FOSSIL REPTILES. 321 



Honfleur. Its two faces are plane. The spinous apophysis is 

 but little raised, and is cut squarely. The transverse apophyses, 

 long and depressed, rise a little obliquely. 



Although these diflferent bones should not all come from the 

 same animal, it is not less certain that the most of them can- 

 not come from any known animal, and on the demonstrations 

 given by the femur and the teeth, and even on the characters 

 derived from the femur alone, it may be affirmed that there are 

 in the Stonesfield slate the remains of a very large reptile, allied 

 to the geosaurus already described, and approximating in many 

 points to the crocodiles and monitors. If the coracoid bone 

 we described be referred to it, we cannot hesitate to pronounce 

 it a lizard. It appears, assuredly, to have exceeded in size the 

 largest crocodiles known, and approached the size of a small 

 whale. From the trenchant form of the teeth, its disposition 

 was excessively voracious. All that accompanies its reinains 

 in these quarries in which it was buried, announces that it was 

 a marine animal — immense numbers of nautili, ammonites, 

 trigoniae, belemnites, some teeth of squah and other fishes, and 

 one or two species of crabs. Among these innumerable marine 

 fossils, however, have been found some long bones, which 

 appear to have come from birds of the order of grallae, and 

 even two fragments of jaw which we formerly noticed, which 

 appeared to belong to didelphis. Dr. Buckland even adds 

 that the elytrae of more than one species of coleopterous insect 

 were found there. 



Judging from the femur, the dimensions of the animal to 

 which it belonged must have been, had it the proportions of the 

 crocodile, more than thirty feet in length ; allowing it those of 

 the monitor, about forty-five. But from some of the other 

 bones, were they properly determined, a much greater length 

 might be calculated for this animal, even up to seventy feet. 



Mr. Mantell, of Lewes, also discovered some remains of 

 megalosaurus, in the forest of Tilgate. Their dimensions were 

 enormous. One fragment of a femur was twenty-two inches 



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