There are ten horns on the last beast corresponding to the ten toes of the Image of Daniel 2.

...............More information is given which was not revealed in the vision. A "little horn" comes up among the ten horns.

...........................Daniel 1:8
"I considered the horns and behold, there came up among them another little horn, before whom there were three of the first horns plucked up by the roots: and, behold, in this horn were eyes like the eyes of a man and a mouth speaking great things."