GEOLOGICAL SOCIETY. 



87 



illary nerve, appears to entitle this animal to rank as a 

 new genus." 



The distinct and separate alveoli, are not even 

 alluded to in the characters of the genus Saurocephalus, 

 which are thus designated in the account published 

 several years ago, 



¥ Saurocephalus lanciformis. 



66 Generic characters, — Bodies of the teeth approxi- 

 mated ; those of the inferior and superior jaws closing 

 like incisors. Inferior maxillary nerve passing along a 

 groove on the mesial aspect of the dental bone." If it 

 should be hereafter ascertained that the groove for the 

 nerve does not exist in all the species which may be 

 discovered, it will only be requisite to strike out the 

 words u a groove on^ to make the generic characters 

 as originally established on a single fragment of jaw, ap- 

 ply correctly to all. 



In the present state of our investigations the follow- 

 ing are the specific characters which distinguish the 

 species already ascertained : 



S. lanciformis. Projecting portions of the teeth 

 smooth and obtusely lanciform. 



S. Leanus. Teeth rather acute, slender, slightly 

 compressed and aduncate. 



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COPROLITES. 



These curious organic fossils, so classically described 

 by Dr. Buckland, and which occur so plentifully in the 



