FOSSIL MAMMALIA. 141 



depositions. This species seems to have been remarkable for 

 its size, and the peculiar forms of the head. 



Other debris of lamantins, not so well characterised, con- 

 sisting of remains of ribs, have been found by M. Dargelas, at 

 Capian, about fifteen leagues from Bourdeaux. They were 

 also in a marine coarse limestone, and had suffered the same 

 change as the former. 



Some more fragments of ribs of lamantins were found at 

 Marly, enclosed in the plastic argilla which is generally found 

 above the chalk formation, wherever it exists in the environs of 

 Paris. 



They have also been found in a few other localities, which 

 it would be superfluous to enumerate. 



It is quite certain, however, that an animal of this genus, 

 now proper to the torrid zone, inhabited the ancient sea which 

 covered Europe with its shells, at a period subsequent to the 

 chalk formation, but anterior to that of the gypsum in which 

 the ancient pachydermata were found. 



Fossil Dolphins. 



A dolphin, approximating to the grampus and globiceps, 

 was discovered by Cortesi, on the acclivities of the Apeninnes, 

 to the south of Fiorenzuola^ in 1793. The skeleton was found 

 almost entire, in a bluish argilla, filled with marine shells. 

 The head was nearly complete, and also one of the branches of 

 the lower jaw. Even the bones of the ear were in their proper 

 places. There remained thirty-three vertebrae ; twenty ribs, 

 thirteen of one side and seven of the other; three quadrangular 

 bones, supposed to belong to the sternum ; and some small 

 bones, more or less mutilated, which M. Cortesi supposed to 

 appertain to an anterior extremity. 



There were twenty-eight teeth in each jaw, fourteen of a 

 side, in all fifty-six. It does not appear that any grampus or 

 globiceps possesses an equal number. The largest of these 

 teeth were two inches long. 



