Pike, a ravenous fresh-water fish, with long slender body, broad snout and large mouth. There are five species of the pike family. One inhabits the fresh waters of both continents; the other four are American species. The muskallunge, attaining a length of eight feet, is the finest and largest of the pikes. It is found in the Great Lake region and, occasionally, in the Ohio valley. The smaller varieties are commonly called pickerel in the United States. All rank high as food.