( 4? ) 



GENERAL RESULTS 



DEDUCED FROM 



A COMPARISON OF THE SPECIES EXAMINED IN COMPILING 

 THE FOREGOING TABLES. 



PLIOCENE PERIOD. 



Italy, Sicily, the Morea, Perpignan, and the English Crag. The fossils 

 of Perpignan and the Morea are, with the exception of three or four 

 species, the same as those of Italy. 



No. of 

 species. 



In Italy . 569,ofwhich238 are still living, and 331 extinct (or unknown) 

 Sicily . 226 ,,216 10 



The Crag 111 45 66 



906 



No, of species common to Italy and Sicily . 103 

 Italy and the Crag* 4 



Sicily and the Crag 4 



Italy, Sicily, and the Crag 18 



129 



No. of species proper to Sicily . 65 

 to the Crag . 23 



By subtracting from the total number of species enumerated 



as belonging to the above localities . . . 906 



those species which are common to different localities . 129 



We find the real number of the species of this epoch to be . 777 



The number of living analogues is 350, which is in the proportion of 

 49 in 100. 



MIOCENE PERIOD. 



Bordeaux, Dax, Touraine, Turin, Baden, Vienna, Moravia, Hungary, 

 Cracovia, Volhynia, Podolia, Transylvania, Angers, and Roncat. 



The species of Moravia, Hungary, Cracovia, Volhynia, Podolia, and 

 Transylvania, are the same, with a very few exceptions, as those of 

 Vienna and Baden. 



* The statement that there are only 4 species common to Italy and the Crag, 

 may seem inconsistent with the fact that 18 are common to those places and to 

 Sicily ; but the reader will understand that there are only 4 species which are 

 common to Italy and the Crag, and which are not also common to some other 

 Pliocene locality. The same remark is applicable to similar statements in the 

 sequel. 



f Ronca may very probably belong to the Eocene epoch ; but in this, as in re- 

 spect to a few other localities mentioned in the tables, the number of analogues is 

 too small to lead to certain conclusions. 



