The tullibee, Leucichthys artedi tullibee (Richardson), is one of the most important commercial fishes in the Lake of the Woods. The relationship between standard length and the anterior scale radii of the tullibee can be described by a third degree parabola. Growth calculations were made using the corrected body-scale relationship. The greatest growth in length occurs during the first year of life, and the annual increment decreases each succeeding year. Males and females grow at approximately the same rate. The appearance of Lee's phenomenon is pronounced and probably is due to the differential mortality between slow-growing and fast-growing fish. No correlation could be demonstrated between annual fluctuations in growth rate and fluctuations in temperature or rainfall.