‘South of Italy, and more particularly of Italy. 213 
Not found in the 
Mediterranean. Extinet. 
Monasterace, . 2 : 0.77 0.77 
Sortino, . ; 4 : 0.53 0.53 
Cotrone, Cutre, &c., 4 ‘ 0.46 0.43 
Naseti, - F ; : 0.50 0.40 
Valley of Lamato, E : 0.37 035 
Caltagirone, : : : 0.38 0.30 
Interior of Sicily, : . 0.34 0.30 
Buccheri, . : : : 0.34 0.30 
Caltanissetta, : 3 : 0.34 0.29 
Syracuse, : s : 0.25 0.25 
Palermo, Z : ;. 0.25 0.23 
Gravina, . > : : 0.25 0.22 
Pezzo, : : : ; 0.18 0,18 
Messina, . j A : 0.17 0.17 
Girgenti, . : : : 0.20 0.15 
Militello, . ‘ ‘ , 0.15 0.14 
Carrubbare, near Reggio, : 0.11 0.11 
Monteleone, f 4 : 0.10 0.08 
Cefali, near Catania, A : 0.09 0.08 
Sciacca, . : : ‘ 0.11 0.06 
Tarento, . : : : 0.054 0.054 
Nizzeti, near Catania, ' ; 0.06 0.05 
Melazzo_ . 3 F ‘ 0.04 0.03 
Island of Ischia, . : 3 0.014 0.014 
The coast near Monte Nuovo, . 0.01 0.00 
Pozzuoli, . : ; 0.00 0.00 
We thus see plainly, that the transition from the Tertiary 
period to the present time has taken place quite gradually ; 
and that no great revolutions have given rise to lines of de- 
marcation ; but that, on the contrary, individual species have 
gradually become extinct, and others have been added, until 
the present fauna has been formed. 
We can establish no subdivisions in the Tertiary deposits 
of Southern Italy ; for we cannot even fix a limit between the 
Tertiary period and the Diluvial period, or the period of the 
present day. The division of the Tertiary series into Eocene, 
Pliocene, and Miocene, is not applicable to the formations of 
Southern Italy, in so far as it is founded on the relative pro- 
portions of extinct and living species ; and, as regards other 
localities, it may also turn out to be uncertain and arbi- 
trary. 
Lastly, we may conclude with great certainty, that the Ter- 
tiary formations of Southern Italy did not rise from the bot- 
tom of the sea at one and the same time, but that they are 
