

 than it is further forwards. 



The alveolar border of the jaw is sinuous, the concavities being at the junction 

 of the maxilla and premaxilla and between the seventh and eighth maxillary teeth. 

 The alveoli of the anterior premaxillary teeth are comparatively small and are 

 almost in contact in the middle line. They are separated from the alveoli of the 

 second pair by deep pits for the reception of the anterior mandibular teeth, which 

 perforated the upper surface of the snout. The second pair are small, and they 

 are in close contact with the much larger third pair, behind which there is a notch. 

 The fourth pair are large and are separated by a pit from the smaller fifth and last pair 

 of premaxillary teeth. Between the premaxillary and maxillary series there is a notch 

 for the reception of the large mandibular tooth. The first three maxillary teeth are 

 comparatively small and nearly equal in size, and are separated by shallow pits. The 

 fourth and fifth are much larger, and the sixth is also large and is separated by a pit 

 from the much smaller seventh. Behind this there is a deep notch in the side of the 

 jaw. The eighth tooth is small, the ninth and tenth much larger ; then come six other 

 teeth gradually diminishing in size from before backwards. The teeth themselves are 

 nearly all wanting in the present specimen, but in one which is well preserved it can 

 be seen that they had sharp anterior and posterior carinse and that the inner face 

 is flatter than the outer ; the enamel is marked with fine parallel grooves. 



As already mentioned, the general form of this skull resembles that of the skulls 



