The conventional wisdom around here is that what qualifies a lake to be a finger lake is the inclusion on the list of Finger Lakes taught you by your elementary school geography teacher. This leaves those of us who were not elementarily educated in this part of the country to decide for ourselves. Beyond that there are, I believe, certain qualifications regarding the steepness of the sides, the length/width ratio, and the presence of hanging valleys around the edges. Waneta and Lamoka are not on the A List of Finger Lakes.