. The Canadian field-naturalist. Natural history. 636 The Canadian Field-Naturalist Vol. 115. Figure 1. The Atlantic Whitefish, Coregonus huntsmani (by permission of Don E. McAllister). Drawn by P. Drukker Bramwell, 1984. developed teeth on the tongue, and premaxillaries, vomer, palatines, and lower jaw bones at all sizes. Edge et al. (1991) found Atlantic Whitefish to have 25-29 gill rakers. The Atlantic Whitefish has been confused in the past with the Lake Whitefish, Coregonus clupea- formis, which is also found in Nova Scotia. However, the Atlantic Whitefish and Lake Whitefish have been cle
. The Canadian field-naturalist. Natural history. 636 The Canadian Field-Naturalist Vol. 115. Figure 1. The Atlantic Whitefish, Coregonus huntsmani (by permission of Don E. McAllister). Drawn by P. Drukker Bramwell, 1984. developed teeth on the tongue, and premaxillaries, vomer, palatines, and lower jaw bones at all sizes. Edge et al. (1991) found Atlantic Whitefish to have 25-29 gill rakers. The Atlantic Whitefish has been confused in the past with the Lake Whitefish, Coregonus clupea- formis, which is also found in Nova Scotia. However, the Atlantic Whitefish and Lake Whitefish have been clearly distinguished based upon both morphological and genetic characteristics. Scott and Scott (1988) indicate that Lake Whitefish lack teeth on premaxil- laries, palatines and vomer bones except in juvenile fish under 100mm. Edge et al. (1991) found the best distinguishing characteristics for Atlantic Whitefish were its more terminal mouth and a higher number of vertebrae (64-67, x = ) than Lake Whitefish from the Canadian Maritime Provinces and the State of Maine. The Lake Whitefish from this area were found to have a subterminal mouth and 58-64 (x = ) vertebrae. The number of lateral line scales was also useful in distinguishing 93% of the whitefish specimens examined (Figure 2). Atlantic Whitefish had a higher number of lateral line scales (88-100, x = ) than Lake Whitefish (63-95, x = ). Other morphological characteristics for distinguishing Atlantic Whitefish and Lake Whitefish, were provid- ed by Edge et al. (1991) including comparative pho- tographs. Genetic characteristics have also proven useful for distinguishing Atlantic Whitefish from Lake Whitefish. Bernatchez et al. (1991) found Atlantic Whitefish possessed a unique isozyme and a mitochondrial DNA genotype different from that of Lake Whitefish which indicated that these two species are genetically distinct. Distribution North American and Canadian Range The Atlantic Whitefish is an endemic Can
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