and although large quantities of stone are annually transported from Porto Santo to Madeira, yet this latter island has not become colonised by the Porto Santo species: nevertheless, both islands have been colonised by some European land-shells, which no doubt had some advantage over the indigenous species.
eta, urtero Porto Santotik Madeirara harri kantitate handiak garraiatzen diren arren, Porto Santoko espezieek ez dutela hura kolonizatu; hala ere, Europako molusku lehortarrek bi irlok kolonizatu dituzte, bertako espezieekiko abantailaren bat zutelako, dudarik gabe.