The round whitefish is a medium-sized fish, averaging 8-12 inches in length and occasionally reaching 22 inches. Its body shape is long and tubular with a nearly round midsection. Its head is short and its mouth is small. The round whitefish is olive-brown on top shading to silver below. Round whitefish inhabit all the Great Lakes but Lake Erie. Those in shallow waters near the islands and shores of northern Lake Michigan and Lake Huron are known to locals as "menominees." Round whitefish feed at or near the bottom, mainly on small aquatic creatures. The round whitefish is closely related to the mountain whitefish. Seasonal migrations sometimes bring Menominees close to shore, where enterprising anglers pursue them with small baits and lures.