Indeed, he shows that Corsica, Sardinia, Sicily, and North-west Africa form a Zoogeographical province, from which Italy, with the exception of a few localities on its west coast, is excluded.
"The History of the European Fauna"
R. F. Scharff
That the Straits of Gibraltar are only of recent formation has been suggested on Zoogeographical evidence by Bourguignat, Simroth, Kobelt, and many others.
"The History of the European Fauna"
R. F. Scharff