What is the difference between a beagle and a beagle harrier?

Harrier Beagles are not Beagles they are hounds that look similar. Beagles are hounds as well. Beagles can be short and stocky or tall and slender like people they can come in all shapes and sizes.

A Harrier is a Harrier. A Beagle is a Beagle. Both are hounds. Harriers are just a tad bit bigger.